What are the formed elements of blood and their functions? The most numerous blood cells are erythrocytes containing hemoglobin. They carry oxygen from the respiratory system to the tissues and help transport carbon dioxide in the opposite direction. They are responsible for the red color of the blood.

What are the three formed elements of blood?

The resulting elements are cells and cell fragments suspended in plasma. The three classes of elements produced are erythrocytes (red blood cells), leukocytes (white blood cells), and platelets (platelets).

What are the five functions of blood?

The five functions of blood in the body include the transport of oxygen, waste products and hormones. Thermoregulation. Homeostatic balance in the body system. Trauma wound healing. It carries oxygen and carbon dioxide through respiration.

What are the important functions of the blood?

Blood transport functions. The nutrients in the food you eat are absorbed through your digestive tract. Protection. Many types of white blood cells protect the body from outside threats, such as pathogenic bacteria that enter the bloodstream through a wound. Maintain homeostasis. Remember that body temperature is controlled by a negative feedback loop.

What are the formal elements of blood?

1) neutrophil 2) eosinophil 3) basophil.

What are th four functions of blood in the body?

What are the main functions of the blood? Transport of foodstuffs: Transport of inhaled gases: Acts as a means of transport: Disposal of waste products: Blood clotting: Regulation of body temperature: Protective measures: Regulates blood pressure:.

What are the unformed elements of blood?

The building blocks of blood are red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (platelets).

What are the formed elements of blood and their functions are called

Function: White blood cells, one of the three blood cells, also called leukocytes, are responsible for protecting against bacteria, viruses and parasites. These blood cells can fight disease in many ways. They can produce antibodies that dominate microbes or they can surround and consume any bacteria present.

What are the basic elements of blood?

What is blood? Plasma is the main component of blood and consists mainly of water mixed with proteins, ions, nutrients and waste. Red blood cells are responsible for transporting oxygen and carbon dioxide. Platelets are responsible for blood clotting. White blood cells are part of the immune system and participate in the immune response.

What is the chemical composition of human blood?

Blood is a complex mixture of compounds, including plasma, as well as red blood cells and leukocytes. Chemically, they are proteins or carbohydrates.

What are the two major elements of blood?

Plasma components: This main component of blood makes up about 55% of the blood volume. Red blood cells (erythrocytes): These cells determine the blood type and are the most common type of blood cell. White blood cells (white blood cells): These cells play an important role in the immune and lymphatic system, protecting the body from infection.

What process by which formed elements of the blood develop?

Hematopoiesis (hematopoiesis) is a process that produces the building blocks of blood. Hematopoiesis occurs in the red bone marrow, which is found in the epiphyses of long bones (for example, the humerus and femur), flat bones (ribs and skull bones), vertebrae, and pelvis.

What is the largest formed element in the blood?

Three elements consisting of erythrocytes (RBC), leukocytes (WBC), platelets (platelets) The composition of blood plasma and elements that make up the order of leukocytes (from highest to lowest), neutrophils, lymphocytes, monocytes, eosinophils, basophils.

What are the formed elements of blood and their functions worksheet

The parts of cells called formed parts include red blood cells (RBC), white blood cells (WBC), and cell fragments called platelets. The extracellular matrix called plasma makes blood unique among connective tissues because it is liquid.

What are the formed elements of red blood cells?

The elements formed consist of red blood cells (red blood cells that carry oxygen), white blood cells (white blood cells that work for immunity) and platelets (cell fragments that contribute to blood clotting).

What makes up the formed elements of the body?

The elements formed consist of red blood cells (red blood cells that carry oxygen), white blood cells (white blood cells that work for immunity) and platelets (cell fragments that contribute to blood clotting). About 8% of an adult's body weight is blood.

Which is the smallest formed element of blood?

Platelets, or platelets, are the smallest building blocks that are actually fragments of large cells called megakaryocytes found in the bone marrow.

What is the composition of the circulatory system?

Blood: its composition and functions. The blood in your circulation is a watery fluid and consists of two main components: 1) plasma (55%) and 2) blood corpuscles (45%). Part A: Plasma. Plasma is a pale yellow liquid part of blood that consists of about 90% water.

What are 3 components of blood?

Blood is made up of four components: plasma, red blood cells, white blood cells and platelets. Plasma is the liquid component of blood in which the other three components are suspended.

What 3 Things is blood made of?

Blood mainly consists of three components: blood cells, plasma and platelets. The cells are predominantly white or red, and together they do most of the work the fluid does as a whole.

What are the 3 elements of circulatory system?

• Heart: The size of an adult's two arms crossed, with the heart in the center of the chest.
• Arteries: Arteries carry oxygenated blood from the heart to where it needs to go.
• Veins: Veins carry deoxygenated blood to the heart, from where it is sent to the lungs to receive oxygen.

What are the three formed elements of blood include which of the following structures

The resulting elements are cells and cell fragments suspended in plasma. The three classes of elements produced are erythrocytes (red blood cells), leukocytes (white blood cells), and platelets (platelets). Erythrocytes, or red blood cells, are the most abundant elements produced.

What are the three formed elements of blood produced

The three classes of elements produced are erythrocytes (red blood cells), leukocytes (white blood cells), and platelets (platelets). Erythrocytes (red blood cells) Erythrocytes, or red blood cells, are the most abundant elements produced. Red blood cells are small biconcave disks that are thin in the center and thicker in the periphery.

Where do the formed elements of blood come from?

All the building blocks of blood come from a single population of cells called stem cells or hemocytoblasts. These stem cells differentiate into different cell lines, each ending in the formation of a certain type of figure element (figure).

What makes up 95% of the formed elements?

Describe the origin and structure of platelets. About 95% of the volume of elements formed consists of erythrocytes (erythrocytes), erythrocytes (ĕrith'rōsı̄tzerythro, red + kytos, cell).

What are the major purposes of blood?

Blood has three main functions: transport, protection and regulation. Transport. The blood carries the following substances: gases, namely oxygen (O2) and carbon dioxide (CO2), between the lungs and the rest of the body. Nutrients from the digestive tract and their stores to the rest of the body.

What are the names of blood diseases?

Anemia, high blood pressure and cholesterol in the blood are well-known types of blood disorders. Other examples include sepsis, leukemia, and hemophilia.

What are the five functions of blood vessels

One of the main functions of blood vessels is to transport blood throughout the body. Blood vessels also play a role in controlling blood pressure. Blood vessels are found throughout the body. There are five main types of blood vessels: arteries, arterioles, capillaries, venules, and veins.

How are blood vessels similar in structure and function?

The different types of blood vessels differ slightly in structure but share the same general characteristics. Arteries and arterioles have thicker walls than veins and venules because they are closer to the heart and receive blood, which rises to much higher pressures (Fig. 2).

How many blood vessels are there in the human body?

An adult would be over 100,000 miles long. There are three types of blood vessels: arteries, veins and capillaries. Each of them plays a specific role in blood circulation. The arteries carry oxygenated blood from the heart.

How are blood vessels transported throughout the body?

Blood vessels circulate blood throughout the body. The arteries carry blood from the heart. Veins carry blood back to the heart. Capillaries surround the cells and tissues of the body and supply and absorb oxygen, nutrients and other substances. Capillaries also connect branches of arteries and branches of veins.

Why are arteries important in the circulation process?

Each of them plays a specific role in blood circulation. The arteries carry oxygenated blood from the heart. They are tough on the outside but contain a smooth inner layer of epithelial cells that facilitate blood flow. The arteries also contain a strong, muscular middle layer that helps pump blood around the body.

List five functions of blood

Some of the main functions of the blood are: 1. Transporting food, 2. Transporting respiratory gases, 3. Acting as a vehicle, 4.

What are the 5 major functions of blood?

The five main functions of blood are to limit fluid loss at sites of injury, stabilize body temperature, protect against toxins, regulate the pH and ionic composition of intercellular fluids, and transport dissolved gases.

What are two functions performed by blood in the human body?

Blood has the following functions: Transport of oxygen and carbon dioxide: Blood carries oxygen from the lungs to the respiratory surface, from the mouth to the body tissues, and carbon dioxide from the tissues to the respiratory surface. Food Transport: The blood carries digested food to various cells in the body.

Which is function of human blood includes the other three?

Blood has three main functions: transport, protection and regulation. Blood carries the following substances: gases, namely oxygen (O2) and carbon dioxide (CO2), between the lungs and the rest of the body, nutrients from the digestive tract and stores for the rest of the body.

Why is blood pressure important to the body?

The main function of blood pressure is to use the circulatory system to keep blood flowing throughout the body. Your blood is full of oxygen and nutrients that provide energy to the tissues and organs of the body. Blood pressure also brings immune cells called white blood cells to parts of the body that need them.

What is the relation between blood pressure and blood flow?

Blood flow is the movement of blood through a vessel, tissue, or ■■■■■. Reducing or blocking blood flow is called resistance. Blood pressure is the force exerted by blood on the walls of the arteries or chambers of the heart.

What are the functions of the blood in the body?

Specific functions of the blood also include protection, heat distribution and maintenance of homeostasis. The nutrients in the food you eat are absorbed through your digestive tract. Most of them travel through the bloodstream directly to the liver where they are processed and reach the bloodstream to be delivered to the cells of the body.

How are the values of blood pressure determined?

Blood pressure measurements are determined by listening to the heartbeat and between beats as follows: By listening to the heartbeat, the doctor can determine the maximum blood pressure associated with contraction of the ventricle ().

What are the five functions of blood glucose

Functions Of Glucose - Glucose Provides A Way To Get An Energy Bump And Use It For Your Metabolism - Glucose Provides A Way To Get A Whole Body Energy Bump. Researchers say glucose is the main sugar used for your metabolism. Helps in the formation of the hormone insulin: the body converts carbohydrates into glucose.

What is the main function of glucose in the body?

The main function of glucose is to serve as a source of biological fuel for the body. All cells in the body can use glucose for energy.

Why do they need to control blood sugar levels?

A blood sugar or blood sugar reading is the amount of sugar currently present in the blood. Sugar comes from the food you eat. The human body regulates blood sugar so that it is not too high or too low. The internal environment of the blood must remain stable for the body to function.

Where does glucose go in the human body?

One of these sugars is glucose, the body's main source of energy. Glucose enters the bloodstream directly from the digestive system after ingesting and digesting food. However, glucose can only enter the cells if there is insulin in the blood. Without insulin, cells will starve.

Why does the brain use glucose as a fuel?

During periods of constant hunger, the brain may switch to using fat breakdown products (ketones) as fuel. Mature red blood cells are also completely dependent on glucose for fuel, as these cells have no internal mechanism for getting energy from other food sources.

What are the two types of circulation in the heart?

1. There are two types of blood circulation: pulmonary circulation and systemic circulation. The oxygenated blood then returns to the heart. Systemic blood flow provides blood circulation between the heart and the rest of the body. It sends oxygenated blood to the cells and returns deoxygenated blood to the heart.

What happens to the flow of blood in the heart?

The heart works ■■■■■■ to get oxygenated blood where it is needed. An abnormal or irregular heartbeat can interrupt blood flow to the heart. This can happen in several ways: the electrical impulses that control the heartbeat are impaired and cause arrhythmias or irregular heartbeats.

How does the circulation of blood help respiration?

Systemic circulation promotes internal respiration - oxygenated blood flows through capillaries throughout the body. Blood circulates oxygen to cells and absorbs carbon dioxide. 4. The lung loop only carries blood between the heart and the lungs.

What are the five functions of blood donation

Donating whole blood can help these people. Apheresis is a process similar to donating whole blood. This provides other blood components such as platelets. Platelet donation can help people with bleeding. You can also administer antibodies to fight diseases such as COVID19.

Which is a transfusable component of donated blood?

Transfusion components can be obtained from donated blood: erythrocytes, platelets, plasma, cryoprecipitated ICA (cryo) and granulocytes.

What happens to the liquid part of blood during blood donation?

With plasma donation (plasmapheresis), the liquid part of the blood (plasma) is collected. Plasma promotes blood clotting and contains proteins and other substances such as electrolytes that help the body function properly.

What kind of blood do you donate to a blood bank?

The donation can be direct whole blood or individual components (the latter is called apheresis). Blood banks are often involved in both the collection process and subsequent procedures. Today, most blood donors in developed countries are unpaid volunteers who donate blood to the community.

What are the 6 functions of blood?

Some of the main functions of the blood are: 1. Transport of food, 2. Transport of respiratory gases, 3. It acts as a vehicle, 4. Removal of waste products: 5. Blood clotting: 6. Regulation of the body temperature of the blood. , 7. Protective actions and 8. Regulates blood pressure.

What are the two main components of blood?

Whole blood consists of two main parts: plasma and cellular. The plasma part consists mainly of water and plasma proteins while the cellular part consists of white and red blood cells and platelets.

What are the 4 parts of blood?

A, B, AB and O are four blood groups. Blood is divided into two categories based on Rh positive and Rh negative factors. The four components of blood are erythrocytes, leukocytes, platelets and plasma.

What are the main components of the cardiovascular system?

The main components of the human cardiovascular system are the heart, blood and blood vessels. It includes a minor circulation, a circuit through the lungs where the blood is oxygenated, and a systemic circulation, a circuit through the rest of the body to supply oxygenated blood.

What are the important functions of the blood vessels

Vein walls have three layers, but they are much thinner than arterial walls. The lumen of a vein is much larger than the lumen of arteries, so it can hold more blood than arteries. For example, veins can serve as reservoirs for blood. Many veins also contain valves.

What are facts about blood vessels?

Blood vessel data 1: capillary function. Capillaries must regulate the exchange of chemicals and water in tissues and blood. The blood then flows from the capillaries through the veins back to the heart.

Which type of blood vessels hold the most blood?

Arteries are the largest type of blood vessel. These are elastic bands that allow blood to flow out of the heart. There are also two main types of arteries: pulmonary arteries and systemic arteries.

What are the three main components of blood?

Blood is the fluid that circulates in the vascular system of most animals, including humans. The four main components are red blood cells, white blood cells, platelets and plasma.

What is blood and describe the major components of it?

Blood is a special body fluid. It has four main components: plasma, red blood cells, white blood cells and platelets. Blood has many different functions, including carrying oxygen and nutrients to the lungs and tissues.

What are the constituent parts of blood?

Components of blood plasma. Plasma is the liquid component of blood containing red blood cells, white blood cells and platelets in suspension. Red blood cells. Red blood cells (also called erythrocytes) make up about 40% of the blood volume. White blood cells.

What are the important functions of the blood cells

The main functions of red blood cells (erythrocytes) are to carry oxygen to all parts of the body, bind with hemoglobin and remove carbon dioxide.

What does blood bring to the cells?

Blood carries oxygen and nutrients to all the cells in your body so they can grow and stay healthy. It removes waste products from your cells to keep them clean. Blood also helps to heal illness. Blood is produced in the marrow of certain bones.

What do blood cells help do?

Red blood cells carry oxygen to your body's organs and tissues. White blood cells help the body fight infection. Platelets contribute to blood clotting. Blood cell disorders affect the production and function of one or more of these types of blood cells.

What are the duties of a red blood cell?

The main function of red blood cells is to carry oxygen to the cells of the body and carbon dioxide to the lungs. The erythrocyte has a so-called biconcave shape. Both sides of the cell surface fold inward, like the inside of a sphere.

What is the purpose of red blood cells?

Introduction: erythrocytes. Red blood cells carry oxygen to the cells of the body. Hemoglobin in red blood cells binds to oxygen in the lungs and these cells travel through the blood to all cells to provide the oxygen they need.

How are red blood cells adapted to their function?

Settings for efficient oxygen diffusion. Red blood cells have very thin cell membranes that allow oxygen to diffuse quickly. The cells themselves are thin, so oxygen can only diffuse a short distance to reach the center of the cell.

What are red blood cells highly specialized for the function of?

Red blood cells (erythrocytes). Red blood cells are highly specialized and well suited to their main function, which is to carry oxygen from the lungs to all tissues in the body. Red blood cells are about 1 meter (1 inch) in diameter and are shaped like biconcave disks that provide a high surface area to volume ratio.

What is the correct or Order of blood flow?

Blood circulates through the heart in the following order: 1) body > 2) vena cava inferior/superior > 3) right atrium > 4) tricuspid valve > 5) right ventricle > 6) pulmonary arteries > 7) lungs > 8) pulmonary veins > 9) left atrium > 10) mitral valve or bicuspid valve > 11) left ventricle > 12) aortic valve > 13) aorta > 14) body.

What are the steps of blood flow?

These are the steps for blood flow to the heart: to the superior and inferior vena cava, then to the right tricuspid cavity, straight to the lungs, to the lungs, to the lungs.

What are the four main functions of the heart?

The main functions of the cardiovascular system. This page introduces you to the four main functions: transport, protection, water management and thermoregulation of the cardiovascular system.

What are the parts of the heart and their functions?

The heart consists of four hollow chambers, two atria (right and left) and two ventricles (right and left). The atria are smaller than the ventricles, their walls are much thinner and less muscular. These chambers are located in the upper part of the heart. Its function is to collect blood and send it to the ventricles of the heart.

What are the 4 chambers of the heart and their functions?

Chambers of the heart and their functions. There are four heating chambers: right atrium, right ventricle, left atrium and left ventricle. and the right atrium pumps blood to the right ventricle. The right ventricle pumps blood through the pulmonary artery to the lungs.

What is the structure and function of the human heart?

Structure and function of the human heart The human heart is a pump. It pumps blood throughout the body at different speeds and pressures, depending on the body's needs. Blood travels through the heart through a series of contractions and relaxation of the heart muscle in the walls of its four chambers. These events make up the cardiac cycle.

What is the importance of blood pressure?

A. Blood pressure is important because the higher your blood pressure, the greater your risk of future health problems. High blood pressure puts extra pressure on the arteries and heart.

What is good reading for BP?

Any blood pressure below 120/80 mm Hg is normal. art. And above 90/60 mm Hg. art. An adult. If it is within the normal range, no medical intervention is required. However, you should maintain a healthy lifestyle and weight to prevent the development of high blood pressure.

What happens if your body makes too much blood?

A transfusion reaction can also occur if a person receives too much blood. This is known as transfusion-related circulatory overload (TACO). Too much blood can overload the heart, make it difficult for the body to pump blood, and cause fluid to build up in the lungs.

Why is plasma a very important component of blood?

Plasma is an important part of the blood that helps with everything from regulating body temperature to fighting infection.

What are the different functions of blood plasma?

• Nutritional function. Therefore, blood plasma is responsible for transporting various nutrients to the tissues of the body.
• Transport function.
• excretory function.
• Homeostatic function.
• Blood volume regulating function.
• Thermal control function.
• Electrolyte balance or regulatory function.
• Chemical function.

What is the most abundant constituent of the blood plasma?

Blood pH and osmotic pressure are maintained by ions, proteins and other plasma molecules. Plasma proteins are the most abundant substances in plasma and are found in three main types namely albumins, globulins and fibrinogen. They fulfill the following specialized roles:.

What amount of the blood is composed of plasma?

About 55% of your blood is plasma, and the remaining 45% are red blood cells, white blood cells, and platelets suspended in plasma. Plasma consists of 92% water. It also contains 7% vital proteins such as albumin, gamma globulin and antihemophilic factor, as well as 1% minerals, sugars, fats, hormones and vitamins.

What causes hemolytic anemia

Hemolytic anemia is a condition in which red blood cells are destroyed prematurely. Cells are destroyed faster than the bone marrow can make new cells. Hemoglobin, the oxygen component of red blood cells, is released when these cells are destroyed.

What is the prognosis of hemolytic anemia?

The prognosis of patients with hemolytic anemia depends on the underlying cause. In general, the death rate from hemolytic anemia is low. However, the risk is higher in elderly patients and patients with cardiovascular failure.

What medications can cause anemia?

Medications that can cause this type of hemolytic anemia include cephalosporins (a class of antibiotics), the most common cause. dapsone. Levodopa. Levofloxacin Methyldopa.

What are the health risks caused by anemia?

• Great fatigue. Severe anemia can make you so tired that you can no longer do your daily activities.
• Complications of pregnancy. Pregnant women with folic acid anemia are more likely to have complications such as preterm birth.
• Heart problems. Anemia can cause a fast or irregular heartbeat (arrhythmia).
• Death.

What are the components of blood and what are their functions

Jamuuj's Answer The five functions of blood in the body include the five main functions of blood: limiting fluid loss at the sites of injury, stabilizing body temperature, eliminating toxins, regulating pH and fluid composition ionic intercellular cells and transport dissolved gases.

What are the functions of the formed elements of blood?

Elements of blood. Overview. Blood carries oxygen and nutrients to body tissues and returns waste products and carbon dioxide. Blood distributes almost everything that is transported from one part of the body to another. For example, blood carries hormones from endocrine organs to target organs and tissues.

How long does it take to make red blood cells?

Different types of blood cells have different life spans. Red blood cells persist for about 120 days, platelets for about 10 days, and different types of white blood cells can last from a few days to several years. The body has a feedback system that tells it when to make new red blood cells.

What do red blood cells do to your body?

Hemoglobin is a protein in red blood cells that carries oxygen. Red blood cells also remove carbon dioxide from your body and carry it to your lungs so you can breathe. Red blood cells are formed in bones called bone marrow. They usually live about 120 days and then die.

Is red blood cell considered as a true cell?

However, a mature red blood cell without DNA is not by definition a real cell, but a less equipped cell that is still functioning.

What are red blood cells called?

Red blood cells or erythrocytes, also called erythrocytes, are a cellular component of the blood, millions of which in the circulation of vertebrates give the blood its characteristic color and transport oxygen from the lungs to the tissues. Red blood cells (erythrocytes) are sometimes simply referred to as red blood cells.

What are the components of blood pressure readings

Blood pressure consists of two components: Systolic pressure: the pressure in the artery during the contraction phase of the ventricles of the cardiac cycle. At this point, the pressure in the container is maximum. Diastolic pressure: pressure in the artery when the ventricles are relaxed.

What are the best blood pressure readings?

The optimal blood pressure value is less than 120/80 mm Hg. Measurements greater than 120/80 mm Hg. art. And up to 139/89 mm Hg. art. They range from normal to high.

Which is more dangerous systolic or diastolic?

When measuring blood pressure, the systolic pressure is the top number and the diastolic pressure is the bottom number. People with higher systolic blood pressure had a higher risk of hemorrhagic stroke and stable angina (chest pain), while people with higher diastolic blood pressure were more likely to be diagnosed with aneurysm.

What is good BP for seniors?

Low blood pressure can also be a problem, especially in older people. Some doctors aim to keep blood pressure slightly higher in people over 65. Healthy blood pressure in older adults can be 140/90, 150/80, or 150/85.

Which number is more important blood pressure?

The most important number for your blood pressure is the systolic number, in your case 124. The diastolic number 74 is less important. Cardiovascular diseases are more common and are associated with an increase in systolic blood pressure.

What are the types of blood

And here's a more accurate breakdown of the percentage from the most common to the rarest blood types in the United States: Positive (%) Positive (%) B Positive (%) Negative (%) Negative (%) AB Positive (%) Negative ( %) A negative (%).

What are the rarest blood types in the world?

AB is the rarest disease and less than one percent of the world's population has this blood group. B's and O's are also very rare, each representing less than 5% of the world's population.

What blood group is unique to humans?

AB+ or AB positive is one of the most unique blood groups in the world. Blood type AB has A and B antigens on the surface of red blood cells, while most other blood types have only one of them.

Why do they have different blood types?

People didn't always have different blood types, but they evolved over time in response to disease. The reason people have different blood groups is because they inherit the property of their blood to have certain antigens outside of their parents' blood cells.

What are the components of blood quizlet

Blood consists of plasma, red blood cells, white blood cells and platelets. Platelets play a role in clotting (the clotting process to stop bleeding from an open wound). White blood cells play an important role in the immune system. Red blood cells carry oxygen and carbon dioxide.

What is the largest component of blood?

Plasma. Plasma is the largest blood component and makes up about 55% of the total blood volume. It is a clear, straw-colored liquid containing platelets, erythrocytes, and leukocytes.

What is the composition and functions of blood?

Composition and function of blood Transport of nutrients, waste products, gases in blood (oxygen and carbon dioxide) or signaling molecules Immune function Maintains homeostasis of water, ions or pH. Heat distribution throughout the body. Blood clots. Viscosity is a quantity that characterizes the internal friction of a liquid.

What component of blood protects their body from infections?

• Neutrophils
• Eosinophils
• Lymphocytes
• Monocytes
• Basophils

What is the main purpose of the blood?

• Food transport:
• Transport of breathing gases:
• It acts as a vehicle:
• Waste water drainage:
• Blood clotting:
• Body Temperature Control:
• Security actions:
• Regulates Blood Pressure:

What is the purpose of blood in the human body?

In the human body, blood is a transport system. It allows the body to distribute important components such as nutrients and oxygen from central locations (lungs or small intestine) to every part of the body.