The main components of blood are:

Blood is mainly made up of plasma, blood cells, and the invisible components of blood are called plasma. The yellow liquid component in the blood accounts for about 55% to 60% of the total amount of blood, about 90% to 92% of the water in the plasma, 7% of the total protein in the blood, and inorganic salts. There are also some non-protein organic substances, including urea, uric acid, creatine, creatinine, glucose, lipids, hormones, immune antibodies, vitamins, etc., as well as oxygen and carbon dioxide, which are about the majority.

The tangible component is called blood cells, which make up about 40 to 45 percent of the total volume of blood and mainly includes red blood cells, white blood cells, and platelets.

Blood is made up of red blood cells, white blood cells, platelets and plasma.

The main components are plasma, blood cells, and genetic material.

One liter of plasma contains 900-910 grams of water, 65-85 grams of protein, and 20 grams of low-molecular-weight substances. Low molecular weight substances contain many electrolytes and organic compounds. Blood cells include red blood cells, white blood cells, and platelets.

The average lifespan of red blood cells is 120 days, the average lifespan of white blood cells is 9-13 days, and the average lifespan of platelets is 8-9 days. Normally, 40 milliliters of blood cells die from aging per person per day.

The main components are plasma, blood cells, and genetic material. It is a special type of connective tissue, the hierarchy of tissues in the living system. Blood contains various nutrients such as inorganic salts, oxygen, cellular metabolites, hormones, enzymes, and antibodies.

It has the functions of nutrient tissue, regulating activity and defense against harmful substances. Blood stores human health information, and many diseases require blood testing. Including genetic disorders.

Answer]: c, d

This question tests the understanding of the production of blood. The spleen and stomach absorb the food and drink to dig the water valley, which absorbs the subtle substances in it, and the water valley subtly transforms into camp qi and jin liquid, and scatters the lead into the veins, and through the gasification of the heart and lungs, it changes into red blood. Therefore, the camp qi and jin liquid generated by the essence of Mizutani are the main material basis for metamorphosis of blood, and they are also the main components of blood.

Categories: Medical & Health >> Internal Medicine.

Problem description: The relationship between serum, plasma, blood cells.

Analysis: Blood is composed of blood cells and plasma, which is collectively referred to as all-out blood. Blood cells are suspended in plasma and include red blood cells, white blood cells, and platelets.

3. The concept of hematocrit.

Hematocrit refers to the percentage of blood cells in the volume of the blood, also known as hematocrit. Normal adult males are 40% to 50% and females are 37% to 48%.It reflects changes in the relative number of red blood cells and plasma in the blood.

Fourth, the concept of plasma and serum.

Plasma is the extracellular fluid of blood cells and is an important part of the body's internal environment. Centrifugation at 3000 revolutions per minute for half an hour separates plasma and blood cells. The upper layer of pale yellow transparent liquid is plasma, and the lower layer is deeply medicated.

The original red color is opaque blood cells.

After natural coagulation of the blood for 1 2 hours, the blood clot retracts and precipitates a light yellow transparent liquid, that is, serum.

5. Plasma osmolality and physiological effects.

Plasma osmolality refers to the force of colloidal solutes and crystal solutes in plasma to attract water molecules through the biosemipermeable membrane. In the human body, the permeability of the cell membrane and capillary wall of the plasma to solute particles is different, and the plasma osmotic pressure exhibited by the plasma has different physiological effects.

a) Plasma crystals are disordered and dry.

The osmotic pressure of the crystal, which is formed by ions and small crystalline substances, such as inorganic salts, glucose, urea and other crystalline substances, is 720 797kPa, which is almost approximate to the osmotic pressure of plasma. The osmolality of the solution or 5% glucose solution is similar to the osmolality of the plasma and is called an isotonic solution.

Plasma crystal osmotic pressure plays an important role in maintaining the normal exchange and distribution of intracellular and external water, and maintaining the normal morphology of red blood cells. When the osmotic pressure of plasma crystals decreases, the amount of water entering the red blood cell seminerate increases, resulting in red fine medical education, reticulocyte expansion, membrane rupture, hemoglobin escaping and hemolysis. When the osmolality of plasma crystals increases, water exudes from red blood cells, causing red blood cells to shrink.

2) Plasma colloidal osmolality.

The colloidal osmotic pressure formed by macromolecular colloidal substances such as plasma proteins accounts for a small amount of the entire plasma osmolality, which is about.

Plasma colloidal osmotic pressure plays an important role in regulating the normal distribution of water inside and outside the capillaries, and promoting the infiltration of water into the capillaries in tissues to maintain plasma volume. When plasma proteins decrease, plasma colloidal osmotic pressure medicine. When the original is reduced, the interstitial fluid increases, causing edema.

Blood is an opaque red liquid that flows through the heart and blood vessels, and is mainly composed of plasma, blood cells, and platelets. Blood cells are further divided into red blood cells and white blood cells. Blood contains various nutrients, such as inorganic salts, oxygen, metabolites, hormones, enzymes and antibodies, etc., which have the role of nourishing tissues, regulating organ activity and defending against harmful substances.

Physiological and pathological changes in various organs of the human body often cause changes in blood composition, so it is often necessary to diagnose diseases through blood tests after illness.

Blood is made up of four components: plasma, red blood cells, white blood cells, and platelets. Plasma makes up about 55% of blood and is a mixture of water, sugar, fat, protein, potassium and calcium salts.

It also contains many of the chemicals necessary for blood clot formation to stop bleeding. Blood cells and platelets make up the other 45% of blood

There are two types of blood cells: red blood cells and white blood cells. Red blood cells make up the majority, look like concave rings, can't move around, and it doesn't have a nucleus.

Red blood cells contain a special iron-containing protein called hemoglobin, which makes red blood cells appear red, and it can carry and absorb oxygen from the lungs throughout the body, concentrating carbon dioxide from the whole body to the lungs. Although blood contains many non-red blood cell components, the number of red blood cells is so large that the blood itself appears red.

White blood cells are round, have a nucleus, are much larger than red blood cells, and produce proteins called antibodies that help the body fight infections caused by bacteria, viruses, and foreign substances.

Platelets are not actually cells, they are just fragments of cells, they do not have a nucleus. When we have an injury, the platelets collect and stick around the wound, producing chemicals that start the clotting mechanism, and the blood stops.