Red blood cells physiology | Easy to understand | Red blood cells notes

Red blood cells physiology  Easy to understand  Red blood cells notes

INTRO

In the blood of the element in the blood of the elements) is a non-nuclear-shaped blood elements.

In the blood of the element, which is also known that in the blood of the elements (erythros = red). The red color of the red blood cells due to the presence of a color pigment called haemoglobin. RBC-air transport of gases, are playing a major role. 

The number of red blood cells compared to the other two cells, i.e., white blood cells, and platelets in the blood. 

NORMALLY, THE WORTH OF THE 

The number of red blood cells, ranges from 4 to 5.5 million per cubic mm of blood. For men, there are 5 million cubic metre, etc., and, for the adults, for females and 4.5 million cubic meters, etc 

THE MORPHOLOGY OF THE RED BLOOD CELL COUNT 

THE NORMAL FORM OF 

As a rule, the RBCS are in the shape of a disc, and a biconcave shape (weights). The central part is thin, and the periphery of the experience. The biconcave RBCS module has some of the mechanical and functional benefits. 

The benefits of the biconcave RBCS form 

1. The biconcave shape promoting a consistent and rapid diffusion of oxygen and other substances within the cell. 

2. The large surface area to absorb and remove a variety of topics. 

3. Minimal stress on the membrane when the cell is about to change the volume. 

4. As the biconcave shape, which passes through the small, the young, the blood of the parts are very easy to squeeze his way through to the young people, without being damaged. 

THE PROPERTIES OF THE RED BLOOD CELL 

FORM A ROLL 

When the blood is drawn from a vein, RBCS to be collected, one above the other, like a lot of money. This property is in the red blood cells, which is known as the rouleau formation (pleural = rouleau). It includes a plasma protein-binding globulin, and fibrinogen. 

SPECIFIC GRAVITY 

The specific gravity of the RBCS is 1.092-to 1.101.

The volume of the Filled-in cells (PCV) is the component of blood that is provided by the red blood cells, expressed as a percentage. It is also called hematocrit value. It is up 45% of the blood volume, and 55% of the plasma volume. 

END RESISTANCE 

During the circulation of the blood, the elements are still together, suspended in the blood. This is a property of the RBCS is called the suspension stability. 

THE EXPECTED LIFE SPAN OF THE RED BLOOD CELLS 

On average, the RBCS life span is about 120 days. Life after your (old) RBCS are destroyed in the reticuloendothelial system.

THE FATE OF THE RED BLOOD CELL 

As your skin ages (120 days or less), then the membrane will become more fragile. The Diameter of the kapilyarların the function is less than or equal to the diameter of a RBC. 

More and more young blood in the elements, it is easy to pass, the young fellow. However, the fragile nature of the old cells are destroyed when they are trying to push through to young people. 

The destruction occurs predominantly in the capillaries, the red, the teeth of the spleen, as the diameter of the splenic kapilyarların features and functions are very small. Then, the spleen is known as the 'graveyard of red blood cells'. 

The blood, the parts were damaged or destroyed in the process of the fragmentation and the fragmentation of the parts of the skeleton.

The Hemoglobin immediately phagocytosed by the body's macrophages and, in particular, the macrophages found in the liver (Kupffer cells), spleen, and bone marrow. 

THE DIFFERENCES IN THE NUMBER OF RED BLOOD CELLS 

PHYSIOLOGICAL CHANGES 

To increase the number of RBC

An increase in the number of red blood cells is known as polycythemia. This occurs in both physiological and pathological situations. At the same time, in physiological conditions, this is called physiologic polycythemia. 

The increase in the number of this is a small and temporary in nature. 

This is subject to the following terms and conditions: 

1. Age 

The birth of the amount of RBCS is between 8 and 10 million / cubic mm) of blood. The numbers are reduced to 10 days after birth, due to the destruction of red blood cells, which causes a physiological jaundice of the newborn. But a child, and growing up as a child, have more cells than that of an adult. 

2. Sex 

Prior to the onset of puberty and after the menopause in women, the amount of RBCS is similar to that of the men. In the reproductive period of women, this indicator is in the lower, while the 4.5 million per cubic mm). 

3. Height 

The Mountain, the inhabitants (more than 10,000 meters from the mean sea level has been an increase in the RBCS of numbers to more than 7 million cubic metres a year. in the context of a lack of oxygen (reduction of the tissue with oxygen at high altitude. Hypoxia stimulates the kidneys to release a hormone called erythropoietin. 

4. Muscles exercises 

After the training, there is a temporary increase in the number of RBC's. It is easy to us and to the reduction of the spleen. The spleen remains the RBC. Hypoxia increases sympathetic activity, which leads to a release of adrenaline in the brain, and the adrenal glands. Epinephrine decreases the spleen, and the RBCS of the levels in the blood. 

5. Emotional state 

The number of red blood cells, increase in emotional states such as anxiety. This has resulted in an increase in the symmetric case, the activity, and muscular action.

B. a Decrease in the number of RBCS 

A decrease in the number of red blood cells is carried out according to the following physiological activities, which include:: 

1. High pressure 

At high pressures, that is, a deep lake, where the oxygen tension in the blood is higher, and the number of red blood cells is reduced. 

2. In my sleep 

The number of red blood cells, decreasing slightly in her sleep and immediately after waking up. In general, all of the actions of the body are reduced in.

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