Question

33 відсотки усієї крові організму міститься у легеневих капілярах . Чому? Яке це має фізіологічне значення ?

Answer 1

Це допомагає швидче переносити кисень по організму.

 

Answer 2

33% of the body's blood is contained in the pulmonary capillaries. This is because the pulmonary capillaries are responsible for the exchange of oxygen and carbon dioxide in the lungs. When blood reaches the lungs, it needs to be oxygenated and rid of carbon dioxide before it can be transported back to the rest of the body. The extensive network of pulmonary capillaries allows for efficient gas exchange to take place.

The physiological significance of having a large amount of blood in the pulmonary capillaries is that it ensures an adequate supply of oxygen to the body's tissues. Oxygen is necessary for cellular respiration, which is the process by which cells produce energy. By having a significant portion of the blood in the pulmonary capillaries, the body can efficiently oxygenate the blood before it is distributed to the rest of the body.

Additionally, the large amount of blood in the pulmonary capillaries helps to maintain the balance of gases in the body. The exchange of oxygen and carbon dioxide in the lungs ensures that the body gets rid of carbon dioxide, a waste product of cellular metabolism, and takes in fresh oxygen. This process is essential for maintaining the body's pH balance and preventing the buildup of carbon dioxide, which can be harmful if it accumulates in high concentrations.

In summary, the reason why 33% of the body's blood is contained in the pulmonary capillaries is because these capillaries are responsible for oxygenating the blood and removing carbon dioxide. This ensures an adequate supply of oxygen to the body's tissues and helps maintain the balance of gases in the body.