Question

Роль посредника между кровью и клеток тела человека выполняет

Answer 1

Роль посредника между кровью и клеток тела человека выполняет
тканевая жидкость

Answer 2

The Role of Mediators Between Blood and Cells in the Human Body

In the human body, the role of mediators between blood and cells is crucial for maintaining proper functioning and communication between different parts of the body. These mediators help transport essential substances, such as oxygen, nutrients, hormones, and waste products, between the blood and cells.

One important mediator between blood and cells is the circulatory system, which consists of the heart, blood vessels, and blood. The circulatory system carries oxygenated blood from the lungs to the cells and returns deoxygenated blood back to the lungs for oxygenation. This process ensures that cells receive the necessary oxygen and nutrients for their metabolic activities and removes waste products from the cells.

Another mediator between blood and cells is the plasma, which is the liquid component of blood. Plasma contains various substances, including water, electrolytes, proteins, hormones, and waste products. It acts as a transport medium, carrying these substances to and from the cells. For example, plasma transports oxygen from the lungs to the cells and carbon dioxide from the cells to the lungs for elimination.

Red blood cells (erythrocytes) are another important mediator between blood and cells. They contain a protein called hemoglobin, which binds to oxygen in the lungs and carries it to the cells. Red blood cells also help remove carbon dioxide, a waste product of cellular metabolism, from the cells and transport it to the lungs for elimination.

White blood cells (leukocytes) play a crucial role in the immune system and act as mediators between blood and cells in fighting infections and diseases. They help identify and destroy pathogens, such as bacteria and viruses, that may enter the body. White blood cells also play a role in repairing damaged tissues and promoting healing.

Platelets (thrombocytes) are small cell fragments that play a vital role in blood clotting. When a blood vessel is damaged, platelets adhere to the site of injury and form a plug to prevent excessive bleeding. They also release substances that promote the formation of a blood clot, which helps seal the wound and initiate the healing process.

In summary, the mediators between blood and cells, such as the circulatory system, plasma, red blood cells, white blood cells, and platelets, are essential for maintaining proper communication and transport of substances between the blood and cells in the human body.