Kapillärfunktionen

Kapillärfunktion, also known as capillary function, refers to the role of capillaries in the circulatory system, which are the smallest and most numerous blood vessels. Capillaries are responsible for the exchange of oxygen, nutrients, and waste products between the blood and the surrounding tissues. This exchange occurs through a process called diffusion, where molecules move from an area of high concentration to an area of low concentration.

The structure of capillaries is crucial to their function. They have thin walls, typically only one cell layer thick, which allows for efficient diffusion. Additionally, capillaries have small diameters, which increases the surface area available for exchange. The thin walls and small diameter also allow for the filtration of blood, which is essential for the removal of waste products and the maintenance of fluid balance.

Capillaries are found throughout the body, with the highest density in highly active tissues such as muscles and the brain. This high density ensures that these tissues receive an adequate supply of oxygen and nutrients, and that waste products are efficiently removed.

The function of capillaries is vital for maintaining homeostasis, the body's internal balance. Disruptions in capillary function can lead to various health issues, including edema (swelling), tissue hypoxia (low oxygen levels), and impaired wound healing. Therefore, understanding and maintaining the health of capillaries is essential for overall health and well-being.