kapillaarvõrgust

Kapillaarvõrgust refers to the network of capillaries, the smallest blood vessels in the circulatory system. These tiny vessels are crucial for the exchange of oxygen, nutrients, and waste products between the blood and the body's tissues. The walls of capillaries are extremely thin, typically only one cell thick, which facilitates efficient diffusion. This intricate network permeates nearly every tissue and organ, ensuring that all cells receive the necessary resources and have their metabolic byproducts removed. The diameter of a capillary is so small that red blood cells often have to pass through in single file. This close proximity to individual cells maximizes the surface area available for exchange. The collective resistance of the capillary network also plays a significant role in regulating blood pressure and flow throughout the body. Disruptions to the capillary network, whether due to disease or injury, can have profound effects on tissue health and organ function, highlighting its vital importance in maintaining overall physiological homeostasis.