háræðakerfa
Háræðakerfa refers to the smallest blood vessels in the body, forming a network that connects arterioles and venules. These microscopic vessels are crucial for the exchange of oxygen, nutrients, carbon dioxide, and waste products between the bloodstream and the body's tissues. The walls of háræðakerfa are extremely thin, typically consisting of a single layer of endothelial cells, which facilitates efficient diffusion.
There are three main types of háræðakerfa: continuous, fenestrated, and sinusoidal. Continuous háræðakerfa are the most
The collective resistance of the háræðakerfa network is high, leading to a significant drop in blood pressure