Question

The end of the arteries where they become microscopic and the walls become very thin, allowing the exchange of food and waste to take place. This is called _______.

A. Veins
B. Arteries
C. capillaries perfusion

Answer 1

Capillaries are the small, thin-walled blood vessels that allow for the exchange of nutrients, waste, and oxygen at the cellular level. They connect arterioles and venules and form capillary beds for perfusion.

Step-by-step explanation:

Capillaries are the small, thin-walled blood vessels that connect arterioles and venules, allowing for the exchange of nutrients, waste, and oxygen with tissues at the cellular level. They are the sites for perfusion, the process of supplying blood to the tissues. Capillaries form a branching network called a capillary bed that provides a large surface area for exchange.