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they have a lot of jobs to do

  • a high surface area to volume ratio, having walls only one cell thick only wide enough for red blood cells to travel single file - this maximizes exchange rate of substances into and out of capillaries
  • lots of tiny vessels all around the body to ensure most efficient exchange of nutrients, oxygen, wastes etc. - body builders and very muscular people can develop more capillaries than non-athletic people because they need more nutrients and waste removal for their numerous muscle cells
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Related Questions

What blood vessels permit the exchange of nutrients and gases between blood and tissue?

Capillaries


What is the role the capillaries?

exchange of nutrients and gasses with tissues


What is role of capillaries?

exchange of nutrients and gasses with tissues


Exchange of nutrients and gases between the blood and tissue cells?

This process occurs through the capillaries. Nutrients and oxygen diffuse from the blood into the tissues, while waste products and carbon dioxide diffuse from the tissues into the blood. This exchange is facilitated by the thin walls of the capillaries and the high surface area for diffusion.


The velocity of blood is slowest in the?

The velocity of blood is slowest in the capillaries. This allows for maximum exchange of nutrients, gases, and wastes between the blood and the surrounding tissues.


What vessels are known as exchange vessels?

Capillaries are known as exchange vessels. Capillaries are the smallest of vessels and allow nutrients and waste to pass through blood and body.


What is the role of the capillaries?

Capillaries are very small blood vessels found within the tissues of the body. Its primary role is to transport blood from arteries to the veins.


What are tiny blood vessels are composed of a single layer of epithelium and therefore function as exchange vessels?

Blood capillaries


Exchange of gases and nutrients occurs by diffusion between the?

capillaries and tissue cells


What are the main responsibility of the capillaries?

To exchange oxygen and nutrients between arterioles and venules


Where does the exchange of oxygen waste and nutrients occur?

Lymph vessels


What are tiny blood vessels called?

Tiny blood vessels are called capillaries. They have thin walls that allow for the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues.