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.
exchange of nutrients and gasses with tissues
Capillaries allow for gas exchange in the body.
exchange of nutrients and gasses with tissues
exchange of nutrients and gasses with tissues
Increase permeability
Alveoli exchange Oxygen with blood in capillaries
to move nutrients to the individual cells of the body
The cells lining the brain's tiny blood vessels (capillaries) are specifically designed to prevent many substances from passing into brain tissue.
arterioles
continuous capillaries continuous capillaries
Capillaries are very thin and form almost web like structures. Because of how thin they are, they have a favorable surface area to volume ratio. Capillaries increase the surface area available for gas to diffuse into the blood. More suface area leads to more gas exchange.
The lymphatic capillaries are small, thin-walled vessels that collect excess tissue fluid (lymph) from the interstitial spaces and return it to the bloodstream. This helps maintain fluid balance in the body and plays a crucial role in the immune system by transporting immune cells and proteins.
Capillaries work in the same way as vessels and veins but they also help by receiving food molecules from the small intestine. And also if a vessel or vein get damaged, they can divert blood away from the injury to reduce blood loss.
Capillaries The smallest of the blood vessels: capillaries.