what is capillaries? please help mi
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7
Capillaries are the smallest blood vessels. They are unique in that:
They don't have any muscular component like arterioles or venules do.They are lined by a single layer of endothelium (cells lining blood vessels are called endothelial cells) overlying the basement membrane.
Due to these reasons the capillaries are very permeable facilitating nutrient and gas exchange.
The capillaries don't expand as they do not have muscular or elastic components. However exposure to heat do increase the circulation. This is due to the following facts:
Exposure to heat dilates the pre-capillary arterioles - this would inevitably cause improved capillary circulation in capillaries that are already open.Increase in pre-capillary flow opens up collapsed capillaries. In the human body roughly only one-fourth of the capillaries are open during rest1. As the pre-capillary arterioles dilate, the collapsed capillaries open up thus further improving circulation.
To improve capillary perfusion
I hope it's help U..:-)
They don't have any muscular component like arterioles or venules do.They are lined by a single layer of endothelium (cells lining blood vessels are called endothelial cells) overlying the basement membrane.
Due to these reasons the capillaries are very permeable facilitating nutrient and gas exchange.
The capillaries don't expand as they do not have muscular or elastic components. However exposure to heat do increase the circulation. This is due to the following facts:
Exposure to heat dilates the pre-capillary arterioles - this would inevitably cause improved capillary circulation in capillaries that are already open.Increase in pre-capillary flow opens up collapsed capillaries. In the human body roughly only one-fourth of the capillaries are open during rest1. As the pre-capillary arterioles dilate, the collapsed capillaries open up thus further improving circulation.
To improve capillary perfusion
I hope it's help U..:-)
nikitapadalwar:
and we both r not of same age
ho ...
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mi just 10th zalyavr log in kela
tu brainly app kadhi ghetala ?
mi pan 8th lach log in kelay
pn mi 10th zalyavr ghetlay
mla 8th la astana mhit pn navta brainly baddal
mala pan aadhi mahit navat ...
hmm
Answered by
8
Capillaries: Capillaries are the smallest of blood vessels. They serve to distribute oxygenated blood from arteries to the tissues of the body and to feed deoxygenated blood from the tissues back into the veins.
hello dear
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