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When an individual is exposed to extremely low air temperatures, the body initially responds by constricting blood vessels to conserve heat. However, prolonged exposure can lead to skin capillary dilation in an attempt to regulate temperature. This process allows blood to flow into the skin's capillary beds, which can increase heat loss and potentially lead to hypothermia if not managed properly. Hence, while it may seem counterintuitive, this response can be a mechanism for the body to adapt to extreme cold conditions.
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When an individual is exposed to extremely low air temperatures the capillaries of the skin will dilate so that blood will flush into skin capillary bed and heat will be dissipated?
No. That makes no sense. The body will try to conserve as much heat as possible and blood will be shunted to the core including the brain.
To what type of vessel does a capillary transport blood?
Capillaries are extremely small blood vessels. The capillaries transport blood from the arteries to the veins in the human body.
How thick is a capillary wall?
Capillaries are the smallest of all the blood vessels, they have extremely thin walls - just one cell thick. There are some spider-like cells (called pericytes) dotted along the outer wall of capillaries which help to stabilize them.
What is a cappillarie?
A capillary is an extremely small blood vessel located within the tissues of the body, that transports blood from arteries to veins. Capillaries are most abundant in tissues and organs that are metabolically active.
How is the wall of a capillary suited for the exchange of materials in tissues?
The wall of a capillary is extremely thin.
When an individual is exposed to extremely low air temperatures the vasculature of the skin will dilate so that blood will flush into skin capillary beds and heat will be dissipated?
False. When someone is exposed to low temperatures, the vasculature of the skin will constrict to conserve heat. When exposed to high temperatures, your vasculature will dilate to dissipate heat.
What blood vessel permits exchange of oxygen between the blood and the tissues?
capillaries are the site of exchange of materials where the needed substances in the tissue diffuse into them from the capillary through diffusion.while the metabolic wa ste from tissues diffuse into the capillary and taken away.the capillaries have a big surface area and their cells is one cell thick to enable diffusion to take place fast.
What is a canillaries?
Do you mean capillary? If so, a capillary is an extremely small blood vessel located within the tissues of the body.
Why are capillaries thick?
Capillaries are not thick. They are extremely thin. They are of approximately 5-20 micrometers in diameter. They are the thinnest blood vessels in the body
Are extremely thin tubes that can draw a film of water upward?
Capillaries
What is the narrowest type of blood vessel called?
Vessels with extremely thin walls over wich molecules and atoms are transported are called "capillaries".
What membrane is the extremely thin barrier between the alveoli and the capillaries?
respiratory membrane
