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In hot weather - blood vessels dilate (widen) - to allow the exchange of heat between the blood and sweat glands. The sweat evaporates - cooling the blood.

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How do the heart and blood vessels maintain a stable body temperature in hot and cold weather?

During warmer weather, the blood vessels at the surface of the skin dilate. At the same time, our skin produces sweat, which evaporates - taking the excess heat into the atmosphere.


When weather is hot blood vessels in the skin?

When the weather is hot, blood vessels in the skin dilate, a process known as vasodilation. This allows for increased blood flow to the skin's surface, facilitating heat dissipation through radiation and convection. As a result, the body cools down more effectively, helping to regulate internal temperature. Additionally, this process can cause the skin to appear flushed or reddened.


Do blood vessels in your ears dilate in cold weather?

No


How do the heart and blood vessels maintain a stable body temperature in hot and cold?

During warmer weather, the blood vessels at the surface of the skin dilate. At the same time, our skin produces sweat, which evaporates - taking the excess heat into the atmosphere.


Can hot weather make your nose bleed?

Due to dry climate or environment,your nasal membranes dry out and crack which results to bleeding. Ok there you go. I hope I answered your question.


When you are hot what do your vessels do to increase blood flow and reduce heat?

The blood vessels near the skin enlarge so that the hot blood is nearer the surface of the skin to transfer heat away from the body.


Do your fingers swell in cold weather?

Yes, fingers can swell in cold weather due to reduced blood flow and constriction of blood vessels.


What is homonym of vein?

Another name for vein is blood vessel.


What causes your skin to turn pink when you are hot?

When you get hot, your blood flow increases and your blood vessels also get closer to the surface of your skin to allow the air to help you cool down. That is why your skin appears pink; your blood is closer to the surface.


Blood vessels help regulate your body's temperature when it's hot your blood vessels do what to increase blood flow and release heat?

Blood vessels dialate (open more) and the heart rate increases to dissipate body heat. In cold temps such as hypothermia, the blood vessels constrict and the heart rate lowers. Extremehypothermia or hyperthermia are both life-threatening.


When the temperature increases. what does the brain do to try to maintain a constant temperature?

In hot weather the brain causers the vessels to move close to the surface and dilate. In cold weather it causes the vessels to move away from the surface and contract.


What Of the blood vessels?

Blood Vessels-are the passageway of blood.