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blood vessels. doppus
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∙ 14y ago
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Do blood vessels in your ears dilate in cold weather?
No
What do your blood vesseles do when your body temperature rises rises?
The blood vessels dilate.
What make blood vessels constrict and dilate?
Nothing, blood vessels are nothing because they wont harm you or anything like that.
Does histamine cause blood vessels to contract?
No it causes them to dilate (vasodilation)
If a person becomes too warm what do blood vessels in the skin do?
Dilate.
Why do blood vessels dilate when exercising?
Blood vesseld will dilate to allow an increased blood flow to the working muscels and therefore providing more Oxygen.
Is epithelium a tissue?
No epithelium is a cell mainly present in blood vessels wall.which liberate nitric oxide to dilate the blood vessels .
What neurotransmitters is released by active neurons to dilate the blood vessels and increase blood flow?
acetylcholine
If the blood vessels of the skin dilate the person appears?
When shock results from excessive dilation of blood vessels, the skin may be warm and flushed.
Does Prostaglandins produced in the kidneys cause renal blood vessels to dilate?
yes
What Chemical that causes local blood vessels to dilate?
This substance is called histamine.
Why does the face reddens when blood vessels dilate?
Many small blood vessels in your face are close to the surface. When they dilate or expand, the result is increased blood flow which can cause the red appearance, especially if you have pale skin. Generally this redness goes away when the vessels return to their normal size and the blood flow is again reduced.
