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Capillaries
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∙ 11y ago
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What make blood vessels constrict and dilate?
Nothing, blood vessels are nothing because they wont harm you or anything like that.
What is the opposite of constrict?
dilate
Can fear cause pupils to constrict?
It causes them to dilate not constrict.
What does the term elastic mean pertaining to arteries?
The term Elastic Arteries usually refers to the ability of blood vessels to dilate and constrict freely.
What happens to blood vessels in the skin when the body temperature gets too high?
When body temperature drops below normal, dermal vessels are likely to constrict to maintain core body temperature, limiting heat loss through the skin. In contrast, when body temperature is elevated, the vessels in the dermis are likely to dilate to help the body release excess heat.
What is it called when a person's pupils no longer dilate from the light?
Pupils don't dilate from light, the constrict. They dilate in the dark, to take in more light, and constrict in the light so your eyes don't get damaged. Hallucinogenics, stimulants and alcohol and make your pupils dilate and opiates and diazepam can make them constrict. Im not sure what that's called though..
Why does the veins constrict and dilate during exercise?
Almost all the veins and arteries constrict and dilate during heavy exercise. Even capillaries bring a flush to the face and skin by dilation.
Can the first time marijuana smoker has his blood vessels constricted?
Quite the contrary actually. Smoking will raise blood pressure and dilate vessels. Hope this helps!
Does adrenaline constrict pupils of the eyes?
dilates them
What kind of tissue enables the blood vessels to stretch?
Blood vessels are surrounded by very small circular muscles which contract and relax to allow blood vessels to constrict and dilate. The vessels also contain elastin which allows them to stretch.
What will dilate blood vessels?
blood vessels. doppus
Why do narcotics make pupils constrict?
They don't, narcotics make your pupils dilate.
