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This is a process known as vasodilation, which takes place if your core body temperature gets too high. The capillaries just below the epidermis dilate to allow more blood to reach the surface of the skin. The blood carries with it thermal energy, which is then lost by radiation upon reaching the surface.
What else can I help you with?
Does close circulatory systems have blood that does not flow in defined blood vessels?
no it doesnt
Which blood vessels are in close contact with body cells?
capillaries
How does your pulse beat?
When the heart beats it causes blood to flow through the blood vessels which causes them to expand. This expansion can be felt by touching the vessels that are close to the skin.
Can you explain why I can see blood vessels in my vision?
You can see blood vessels in your vision because the blood vessels in your eyes are close to the surface and can sometimes cast shadows on the retina, which is the light-sensitive tissue at the back of your eye. This can make the blood vessels appear as dark lines or spots in your field of vision.
What part of a blood vessel closes the wound?
Blood vessels don't close off wounds. Parts of the blood(platelets) clot and close off wounds.
Why are leydig cells located close to the capillaries?
because they are hormone-secreting and so they have to be in close contact with blood vessels
What is the function of the blood platelets?
Platelets help close breaks in damaged blood vessels and initiate formation of blood clots.
What difference between open and close circulatory system?
In closed circulation blood flows through blood vessels as in human beings. But in certain animals as insects blood flows in open spaces without blood vessels.
What are platelets and what is its function?
Platelets are nuclear cells rotates the blood and get rid of blood clots.they release protein , and close up the tear in the blood vessels..
What would be one effect of the dilation of the small blood vessels in the skin?
When blood vessels dilate so close to the skin, it would cause an outward appearance of flush on the skin. Blushing, for example.
Why do carcinoma spread by lymphatics and sarcoma by blood?
it is because , the sarcomas live in close association with blood vessels ,as they are the tumors arising in soft tissue which is rich has rich network of blood vessels, and also added to this sarcomas unlike carcinomas secrete factors which result in angiogenesis. in point of being close to blood vessel good example in renal cell carcinoma lying close to renal vein spreads through blood
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.
