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What else can I help you with?
When arrector pili muscles contract?
''goose bumps'' are formed
Smooth muscles that produce goose pimples when they contract are the?
Arrector pili muscles
In order to warm the body up when cold?
the arrector pili muscles contract to stand hairs upright
Do Arrector pili attach directly to hairs in the dermis?
No, they attach to the outside of the hair follicle.
What are the muscles that cause the hair to raise when stimulated?
Arrector pili is the muscle the raises hair. This is taught in health class.
Is arrector pili muscles associated with hair follicles?
Yes, arrector pili muscles are associated with hair follicles. Arrector pili muscles are in the skin, connected to the hair follicles. Their job is to help maintain body homeostasis. When we are cold, the arrector pili muscles shorten, causing our hairs to stand up so that they block the cold and help keep heat from escaping. Although this is not very effective in humans because evolution has made us less hairy, this is great method for hairy animals to stay warm. Now you know why we get "goosebumps" when we are cold! :)
What muscle that causes a goose bump?
Goosebumps are caused by little muscles called the arrectores pilorum (the hair erector muscles). Contraction of these muscles elevates the hair follicles above the rest of the skin. And it is these tiny elevations we perceive as goose bumps. Source: http://www.medicinenet.com/script/main/art.asp?articlekey=6842
What is the functional relationship of arrector pili muscles and to the hair bulb?
When we are cold, the arrector pili muscles contract and pull on the hair bulb, standing the hair in a more erect position. This was an evolutionary response to allow the hair to trap more air and thus give us a better insulation factor. Unfortunately, with our "skimpy fur" this really does not do much good. What we see are little bumps on our skin where the arrector pili muscles have contracted. We call those little bumps, "goose bumps".
What are a bundle of smooth muscles associated with hair follicles called?
arrector pili.
Is it true that the arrector pili are tiny muscles that cause the hair to stand erect?
no
Are arrector pili and epidermis related?
The arrector pili and epidermis are related only in that the action of the arrector pili causes "goosebumps" to form at the epidermis.
Tiny muscles attached to hair follicles that pull the hair upright during fright or cold?
The muscles are called arrector pili and they pull the hair upright for both of those reasons and a few others.. let me know if you want to know more :)
