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It raises the hairs to give you goose bumps
but it gives you goose bumps because you're cold but also it raises your hair when you're frightened
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∙ 14y ago
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What is pili pili?
An arrector pili is any of a group of small muscles attached to hair follicles in mammals, the contraction of which causes the hairs to stand on end.
Specialized structures that respond to environmental stimuli?
the arrector pili
What are the smooth muscle cells that stand hairs on end in response to cold known as?
Arrector Pili Muscle
Can you make the hairs on your arm stand on end?
Standing hair is caused by the tiny muscle that connects the hair to the follicle. This muscle is called the arrector pili.
Which structure is innervated only by the sympathetic division of the ANS?
Many blood vessels, sweat glands in the trunk, arrector pili in the skin, adrenal medulla
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.
What is a bundle of smooth muscle cells attached to hair follicles?
arrector pili.
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 voluntary or involuntary?
involuntary
What muscle moves your hair?
arrector pili
What kind of muscle can move a hair?
arrector pili
Where are arrector pili's located?
Within the hair follicles.
What make your hair stand on end?
Arrector Pili Muscle
When arrector pili muscles contract?
''goose bumps'' are formed
Contraction of the arrector pili would be sensed by?
hair follicles
What structure pulls the hair into an upright position?
arrector pili
What muscle cause goose bump?
The Arrector Pili muscle
