What Happens When an Arrector Pili Muscle Contracts

question 118

Multiple Choice

What happens when an arrector pili muscle contracts?

• A)The hair falls out of the hair bulb.
• B)The hair grows approximately 0.33mm.
• C)The sebaceous gland secretes oil onto the surface of the hair.
• D)The sweat gland secretes sweat out of the pores next to the hair.
• E)The hair follicle becomes erect,producing "goose bumps."

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