The arrector pili muscle is O A a muscle that can be voluntarily controlled, resulting in...

 

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The arrector pili muscle is O A a muscle that can be voluntarily controlled, resulting in "goose bumps" O B. a muscle attached to hear follicles that is controlled by the endocrine system (hormones), and therefore under involuntary control a bundle of striated muscle fibers that can erect hair follicles when contracted, resulting in "goose bumps" O D. a muscle that can contract and force the content of sebaceous glands into hair follicles, and is made of smooth muscle cells The arrector pili muscle is O A a muscle that can be voluntarily controlled, resulting in "goose bumps" O B. a muscle attached to hear follicles that is controlled by the endocrine system (hormones), and therefore under involuntary control a bundle of striated muscle fibers that can erect hair follicles when contracted, resulting in "goose bumps" O D. a muscle that can contract and force the content of sebaceous glands into hair follicles, and is made of smooth muscle cells

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Arrector pili muscles are made up of smooth muscle fibres not striated and henc... View the full answer