Which term refers to the enlarged base of the root?

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Multiple Choice

Which term refers to the enlarged base of the root?

Explanation:
In hair anatomy, growth happens at the bulb, the enlarged bottom of the hair root inside the follicle. The bulb is rounded and houses actively dividing matrix cells that form new keratin, along with the dermal papilla that provides nutrients and signals for growth. That combination makes the bulb the correct term for the enlarged base of the root. The shaft is the part that extends above the skin, and vellus hair is a type of fine hair rather than a part of the root structure.

In hair anatomy, growth happens at the bulb, the enlarged bottom of the hair root inside the follicle. The bulb is rounded and houses actively dividing matrix cells that form new keratin, along with the dermal papilla that provides nutrients and signals for growth. That combination makes the bulb the correct term for the enlarged base of the root. The shaft is the part that extends above the skin, and vellus hair is a type of fine hair rather than a part of the root structure.

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