American Academy of Professional Coders (AAPC) Practice Exam 2026 - Free AAPC Practice Questions and Exam Prep Guide

Question: 1 / 490

What are follicles essential for?

Skin hydration

Hair growth

Follicles are specialized structures within the skin that serve as the growth sites for hair. Each hair follicle is a mini-organ that goes through distinct phases, including growth (anagen), regression (catagen), and resting (telogen). They play a crucial role in the overall hair growth process, including the formation and cycling of hair strands.

While other options relate to skin and health, they do not pertain directly to the primary function of follicles. Skin hydration is influenced by other mechanisms like sebaceous glands, nail strength is associated with the composition and health of the nails themselves rather than follicles, and blood supply is maintained by a network of blood vessels that nourish the skin and its appendages, not directly by the follicles. Thus, the role of follicles is specifically tied to hair growth, underscoring their essential function in this process.

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Nail strength

Blood supply

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