What are the specialized structures required for hair growth called?

The specialized structures required for hair growth are called follicles. Hair follicles are complex, mini-organ structures in the skin that house the hair root. They are responsible for the growth, development, and regeneration of hair. Each follicle goes through cycles of growth and rest, which is essential for the normal hair growth process.

Follicles consist of multiple layers, including the outer root sheath, inner root sheath, and the hair bulb, where the actual hair growth takes place. The health and function of these follicles determine the quality and quantity of hair produced. Therefore, understanding the role of follicles is critical in topics related to hair growth and overall skin health.