A tube-like structure in the skin or scalp that surrounds the hair root and anchors the hair in the skin is the

A tube-like structure in the skin or scalp that surrounds the hair root and anchors the hair in the skin is the

• A. Pilosebaceous Unit
• B. Terminal Hair
• C. Melanin
• D. Hair Follicle

Answer: (D)

The hair follicle is the tube-like structure in the skin that surrounds the hair root and anchors the hair in place. It stretches from the skin surface down into the dermis, providing the pathway for the hair shaft to grow out through the pore. The hair root sits inside this follicle, and its deepest part, the dermal papilla, supplies the nutrients that enable growth. The term pilosebaceous unit describes the broader complex that includes the follicle plus the sebaceous gland and arrector pili muscle, which is why this more expansive term isn’t as precise for identifying the tube itself. Melanin is the pigment that colors the hair, and terminal hair refers to a thick, long type of hair rather than the structure that contains and anchors it.

The hair follicle is the tube-like structure in the skin that surrounds the hair root and anchors the hair in place. It stretches from the skin surface down into the dermis, providing the pathway for the hair shaft to grow out through the pore. The hair root sits inside this follicle, and its deepest part, the dermal papilla, supplies the nutrients that enable growth. The term pilosebaceous unit describes the broader complex that includes the follicle plus the sebaceous gland and arrector pili muscle, which is why this more expansive term isn’t as precise for identifying the tube itself. Melanin is the pigment that colors the hair, and terminal hair refers to a thick, long type of hair rather than the structure that contains and anchors it.