Cone-shaped elevations at the base of the follicle that fit into the hair bulb; papillae are filled with tissue that contains the blood vessels and cells needed for growth are known as what structure?

Cone-shaped elevations at the base of the follicle that fit into the hair bulb; papillae are filled with tissue that contains the blood vessels and cells needed for growth are known as what structure?

• A. Folliculitis
• B. Hair papillae
• C. Bulge
• D. Achard Thiers syndrome

Answer: (C)

The structure described is the bulge. A bulge is a cone‑shaped projection along the follicle that fits into the hair bulb, and it houses follicle stem cells important for renewal and growth. This distinguishes it from the dermal papilla (often just called the papilla), which sits at the base of the hair bulb and is rich in blood vessels and other cells needed to nourish and support hair formation. Folliculitis is simply inflammation of the follicle, not a structural feature, and Achard Thiers syndrome is a separate, unrelated condition. So the cone‑shaped elevation that interfaces with the hair bulb is the bulge.

The structure described is the bulge. A bulge is a cone‑shaped projection along the follicle that fits into the hair bulb, and it houses follicle stem cells important for renewal and growth. This distinguishes it from the dermal papilla (often just called the papilla), which sits at the base of the hair bulb and is rich in blood vessels and other cells needed to nourish and support hair formation. Folliculitis is simply inflammation of the follicle, not a structural feature, and Achard Thiers syndrome is a separate, unrelated condition. So the cone‑shaped elevation that interfaces with the hair bulb is the bulge.