NEET PG DENTAL EXAM

Detailed explanation-1: -The hair bulb is the only site of pigment production for the hair shaft; it contains highly melanogenic melanocytes and a minor sub-population of poorly differentiated pigment cells (Tobin and Bystryn, 1996).

Detailed explanation-2: -Cortex (See #10 on image) is the second layer making up most of the hair shaft.

Detailed explanation-3: -Hair color is determined by the amount of a pigment called melanin in hair. An abundance of one type of melanin, called eumelanin, gives people black or brown hair. An abundance of another pigment, called pheomelanin, gives people red hair. The type and amount of melanin determines hair color.