What term refers to the thickened area of skin where hair emerges from the follicle?

The term that refers to the thickened area of skin where hair emerges from the follicle is known as the hair bulb. The hair bulb is located at the base of the hair follicle and is crucial for hair growth. It contains living cells that divide and grow, contributing to the formation of the hair shaft. This structure is also where the hair matrix, which is composed of keratinized cells, is found, and it plays a significant role in the overall health and strength of the hair.

Understanding the function and importance of the hair bulb is vital for barbers and cosmetologists, as it is essential for hair care treatments and understanding hair growth patterns.