Here's a breakdown:
* Hair Follicle: This is a tiny, tube-like structure that extends down into the dermis (the deeper layer of skin).
* Hair Bulb: At the base of the follicle is a bulb-shaped structure that contains a group of cells called hair matrix cells. These cells are responsible for producing new hair.
* Hair Shaft: The hair that we see growing from the scalp or other parts of the body is called the hair shaft. It's made of dead, keratinized cells.
So, while the hair itself is made of dead cells, the living cells within the hair follicle are constantly creating new hair.