A hair follicle anchors each hair into the skin. It begins at the surface of the epidermis. For follicles that produce terminal hairs, the hair follicle extends into the deep dermis and sometimes even subcutis. Meanwhile, follicles producing vellus hairs grow only to the upper reticular dermis. There are three important segments of hair follicles found on the head: the infundibulum, the isthmus, and the lower follicle/inferior segment (which includes the bulb).
The dermis is the middle layer of the skin, existing between your epidermis and hypodermis. It is the thickest layer of skin. It contains collagen and elastin, which help make the dermis thick and supportive of the skin’s overall structure.
The epidermis, a constantly renewing stratified squamous epithelium, is the thinnest layer of skin. It helps hydrate the body, produces new skin cells, protects the body from damage, and makes melanin, which provides skin color.
A hair follicle anchors each hair into the skin. It begins at the surface of the epidermis. For follicles that produce terminal hairs, the hair follicle extends into the deep dermis and sometimes even subcutis. Meanwhile, follicles producing vellus hairs grow only to the upper reticular dermis. There are three important segments of hair follicles found on the head: the infundibulum, the isthmus, and the lower follicle/inferior segment (which includes the bulb).
The dermis is the middle layer of the skin, existing between your epidermis and hypodermis. It is the thickest layer of skin. It contains collagen and elastin, which help make the dermis thick and supportive of the skin’s overall structure.
The epidermis, a constantly renewing stratified squamous epithelium, is the thinnest layer of skin. It helps hydrate the body, produces new skin cells, protects the body from damage, and makes melanin, which provides skin color.