folículo
A folículo is a biological structure that produces hair. These structures are found in the skin of mammals. A hair follicle is a small, sac-like invagination of the epidermis that envelops the root of a hair. The follicle is responsible for the growth and cycling of the hair shaft.
The development of a hair follicle begins during fetal development. A downgrowth of epidermal cells penetrates
The hair follicle is composed of several layers. The outer root sheath is a continuation of the
Hair follicles go through cycles of growth. The anagen phase is the active growth period, during which