Tag Archives: DermTerms
Inner root sheath
lining of the hair follicle
Hair matrix
the collection of epithelial cells from which hair grows
Hair follicle
formed by the inward folding of the epidermis; “sac” in which hair grows and sebaceous gland release sebum
Sebum
oil secreted by the sebaceous glands; protects the skin and hair from dehydration and causes both to be waterproof
Terminal hair
type of hair that is dark, thick, relatively long, and hormonally-influenced
Vellus hair
type of hair that is light, fine, short, barely noticeable; commonly referred to as “peach fuzz”
Keratin
a tough protein that is found in hair, nails, and the skin; causes these organs and appendages to be strong
Onychoschizia
Splitting of the nail
Onycholysis
Splitting of the nail plate from the nail bed
Plaque psoriasis
The most common form of psoriasis. It is characterized by red, scaling, flaking patches, or raised areas of the skin. These spots can be itchy or painful.