Anatomical projection that protrudes from the skin. Examples: hair, nail, feather, claw, hoof, horn, wattle, spur, beak, antler, bristle and some scales. [ ]

This is just here as a test because I lose it

Term information



editor note

Mammary glands develop by similar mechanisms, and there is an argument for including them here (e.g., but these structures do not fit the current definition (lactiferous glands are part of the integumentary system in FMA). Note the FMA class is a subdivision of epidermis, which may be too restrictive for our purposes here.

has exact synonym

skin appendage

has narrow synonym

epidermal appendage

has related synonym

epidermal growth