Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Important Definitions skin: a protective layer that covers the body epidermis: the outer layer of skin tiny muscle: small muscle located under skin oil gland: a gland that secrets oily substances dermis: the inner or middle layer of skin sweat gland: a gland that secrets sweat hair: filaments (thread like structure) growing from the skin hair follicle: skin organ that produces hair nerve: special structures that sense touch hypodermis (subdermis): the bottom layer of the skin made of fatty tissue blood vessel: a vessel which blood circulates Integumentary system: a system that protects the body from damage, made up of the skin and its appendages (fingernails, toenails, and hair)