The Integumentary System. Structure of the Skin Structure – two primary layers called epidermis and dermis, subcutaneous layer of fat (hypodermis). 1 Sq. inch contains: 500 sweat glands, over 1000 nerve endings, “yards” of blood vessels, nearly 100 sebaceous glands, 150 pressure sensors, 75 heat sensors, 10 cold sensors, millions of cells total.
Epidermis Outermost and thinnest primary layer of skin Composed of several layers of stratified squamous epithelium Stratum germinativum (or basale) – innermost layer of cells that continually reproduce, and new cells move toward the surface. Outermost layer is stratum corneum because cells are cornified (cornu = horn). Integumentary System. [Continued from above] . . . damage.
The exocrine glands of the integumentary system produce sweat, oil, and wax to cool, protect, and moisturize the skin’s surface. EpidermisThe epidermis is the most superficial layer of the skin that covers almost the entire body surface. The epidermis rests upon and protects the deeper and thicker dermis layer of the skin. Structurally, the epidermis is only about a tenth of a millimeter thick but is made of 40 to 50 rows of stacked squamous epithelial cells. How do langerhans cells work? - Healthy Skin. Medical Definition of Hair follicle. The Integumentary System. Integumentary System. Introduction The integumentary system consists of the skin, hair, nails, glands, and nerves.
Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.