Integumentary System Larissa Amaya (layers of the epidermis (stratum…
Integumentary System Larissa Amaya
function of the integumentary system
rids the body of waste in the form of urea.(sweat)
regulation of body temperature.
surface vessels contract.
dilate surface blood vessels
synthesis of vitamin D
connective tissue membrane.
absorption and secretion. produces mucus.
layer of epithelium over loose connective tissue; epithelium varies with location.
lines cavities that open to exterior.
major organ of the integumentary system. covers body surface.
made of keratinized stratified squamous epithelium underneath is dense connective tissue.
separated by fluid.
simple squamous epithelium over loose connective tissue.
secrete serous (watery) fluid for lubrication.
lines cavities and cover organs closed to exterior
layers of the epidermis
attached to basement membrane
separates dermis from epidermis
more apparent in thick skin such as palms of hands and soles of feet/
2-3 layers keratinocytes
several layers thick keratinocytes from stratum basale, take in melanin.
keratinization begins here and cells beginning to die
3-5 layers keratinocytes
20-30 layers tightly packed of flat cells full of keratin
keratin is waterproof
layers of the skin
Made of keratinized stratified squamous epithelium
made of connective tissue
first degree burn
only epidermis is damaged
healing in few days to 2 weeks
second degree burn
destroys epidermis and upper part of dermis
destroys epidermis,dermis and accessory organs of skin
appears white,red, or blackened
herpes simplex virus type 1
triggered by exposure to uv rays or stress, spread by kissing
pink water filled raised lesons that develop to yellow crust and eventually rupture
boils and carbuncles
infection causing inflammation of hair follicles and sebaceous glands by bacteria from friction with clothing or shaving
moon-shape close to cuticle
skin and nail attach
portion embedded in the skin
underneath the nail
of nail production
portion of nail hanging over nailbed
portion of hair underneath the skin
portion of hair above the skin
dermal and epidermal sheath surrounds hair root
enlarged base of hair
base of root
surrounds hair papilla