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Integumentary System

A&P II Chapter 5

layers of the skin epidermis, dermis (corium), subcutaneous
keratin protein that makes the skin waterproof
dermis consists of sweat glands & sebaceous (oil) glands
dermis contains capillaries, lymphatic channels, nerve endings
subcutaneous contains connective tissues and adipose (fatty) tissues
accessory structures of skin hair, nails, glands
strand of hair consists of root, follicle, shaft
lanugo soft fine hair of developing fetus
hair follicle where hair develops
dermatology study of skin
diaphoresis secretion of sweat
abrasion rubbing away of skin or mucous membrane due to friction - i.e. carpet burn
cyst closed sac that contains fluid, semi-fluid or solid material
fissure crack like sore or groove in skin or mucous membrane
laceration tear in the skin
onychomycosis fungal infection of the nail
onychocryptosis ingrown nail
pachyderm abnormal thickening of the skin
verruca vulgaris benign skin lesion know as a wart
scabies highly contagious disease caused by human itch mite (parasite)
dermis layer aka corium
cryosurgery uses subfreezing temperature to freeze and destroy tissue - liquid nitrogen
debridement removal of damaged or necrotic tissue from wound to promote healing
dermatoplasty skin transplantation
dermabrasion removal of the epidermus
Tinea ringworm
tinea cruris ringworm of the groin - jock itch
tinea pedis athlete's foot
abscess collection of pus in any body part
vesicle blister
bulla large blister
pustule small elevation filled with pus - small abscess
comedo open = black head, closed = white head
scales thin flakes of hardened epithelium
hives wheals
impetigo contagious infection - pustules filled with staph or strep
papule pimple - small solid elevation
polyp stalk like growth protruding upward or outward from membrane
dermitits acute or chronic inflammation of skin, seen in different forms
callus painless thickening of epidermis
macule freckles
eczema acute or chronic inflammation characterized by erythema, papules, vesicles, pustues, scales, crusts, scabs - starts with itching
ulcer open sore/lesion with inflammation
burn tissue injury by flame, heat, etc.
blister small thin walled lesion with clear fluid
arrector pili muscle surrounds hair follicle - when contracts results in goosepimples
sweat gland aka sudoriferous - originates in dermis and produces watery secretion through pore in epidermis
sebacous gland oil gland (sebum) - lubricates and waterproofs hair
ceruminous gland modified sweat gland present in external ear - produces cerumen (wax)
squamous cell carcinoma malignancy of squamous cells of epithelial tissue - fast growing, greater potential for metastasis
basal cell carcinoma most common malignant epithelial tumor
Kaposi's sarcoma malignant lesions - purple-brown nodule, common in men with AIDs
functions of integumentary system protection, temperature regulation, sensations
epidermal layer consists of melanin, keratin and basal layer
basal layer lower layer of epidermis - produces new cells
gangrene tissue death due to loss of adequate blood supply
herpes zoster shingles
malignant melanoma funky looking moles :)
nevus mole
psoriasis auto immune disease - no cure - chronic skin disorder - silvery white scales aka pruritus
Alopecia Partial or complete loss of hair
Ecchymosis Bruise/black and blue mark
Nuchal rigidity Stiff neck
Created by: gcjlentz
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