click below
click below
Normal Size Small Size show me how
Integumentary System
A&P II Chapter 5
| Term | Definition |
|---|---|
| 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 |