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Chp. 6/7 Skin
| Question | Answer |
|---|---|
| epthieal membrane | composed of epthilial tissue underlying the connective tisuue |
| connective tissue | composed of t=different types of connective tissues |
| Types of epithelial membranes | serous, mucous, cutaneous membrane |
| cutaneous membrane | the skin |
| serous memebrane | simple squamous, epithelium on a connective tissues basement membrane partial- line walls of body cavaties visceral- cover organs in body cavaites |
| pleura | serous memebrane, partial and visceral, lines wall of thoracic cavity and lungs |
| peritoneum | serous memebrane, partial and visceral lines wall and cover organs in adominal cavity |
| pleurisy | disease , inflammation of the serous membrane in the chest cavity |
| peritontius | innflmation of serous membrane in the adominal cavity |
| mucous membrane | epithelial, lines surfaces that open to the exterior, produces mucus |
| connective tissue membranes | does not contain epithelial produces synovial fluid in between joints and linning of brusal sacks |
| stratum germinativum | deepest most layer in the epidermis that continually produces cells , called pigment layer pigment cells called meloncytes produce the brown color pigments melanin |
| strantum corneum | outermost layer of keratin filled cells |
| epidermis color changes | pink- increase in blood volume or oxygen cyanoisis- blue, decrease in blood oxygen vitiligo- light patch skin loss of malaocytes freckled- small macules |
| dermal-epidermal junction | area contact between epidermis and dermis called the spot welds supports epidermis, weakning causes blisters |
| upper area of dermis | characterized by parallel rows of peglike dermal papiliea |
| thick skin | has parallel ridges and no hair |
| thin skin | irregular shallow grooves and hair |
| deep area | filled with collagenous and stretchable elastic fibers |
| striae | stretch marks |
| birthmarks | dermis, malformation of blood vessels strawberry hemangioma port whine stain strok bite |
| lanugo | soft hair of fetus |
| hair follicule | hair growth from epithelial tubelike structure |
| hair papilia | hair growth begins here |
| alopecia | hair loss |
| arrector pili | smooth muscle that produces goose bumps |
| receptors | nerve endings make it able for skin to react like an organ |
| missenier tactile corpuscle | receptor dectects light touch |
| Lamellar pacini corpuscle | receptor able to detect pressure |
| nails | produced by epidermal cells, visble part is nail body , root lies in a groove hidden under the cuticle cresent shaped is a lunlua nail bed changes depending on blood flow |
| abnormalities in nails | onocyclosis- sepration from nail body pitting- common in psorasis |
| two main types if sweat glands | sweat/ sudoriferous sebaceous |
| sweat/ sudoriferous glands | eccrine- most numerous, and important, all ober body, produces sweat out the pores, regulate body heat apocrine- in axilla and genitals, thicker sweat produces odor |
| sebaceous glands | produce oil for hair and skin sebum- black heads acne vulgaris- inflammation of sebaceous glands |
| first line of defense | microbes, Uv, chemicals, cuts and tears, bruising, skin grafts |
| temp regulation | sweat, and blood flow close to surface |
| skin lesion | variation is skins normal structure |
| elevated lesion cast shadow on their edges | papule- small plaque- large vesicle- blister crust- scab wheal- firm with light center |
| flat lesion- don't have a shadow | macule - flat discolered regions |
| depressed lesion - cast shadow within edge | ecoration- scratch ulcer- craterlike fissure - deep crack |
| first degree | partial thickness only epidermis |
| second degree | partial thickness deep epidermal and upper dermis |
| third degree | full thickness, epidermis and dermis |
| impetigo | skin infection highly contagious , stapylocco or strepococcoal |
| tinea | fungal ringworm |
| warts | benign caused by papilloma |
| boils | furuncles, in hair follicle, staphlococcoal |
| scabies | parasite infection |
| decubitus ulcers | bed sores when loss of blood flow |
| hives | cause y fluid loss in blood vessel |
| psoriasis | chronic inflammation with scaly plaques |
| Eczema | characterized by papules and crust |
| skin cancer | squamous, basal, and melanoma |
| squamous | most common hard rasied tumor |
| Basal | papules with central crater rarely spreads |
| melanoma | mole, most serious types |
Created by:
BB2424
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