Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Module 2g - A&P
Introduction to the Human Body
| Question | Answer |
|---|---|
| "normal" body temperature | 98.F can range from 97 to 100degrees |
| core temperature | inner parts of the body, cranial, thoracic and abdominal cavities higher |
| shell temperature | surface areas such as skin and mouth are cooler |
| thermoregulation | mechanism whereby the body balances heat production and heat loss |
| hypothermia | excessive decrease in body temperature |
| hyperthermia | excessive increase in temperature |
| heat production | heat is thermal energy and is produced by the millions of chemical reations |
| heat loss | most of the heat is lost through the skinthe remaining through the respiratory excretory systems |
| heat loss occurs by four means: radiation, conduction, convection and evaporation | |
| radiation | heat is lost from a warm object to the cooler air surrounding the warm object |
| conduction | loss of heat from a warm body to a cooler object in contact with the warm body |
| convection | is loss of heat by the air currents moving over the surface of the skin |
| evaporation | when a liquid becomes a gas |
| body temperature | regulated by several different mechanisms |
| hypothalamus | located in the brain - senses a change in temperature and sends information to the skin and skeletal muscle |
| increased temperature | blood vessels dilate, giving flushed appearancesweat glands become more active |
| decreased temperature | blood vessels constrict heat is trapped in deeper tissues; sweat glands less active; skeletal muscles contract causing shivering |
| heat related conditions | heat syncope; heat cramps; heat exhaustion; heat stroke |
| how burns are classified | according to depth; and extent of area burned |
| depth | partial-thickness or full-thickness |
| partial-thickness | 1st or 2nd degree burns |
| first-degree burn | red, painful, and slightly edematousonly the epidermis is involve; suburn |
| second-degree burn | damage to both epidermis and dermis, with little damage to the dermis it is red painful and edematous and blisters; with greater damage to dermis skin can blister |
| full-thickness burn | third-degree burns; both epidermis and dermis are destroyed, painless because sensory receptors are destroyed |
| rules of nine | the total body surface area into regions |
| eschar | dead burned tissue that form a thick,inflexible scablike layer over the burned surface |
| escharotomy | eschar is slit |
| acne | a disorder of the skin in which the sebaceous glands oversecrete sebum |
| athlete's foot | fungal infection |
| boil | also called furuncle; localized colledction of pus caused by stphylococcal infection of hair follicles and sebaceous glands |
| carbuncle | multiple, interconnecting furuncles |
| cold sore | fever blister, collection of watery vesicles caused by infection with herpes simplex virus |
| cyst | saclike structure containing fluid or semisolid material surrounded by s strong capsule |
| dermatitis | inflammation of the skin that may be caused by a variety of irritants |
| erythema | reddness |
| papules | pimplelike lesions |
| vesicles | blisters |
| eczema | inflammatory condition (atopic dermatitis) |
| hives | urticaria - allergic reaction characterized by red patches (wheals) intense itching (pruritus) |
| impetigo | contagious infection of skin caused by the staphyloccus baterium |
| psoriasis | chronic condition characterized by lesions that are red dry elevated and covered by silvery scales |
| skin cancer | several kinds are all related to sun exposure |
Created by:
janmaire