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Unit #2 - Orientation to the Human Body Flashcards

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10603533617ANATOMICAL POSITIONcharacterized by standing erect with arms at the sides and the palms of the hands turned forward; standard reference position used for describing locations and directions on the human body0
10603533618ANATOMYthe study of the structure and composition of the body's structures1
10603533619ATOMSthe smallest unit of an element that maintains the properties of that element2
10603535246CELLsmallest independently functioning unit of all organisms3
10603536287CONTROL CENTERintegration center; receives and processes information from the receptor in a homeostatic control mechanism; determines the set point at which a homeostatic variable should be kept4
10603539696EFFECTORan organ, often times a muscle or gland, that carries out the response of the control center in a homeostatic control mechanism5
10603543494EXCRETIONthe process by which wastes are removed from the body6
10603543495HOMEOSTASISan organism's ability to maintain stable internal conditions7
10603543496HOMEOSTATIC IMBALANCEa disturbance in homeostasis resulting in disease8
10603545060IRRITABILITYability to respond to a stimulus9
10603545061METABOLISMthe combination of chemical reactions through which an organism builds up or breaks down materials10
10603545888MOVEMENT11
10603547356NEGATIVE FEEDBACK MECHANISMhomeostatic control mechanism that depresses the effects of the original stimulus12
10603547357ORGANa functionally distinct structure composed of two or more different tissue types13
10603547358ORGAN SYSTEMgroup of organs that work together to perform a specific function14
10603548395ORGANISMa living thing that can independently perform all physiologic functions necessary for life15
10603548396PHYSIOLOGYthe study of how the body functions16
10603549353POSITIVE FEEDBACK MECHANISMhomeostatic control mechanism that enhances the effects of the original stimulus17
10603549354RECEPTORin a homeostatic control mechanism, the component that detects a change in a homeostatic variable18
10603549355REPRODUCTIONthe production of offspring19
10603551145TISSUEgroup of similar cells that perform a specific function20
10603574055AFFERENT PATHWAYcomponent of a homeostatic control mechanism that transmits information from the receptor to the control center21
10603574056EFFERENT PATHWAYcomponent of a homeostatic control mechanism that transmits information from the control center to the effector(s)22
10603574065INPUTinformation carried along the afferent pathway from the receptor to the control center23
10603576095OUTPUTinformation carried along the efferent pathway from the control center to the effector24
10603650105SET POINTthe ideal value for a homeostatic variable25
10603650106NORMAL RANGEthe range of values around the set point that do not trigger a reaction by the control center26
10603679346GROWTHprocess of increasing in size27
10603680378DEVELOPMENTchanges an organism undergoes throughout its lifetime28
10603691752VARIABLEfactor regulated by a homeostatic control mechansim29

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