PHSL 1010 Exam 1 Questions With Correct Answers

PHSL 1010 Exam 1 Questions With Correct
Answers

What ||is ||the ||general ||purpose ||of ||feedback ||mechanisms ||- ||CORRECT ||ANSWER✔✔-the ||bring
||about ||rapid ||change ||in ||the ||body




What ||is ||a ||hormone ||- ||CORRECT ||ANSWER✔✔-a ||chemical ||regulator ||secreted ||from ||an ||
endocrine ||gland ||that ||travels ||through ||the ||bloodstream ||to ||affect ||target ||cells



What ||best ||describes ||how ||the ||total ||body ||balance ||of ||any ||chemical ||substance ||is ||
determined ||- ||CORRECT ||ANSWER✔✔-The ||difference ||between ||the ||amount ||of ||substance ||
lost ||from ||the ||body ||and ||the ||amount ||gained



Of ||the ||major ||ions ||found ||in ||the ||body, ||which ||one ||carries ||a ||negative ||charge ||- ||CORRECT ||
ANSWER✔✔-Chloride



What ||is ||true ||of ||electrolytes ||- ||CORRECT ||ANSWER✔✔-they ||conduct ||electricity ||when ||
dissolved ||in ||water



Molecules ||that ||have ||properties ||of ||both ||polar ||and ||non ||polar ||molecules ||are ||called ||- ||
CORRECT ||ANSWER✔✔-amphipathic



The ||pH ||of ||a ||solution ||- ||CORRECT ||ANSWER✔✔-Is ||a ||measure ||of ||the ||concentration ||of ||free
||H ||ions ||in ||the ||solution




Four ||basic ||types ||of ||cells ||- ||CORRECT ||ANSWER✔✔-muscle, ||nerve, ||connective ||tissue, ||
epithelial

,What ||are ||the ||four ||general ||categories ||of ||cells ||that ||make ||up ||the ||human ||body ||- ||CORRECT
||ANSWER✔✔-epithelial, ||connective ||tissue, ||neuron, ||muscle




Physiology ||is ||the ||study ||of ||- ||CORRECT ||ANSWER✔✔-How ||organisms ||function



The ||study ||of ||disease ||states ||in ||the ||body ||is ||called ||- ||CORRECT ||ANSWER✔✔-
Pathophysiology



The ||cell ||type ||that ||is ||specialized ||to ||communicate ||with ||other ||cells ||and ||control ||their ||
activities ||is ||- ||CORRECT ||ANSWER✔✔-nerve ||cells



Nervous ||system ||cell ||that ||initiates, ||integrates, ||and ||conducts ||electrical ||signals ||to ||other ||
cells ||(sometimes ||over ||long ||distances) ||- ||CORRECT ||ANSWER✔✔-neuron



Cellular ||extensions ||of ||neurons ||packaged ||with ||connective ||tissue ||(carries ||signals ||between ||
nervous ||system ||and ||other ||parts ||of ||body) ||- ||CORRECT ||ANSWER✔✔-nerve



What ||is ||the ||term ||for ||the ||developmental ||process ||that ||leads ||to ||specialized ||cell ||types ||- ||
CORRECT ||ANSWER✔✔-differentiation



What ||best ||describes ||the ||extracellular ||matrix ||- ||CORRECT ||ANSWER✔✔-it ||surrounds ||cells; ||
contains ||proteins, ||polysaccharides, ||and ||minerals. ||Provides ||a ||scaffold ||for ||cell ||attachment. ||
transmits ||messengers ||to ||cells



extracellular ||matrix ||consists ||of ||- ||CORRECT ||ANSWER✔✔-mixture ||of ||proteins, ||
polysaccharides, ||and ||minerals

, If ||a ||person ||begins ||to ||sweat ||upon ||entering ||a ||hot ||room ||but ||continued ||sweating ||is ||able ||
to ||keep ||body ||temperature ||constant, ||which ||best ||describes ||her ||condition ||- ||CORRECT ||
ANSWER✔✔-She ||is ||in ||a ||steady ||state



Homeostasis: ||dynamic ||equilibrium ||- ||CORRECT ||ANSWER✔✔-Maintenance ||of ||stable ||internal
||environment. ||Variables ||are ||kept ||in ||normal ||range ||around ||set ||point.




homeostasis: ||steady ||state ||- ||CORRECT ||ANSWER✔✔-system ||that ||variable ||isn't ||changing ||by ||
energy ||is ||added ||to ||maintain ||condition



What ||concept ||is ||the ||defining ||feature ||of ||the ||discipline ||of ||physiology ||- ||CORRECT ||
ANSWER✔✔-homeostasis



describing ||a ||physiological ||variable ||as ||homeostatic ||means ||that ||it ||- ||CORRECT ||ANSWER✔✔-
is ||in ||a ||state ||of ||dynamic ||constancy ||that ||is ||regulated ||to ||remain ||near ||a ||stable ||set ||point ||
value



dynamic ||constancy ||- ||CORRECT ||ANSWER✔✔-constantly ||changing ||and ||active ||mechanisms ||
to ||detect ||and ||respond ||to ||changes ||in ||physiological ||variables ||from ||set ||points ||by ||initiating ||
effector ||responses ||to ||restore ||the ||variables ||to ||their ||optimal ||physiological ||range



What ||term ||is ||used ||to ||describe ||the ||steady ||state ||value ||for ||any ||variable ||that ||the ||body ||
attempts ||to ||maintain ||- ||CORRECT ||ANSWER✔✔-set ||point



what ||are ||the ||components ||of ||a ||general ||reflux ||arc ||listed ||in ||the ||order ||information ||
typically ||flows ||through ||them ||following ||a ||stimulus ||- ||CORRECT ||ANSWER✔✔-Receptor, ||
afferent ||pathway, ||integrating ||center, ||efferent ||pathway, ||effector



Detectable ||change ||in ||internal ||or ||external ||environment ||- ||CORRECT ||ANSWER✔✔-stimulus