Anatomy And Physiology Bio 252 - Lecture Exam 1 With Correct Answers

Anatomy And Physiology Bio 252 - Lecture
Correct Answers




Anatomy c- cCORRECT cANS✔✔The cstudy cof cstructure

Physiology c- cCORRECT cANS✔✔The cstudy cof cfunction

Homeostasis c- cCORRECT cANS✔✔Adjusting cto cmaintain ca cconstant cinternal cenvironment cthat
cfunctioning


4 cGeneral cTypes cof cTissue c- cCORRECT cANS✔✔1. cConnective c2. cMuscular c3. cNervous c4. cE

Organ c- cCORRECT cANS✔✔When ctwo cdifferent ctypes cof ctissue cwork ctogether

Central cNervous cSystem c- cCORRECT cANS✔✔The cBrain cand cSpinal cCord. cThe ccontrol croom.

Peripheral cNervous cSystem c- cCORRECT cANS✔✔Cranial cNerves cand cSpinal cNerves c(Everythi
cspinal ccord). cSensory cand cmotor cfunctions.


Sensory c- cCORRECT cANS✔✔(Afferent) cSomatic: cskin, cskeletal cmuscles, cjoints
Visceral: cinternal corgans

Motor c- cCORRECT cANS✔✔(Efferent) cSomatic: cskeletal cmuscles
Autonomic: csmooth cmuscle ccells, ccardiac cmuscles, cglands

Myelin cSheath c- cCORRECT cANS✔✔Whitish, cfatty c(protein-lipid) csegmented ccoating caround cm
cmade cout cof cother ccells cthat care cnot cneurons.


Functions cof cthe cMyelin cSheath c- cCORRECT cANS✔✔1. cProtect cthe caxon
2.Electrically cinsulate cfibers
3. cIncrease cspeed cof cnerve cimpulse ctransmission

Fascicles c- cCORRECT cANS✔✔Bundles cof caxons

Types cof cneuroglia ccells cin cthe cCNS c- cCORRECT cANS✔✔1. cAstrocytes c
2. cMicroglia
3. cOligodendrocyte
4. cEpendymal cCells
* cThese ccells cCANNOT cgenerate caction cpotential

, Voltage c(V) c- cCORRECT cANS✔✔The cmeasure cof cdifferences cin celectrical cpotential cenergy cge
c(Potential cacross cthe cmembrane)


Current c(I) c- cCORRECT cANS✔✔The cflow cof celectrical ccharges cbetween ctwo cpoints. c(Ions)

Resistance c(R) c- cCORRECT cANS✔✔Hindrance cto ccharge cflow. c(Membrane cpermeability)

Types cof cIon cChannels c- cCORRECT cANS✔✔1. cLeak cChannels
2. cChemically c(ligand)-gated cChannels
3. cVoltage-gated cChannels
4. cMechanically-gated cChannels

Leak cChannels c- cCORRECT cANS✔✔Ion cchannels cthat care calways copen.

Chemically c(ligand)-gated cChannels c- cCORRECT cANS✔✔Ion cchannels cthat copens cwhen ca csp
cClosed cin ca cresting cstate. cCan cbe cion-specific cor cnot.


Voltage-gated cChannels c- cCORRECT cANS✔✔Ion cchannels cthat care copened cif cthe cvoltage cou
cion cselective. cGates ccan cbe copened cor cclosed cat cdifferent cspeeds.


Mechanically cGated cChannels c- cCORRECT cANS✔✔Ion cchannels cthat cphysically copen cup cin ct
c(temp, ctouch, cvibration, cetc). cFound cin csensory creceptors.


Sodium/Potassium cPump c- cCORRECT cANS✔✔Brings ctwo cmolecules cof cK+ cin cand cthree cmole
creserve can celectrical cgradient. cIt cworks cagainst cthe cthe cgradient cand cthus crequires cATP.


Depolarization c- cCORRECT cANS✔✔Making cthe ccell cless cpotential

Hyperpolarization c- cCORRECT cANS✔✔Making cthe ccell cmore cpolarized

Graded cPotential c- cCORRECT cANS✔✔A cshort crange cchange cin ca cmembrane cpotential cupon c
cstimulus csize. cCan cspread clocally. cThe csite cnext cto cthe coriginal cdepolarization cevent cwill calso
cgraded cpotential


Axon cHillock c- cCORRECT cANS✔✔Trigger czone cfor caction cpotential

Absolute cRefractory cPeriod c- cCORRECT cANS✔✔The ctime cafter can caction cpotential chas cbeen
chave cnot cyet creset cto ctheir cresting cpositions cand ca cnew cAP ccannot cbe cformed.


Relative cRefractory cPeriod c- cCORRECT cANS✔✔The ctime cafter can caction cpotential chas cbeen c
cNa+ cchannels chave creset


Multiple cSclerosis c- cCORRECT cANS✔✔An cautoimmune cdisease cin cwhich cthe cblood cbrain cbar
cCells cin cthe cimmune csystem care ckilling cthe coligodendroglial csites cand cgradually cthe cmyelin cs
ccurrent cleakage.


Presynaptic cNeuron c- cCORRECT cANS✔✔Conducts cimpulses ctoward cthe csynapse. cCan cform c
cpostsynaptic cneuron. cThree cdifferent ckinds cof cthese csynapses.


Axodendritic cSynapse c- cCORRECT cANS✔✔Synapse cbetween ca cpresynaptic cneuron cand cthe c
cdendrites


Axosomatic cSynapses c- cCORRECT cANS✔✔Synapse cbetween ca cpresynaptic cneuron cand cthe c
cbody c(soma)