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BIOS 252 COMP EXAM QUESTIONS AND ANSWERS.

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BIOS 252 COMP EXAM QUESTIONS AND ANSWERS.

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Bios 252:

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Bios 252:

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BIOS 252 COMP EXAM QUESTIONS
AND ANSWERS

When43compared43to43a43classic43lever43system,43the43synovial43joints43of43our43Muscul
oskeletal43system43play43the43role43of43the43_________?

A.43Weight
B.43Force
C.43Fulcrum43
D.43Lever
E.43Resistance43-43answer--C.43Fulcrum.

Which43of43the43following43event43will43occur43when43depolarizing43graded43potential's43
reach43the43membrane43of43the43axon43Hillock,43causing43its43membrane43potential43to4
3reach43threshold?

A.43Ligand-gated43Ca++43channels43close43rapidly
B.43Voltage-gated43Ca++43channels43open43rapidly43
C.43Ligand-gated43Na+43channels43close43rapidly
D.43Voltage-gated43Na+43channels43open43rapidly43
E.43Ligand-gated43Cl+43channels43close43rapidly43-43answer--D.43Voltage-
gated43Na+43channels43open43rapidly.

The43attachment43of43the43muscles43tendon43to43the43stationary43bone43is43called43the43
_________?
43;43The43attachment43of43the43muscles43other43tendon43to43the43movable43bone43is43cal
led43the__________?43

A.43Origin43;43action
B.43Insertion43;43action43
C.43Origin43;43insertion
D.43Stabilizer43;43mover43
E.43Insertion43;43origin43-43answer--C.43Origin43;43Insertion

Which43of43the43following43fascicular43arrangements43would43best43be43described43as43f
ascicles43arranged43on43only43one43side43of43the43tendon?

, A.43Unipennate
B.43Bipennate
C.43Fusiform
D.43Circular
E.43Multipennate43-43answer--A.43Unipennate

Which43type43of43synapse43involves43the43secretion43of43a43neurotransmitter43across43th
e43synapse43to43stimulate43the43post-synaptic43cell?

A.43Mechanical43
B.43Nominal
C.43Electrotonic
D.43Processing
E.43Chemical43-43answer--E.43Chemical

Your43friend43nods43'yes'43to43you,43going43through43flexion,43extension,43and43hyper43e
xtension43in43their43enthusiastic43response.43This43movement43at43the43fulcrum43represe
nts43a43

A.43First-class43lever43system
B.43Second-class43lever43system43
C.43Third-class43lever43system43
D.43Fourth-class43lever43system43
E.43Does43not43represent43a43lever43system43-43answer--A.43First-class43lever43system

The43sarcoplasmic43reticulum43stores43

A.43Oxygen
B.43Glycogen
C.43ATP
D.43Calcium43ions43
E.43Glucose43-43answer--D.43Calcium43ions

Which43of43the43following43is43NOT43a43function43of43smooth43muscle43tissue?

A.43Altering43the43diameter43of43the43respiratory43passageways43
B.43Elevating43hairs43on43the43arm43
C.43Blinking43the43eyelid43
D.43Moving43food43materials43along43the43digestive43tract43
E.43Moving43urine43from43the43kidneys43into43the43bladder43-43answer--
C.43Blinking43the43eyelid

In43an43isometric43contraction,43the43,uncle43develops43tension43but43does43not?

A.43Shorten

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