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Anatomy Vocab Ch 6 Test

Enter the letter for the matching Answer
incorrect
1.
axon (nerve fiber)
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2.
deltoid
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3.
opposition
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4.
smooth muscle
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5.
myofilaments
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6.
muscular dystrophy
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7.
atrophy
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8.
aponeuroses
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9.
tension
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10.
motor unit
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11.
graded responses
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12.
oblique
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13.
unfused (incomplete tetanus)
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14.
creatine phosphate (CP)
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15.
cleido
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16.
action potential
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17.
elongated
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18.
maximus
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19.
dorsiflexion
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20.
muscle tone
A.
skeletal and smooth muscle cells, shape of the cell has led to the name muscle fibers
B.
sheetlike fibers that attach muscles indirectly to bones, cartilage or connective tissue coverings
C.
threadlike, what causes the banding pattern in the sarcomeres; two types, do not shorten during contraction, slide past each other
D.
different degrees of shortening in response to stimuli; frequency of muscle stimulation or number of cells stimulated
E.
the state of continuous partial contraction
F.
state of the muscle before tetanic contraction
G.
actin and mysin myofilaments interacting, thin actic filaments pass the thick myosin myofilaments
H.
wasting away
I.
no striations, involuntary, cannot consciously control it; found in hollow visceral organs ie stomach, urinary bladder, etc; visceral, nonstriated, involuntary
J.
at a slant
K.
direct phosphorylation of ADP; found only in muscle fibers; this type is soon exhausted
L.
sarcolemma becomes permeable to sodium ions (Na+) and potassium ions (K+), leaving excess of positive ions, allowing Na+ entry; the upset of the electrical current; contraction of the muscle cell; takes just a few thousandths of a second for this process
M.
bringing two surfaces together, as in opposing fingers meeting the thumb
N.
largest
O.
triangular
P.
long threadlike extension of the neuron; forming junctions with the sarcolemma of a different muscle cell
Q.
has clavicle attachment site
R.
congenital muscular problem; inherited muscle-destroying disease that affects specific uscle groups; muscles degenerate and atrophy
S.
lifting up the foot so that top surface is closer to the shin
T.
one neuron and all skeletal muscle cells
Type the Question that corresponds to the displayed Answer.
incorrect
21.
composed of contractile protein actin and regulatory proteins; AKA actin filaments, overlap thick filaments
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22.
myofilaments are successful in sliding movement, muscle shortens, movement occurs
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23.
chains of tiny contractile units that make up the myofibril; boxcar
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24.
movement of a bone around its axis
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25.
fascicles run parallel to the long axis of the muscle; straplike
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26.
the muscle husk; the plasma membrane
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27.
the joining of nerve and muscle cells
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28.
bundle of fibers
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29.
fascicles insert into opposite sides of the tendon
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30.
pyruvic acid generated during glycolysis, converted to help provide strength for working muscles

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