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Muscle System Part 3
Test Description: Review of ch 8
Instructions: Answer all questions to get your test result.
1) the increase in the number of motor units activated when the intensity of stimulation increases is called
A
recruitment
B
latency
C
all or none response
D
threshold stimulation
2) the all or none response means
A
all of the muscles in a region contract together
B
when a muscle fiber contracts, it contracts completely
C
when a muscle fiber contracts, all of its ATP is changed to ADP
D
all of the muscle fibers within a muscle contract together
3) In a recording of a muscle twitch, the delay between the time a stimulus is applied and the time the muscle responds is called the
A
relaxation period
B
refractory period
C
latent period
D
contraction period
4) Activities such as swimming and running are most likely to stimulate development of
A
slow, fatigue-resistant muscle fibers
B
slow, fatigable muscle fibers
C
fast, fatigue-resistant muscle fibers
D
fast, fatigable muscle fibers
5) Muscle fatigue is most likely due to an accumulation of
A
ADP
B
lactic acid
C
ATP
D
oxygen
6) The rhythmic, wavelike motion produced by smooth muscles in tubular visceral organs is called
A
peristalsis
B
latency
C
sustained contraction
D
the wave
7) muscles that assist the prime mover are called
A
mover helpers
B
synergists
C
antagonists
D
protagonists
8) the minimal stimulus needed to elicit a muscle contraction is called ____ stimulation.
A
intermittent
B
latent
C
threshold
D
prolonged
9) soreness down the front of the leg due to straining the anterior leg muscles, often as a result of walking up and down hills is known as
A
dead leg
B
shin splints
C
seizures
D
none of these
10) any muscular disease is classified as a
A
myopathy
B
dystrophy
C
temporary disease
D
myology
*select an answer for all questions
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