WorksheetsMuscular System Anatomy
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
The thick filament is composed of:
a)
Myosin
b)
Actin
2.
The thin filament is composed of:
a)
Myosin
b)
Actin
3.
Involuntary
a)
skeletal
b)
cardiac
c)
smooth
d)
smooth and cardiac
4.
The gap between the nerve cell and sarcolemma is the ____ ___.
a)
Synaptic cleft
b)
Neurotransmitter
c)
Motor unit
d)
Neuromuscular junction
5.
What is the specific neurotransmitter that stimulates the movement of skeletal muscles?
a)
GABA
b)
Acetylcholine
c)
Serotonin
d)
Dopamine
6.
Region where a motor neuron comes in close contact with a muscle cell.
a)
neurotransmitter
b)
muscular dystrophy
c)
muscle tension
d)
neuromuscular junction
7.
What happens at the neuromuscular junction?
a)
A sensory neuron communicates with a motor neuron
b)
An action potential jumps from the muscle to the neuron
c)
A nerve signal traveling down a motor neuron can jump over to the muscle cell
d)
Muscle cells contract in response to a sensory neuron
8.
Skeletal muscles are voluntary.
a)
true
b)
false
9.
The epimysium covers
a)
the entire muscle
b)
the fascicle
c)
the muscle fiber
d)
the myofibril
10.
Which connective tissue surrounds the fascicle?
a)
epimysium
b)
perimysium
c)
sarcolemma
d)
endomysium
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