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WorksheetsSkeletal Muscle Anatomy
Total questions: 20
Worksheet time: 10mins
The point at which the nerve cell reaches the sarcolemma of the muscle fiber is the _____.
Neurotransmitter
Acetylcholine
Synaptic cleft
Neuromuscular Junction
One neuron and all the skeletal muscle cells it stimulates is the ____ ___.
Neurotransmitter
Neuromuscular junction
Motor unit
Synaptic cleft
The gap between the nerve cell and sarcolemma is the ____ ___.
Synaptic cleft
Neurotransmitter
Motor unit
Neuromuscular junction
What is the specific neurotransmitter that stimulates the movement of skeletal muscles?
GABA
Acetylcholine
Serotonin
Dopamine
Once the action potential reaches the end of the axon terminal what takes place?
ACh is released into the synaptic cleft.
Calcium is pumped into the sarcolemma.
Calcium is pumped into the AT.
The muscle contracts.
Once calcium is pumped into the axon terminal what happens?
The muscle contracts
ACh is released into the synaptic cleft.
Sodium pumps into the sarcolemma.
The muscle contracts.
What is the name of the component that houses the neurotransmitters?
Synaptic cleft
Acetylcholine
Receptors
Synaptic vesicles
Once ACh binds to receptor cells on the sarcolemma, what takes place?
Sarcolemma becomes temporarily permeable to sodium.
The muscle contracts.
Calcium is pumped into the axon terminal.
Synaptic vesicles move to the end of the terminal.
Once sodium is pumped into the sarcolemma, what happens?
Action potential is transferred to the sarcolemma to cause contraction.
The process ends and ACh breaks down.
Calcium is pumped into the axon terminal.
ACh is released into the synaptic cleft.
The neuromuscular junction is created when the nerve cell reaches the ___.
Sarcomere
Sarcoplasmic reticulum
Sarcolemma
Myofibril
Which type of muscle is voluntary and striated?
Cardiac
Smooth
Skeletal
Which type of muscle is involuntary and striated?
Cardiac
Smooth
Skeletal
Which type of muscle is involuntary and non striated?
Cardiac
Smooth
Skeletal
What is the name of the connective tissue sheath that surrounds each muscle fiber?
Endomysium
Epimysium
Perimysium
Which membrane covers several fibers to form a fascicle?
Endomysium
Epimysium
Perimysium
Which membrane binds many fascicles together and covers the entire muscle?
Endomysium
Epimysium
Perimysium
What is the scientific name for a muscle fiber bundle?
Tendon
Ligament
Fascicle
Perimysium
Which label is pointing to the epimysium?
A
B
C
D
Which label is pointing to the perimysium?
A
B
C
D
Which label is pointing to the endomysium?
A
B
C
D
