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WorksheetsIntroduction to Muscle Contraction
Total questions: 18
Worksheet time: 17mins
Name
Class
Date
1.
A nerve cell
a)
Axon
b)
Muscle fiber
c)
Neuron
d)
Neurotransmitter
2.
Projection that extends away from a nerve cell and is capable of conducting action potentials away from the nerve cell
a)
Neuron
b)
Neurotransmitter
c)
Synapse
d)
Axon
3.
Connection between the axon the muscle
a)
Synapse
b)
Neurotransmitter
c)
Motor Neuron
d)
Axon
4.
A chemical that an axon end secretes into a synapse
a)
Neurotransmitter
b)
Synaptic Cleft
c)
Neuron
d)
Axon
5.
A neuron that conducts impulses to create a response/an effect
a)
Motor Neuron
b)
Axon
c)
Muscle Fiber
d)
Synapse
6.
The synapse where a motor neuron axon and a skeletal muscle fiber meet
a)
Neurotransmitter
b)
Neuron
c)
Axon
d)
Neuromuscular Junction
7.
Where the sarcolemma is extensively folded and nuclei and mitochondria are abundant
a)
Neurotransmitter
b)
Motor End Plate
c)
Axon
d)
Acetylcholine
8.
The small gap that separates the neuron and muscle fiber
a)
Axon
b)
Neurotransmitter
c)
Synaptic Cleft
d)
Synapse
9.
How to neurons communicate with muscle cells?
a)
By releasing antibodies
b)
By releasing neurotransmitters
c)
By making a phone call
d)
Morse Code
10.
How do neurotransmitters get from the neuron to the muscle fiber?
a)
By diffusing across the synaptic cleft
b)
By jumping across the synaptic cleft
c)
Teleportation
d)
By sliding across the synaptic cleft attached to a protein
11.
What is the effect of neurotransmitters reaching the muscle fiber?
a)
Relaxation
b)
No response
c)
Contraction
d)
Initiating sleep
12.
Which neurotransmitter is used to control skeletal muscle contraction?
a)
Dopamine
b)
Seratonin
c)
Norepinephrine
d)
Acetylcholine
13.
Where are acetylcholine receptors located?
a)
Sarcoplasmic Reticulum
b)
Sarcoplasm
c)
Sarcolemma
d)
Sarcasm
14.
Contraction occurs when sarcomeres...
a)
Lengthen
b)
Shorten
c)
Stay the same size
d)
Enlarge
15.
Thick and thin filaments change in length during contraction
a)
True
b)
False
16.
When sarcomeres shorten, what happens to individual thick and thin filaments?
a)
Thin filaments shorten; thick filaments lenghten
b)
Thick filaments shorten; thick filaments lengthen
c)
The filaments slide past one another
d)
Both filaments shorten
17.
Calcium ions are released from the...
a)
Sarcoplasmic Reticulum
b)
Sarcoplasm
c)
Sarcolemma
d)
Sarcasm
18.
When actin and myosin attach to one another, it is called a...
a)
Neurotransmitter
b)
Cross-bridge
c)
Paddle
d)
Actinomyosin
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