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WorksheetsPTNE Skeletal Muscle Contraction
Total questions: 10
Worksheet time: 5mins
What name is given to a section of muscle between the Z-Lines?
Sarcoplasm
Mitochondria
Cytoplasm
Sarcomere
Which Myofilament is considered the thin one?
Actin
Myosin
Myofibirils
Mitochondria
Which energy compound is required for muscle contraction?
ATP
ADP
AMP
GPP
Which of the following is NOT a part of the anatomy used to identify where the motor neuron meets skeletal muscle?
Axon Terminal
Synaptic Bulb
Neuromuscular Junction
Action Potential
What is the neurotransmitter released from the synaptic bulb for an action potential to begin
Serotonin
Dopamine
Aceytlcholine
ATP
Where is calcium (Ca+2) released from in skeletal muscle?
Sarcoplasm
Cytoplasm
Sarcoplasmic Reticulum
Mitochondria
What does Calcium bind to in order for myosin crossbridges to form?
Actin
Troponin
Tropomyosin
Myosin
Binding sites are exposed on actin filaments when this structure moves out of the way
Tropomyosin
Troponin
Myosin
ATP
When Myosin and Actin bind, what is the name given to a contraction phase
Eccentric
Isometric
Power Stroke
Binding
The first step of muscle contraction starts with what...
ATP re-synthesis
Nerve Impulse
Action potential
ATP-PC system
