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8 Cards in this Set
- Front
- Back
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Synapse between motor neuron axons and skeletal fibers is called:
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neuromuscular junction
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What are T tubules?
A. Small tubes running parallel with the sarcomeres B. Extensions of the Golgi C. Invaginations of the outer membrane forming tubes wrapping around myofibrils D. Extensions of the SR |
C. Invaginations of the outer membrane forming tubes wrapping around myofibrils
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The series of action potentials leading to an increase in skeletal muscle contraction strength is called ____.
A. High frequency stimulation B. Temporal summation C. Load enhanced action potential generation D. AP muscle tension elevation |
B. Temporal summation
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How many different proteins compose an Actin protein complex?
A. 4 B. 6 C. 5 D. 3 |
D. 3
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Which of the following skeletal muscle types would have the lowest myoglobin levels?
A. Fast glycolitic B. Fast oxidative glycolitic C. Slow oxidative |
A. Fast glycolitic
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T or F Each muscle fiber typically has more than one neuromuscular junction?
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False, usually only one.
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The synaptic cleft, space between the axon terminal and synaptic trough, is filled with ECF containing what enzyme?
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Acetylcholinesterase
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Muscle hypertrophy occurs primarily in?
A. Slow oxidative fibers B. Fast oxidative fibers C. Fast glycolytic fibers |
C. Fast glycolytic fibers
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