Muscle Physiology Quiz

1. Which of the following tissues are said to be striated?

Question 1 of 10

2. When a muscle contracts it ________________________

Question 2 of 10

3. The outer most connective tissue wrapping of a muscle is called the

Question 3 of 10

4. the smallest contractile unit of skeletal muscle is called the __________________

Question 4 of 10

5. The thick filaments are composed primarily of

Question 5 of 10

6. Which molecule covers the myosin binding sites on the thin filaments in the absence of calcium?

Question 6 of 10

7. Which Ion causes troponin to change shape, triggering the formation of cross bridges?

Question 7 of 10

8. What is released into the synaptic cleft once an action potential reaches the end of a motor neuron?

Question 8 of 10

9. Channels in the sarcolemma that open in response to acetylcholine are

Question 9 of 10

10. The influx of which ion into the muscle fiber triggers the formation of an end plate potential (initial AP formed at the neuromuscular junction)?

Question 10 of 10


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