Name: __________________________
Section: _____________________
Muscular System Physiology Worksheet
Vocabulary
1. Fascicle –
2. Tendon –
3. Twitch –
4. Anaerobic –
5. Aerobic –
Short Answer
Be able to answer questions similar to these.
6. Label the myofibril, muscle, muscle fiber, and fascicle on the diagram below.
7. Name the connective tissue (perimysium, epimysium, endomysium) covering each of these structures:
Muscle –
Fascicle –
Muscle Fiber (cell) -
8. What is the sarcoplasmic reticulum? What function does it have in muscle fibers?
9. What are the thick and thin filaments in muscle fibers that slide past each other called?
10. This graph shows the tension
produced by a single muscle twitch.
Label the latent period, contraction
phase, stimulus, and relaxation
phase.
11. Complete this table summarizing the differences between glycolysis and cell respiration.
Anaerobic / Aerobic
Amount of ATP
Produced
Where takes
place in cell
Glycolysis
Cell Respiration
12. What two forms do muscles store excess energy in during rest? What molecules are these made from?
13. Complete the table below comparing fast-twitch and slow-twitch muscle fibers.
Size
Amount of
Mitochondria
Myoglobin?
Color
Fast-Twitch
Slow-Twitch
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14. Fill out the chart of muscle disorders below:
Disorder
Polio
Cause
Virus
Symptoms / Effects
Destroys motor neurons, causing paralysis.
ALS (Lou Gehrig’s)
Muscular Dystrophy
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