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- 1. Multiple Choice
A long filamentous organelle found within muscle cells that has a banded appearance
thick filament
myofibril
sarcomere
sarcolemma
- 2. Multiple Choice
A motor neuron & all the muscle fibers it simulates is called a _____.
motor unit
action potential
actin filament
neurotransmitter
- 3. Multiple Choice
True or False: The smallest functional unit of a muscle is the sarcomeres.
True
False
- 4. Multiple Choice
What is AC?
Myofibril
Light I Band
Sarcolemms
Dark A Band
- 5. Multiple Choice
What is E?
Sarcoplasmic reticulum
Myosin
I Band
Actin
- 6. Multiple Choice
What is B?
Sarcolemma
Mitochondrion
Nucleus
Myofibril
- 7. Multiple Choice
What are the two connected arrows pointing to?
epimysium
fascicle
perimysium
M line
- 8. Multiple Choice
What is the dark arrow pointing to? (surrounds entire muscle)
epimysium
myosin
sarcomere
fascicle
- 9. Multiple Choice
What is otherwise known as a bundle of muscle cells?
tendon
epimysium
muscle belly
fascicle
- 10. Multiple Choice
In the 4th step of muscle contraction based on the Sliding Filament Theory, what type of ion exposes active sites on actin filament?
myosin
actin
calcium
acetylcholine
- 11. Multiple Choice
What is location 1?
vesicles
motor neuron
t-tubule
sarcolemma
- 12. Multiple Choice
What is location b?
acetylcholine
acetylcholine receptors
cross-bridge
ATP
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