Match each of the terms with its definition or explanation.
a. skeletal muscle
b. smooth muscle
c. origin
d. insertion
e. actin
f. myosin
g. motor unit
h. neuromuscular junction
i. isotonic
j. isometric
1. _____ Protein that makes the thin myofilament
2. _____ Another name for voluntary muscle
3. _____ Type of muscle contraction in which the muscle shortens and the joint moves
4. _____ Point of contact between the nerve ending and the muscle fiber
5. _____ Attachment point to the bone that moves during muscle contraction
6. _____ Another name for visceral muscle
7. _____ Protein that makes up the thick myofilament
8. _____ Attachment point to the bone that is stationary during contraction
9. _____ Muscle contraction in which the muscle tenses but does not shorten
10. _____ Single motor neuron with all the muscle cells it innervates
1. e. actin
2. a. skeletal muscle
3. i. isotonic
4. h. neuromuscular junction
5. d. insertion
6. b. smooth muscle
7. f. myosin
8. c. origin
9. j. isometric
10. g. motor unit
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The myogenic response of smooth muscle results in
a) more forceful contractions when stretched. b) more forceful contractions when relaxed c) tetany. d) relaxation of smooth muscle when stretched. e) formation of new desmosomes.
Imagine that you are designing a two-segment robot arm that has the sole function of bending and straightening at a single joint. When designing the robot joint, which joint in the human body would you try to copy?
What features would your robot joint share with the biological joint? Would mobility or stability be your priority? What will be an ideal response?
In the following coronal MRI through the lower head and neck, the arrow points to the:
A) vestibule. B) piriform recess. C) trachea. D) vallecula. E) retropharyngeal space.
The waste gas taken away from all cells of the body by the blood is ________.
Fill in the blank(s) with the appropriate word(s).