Instructions: For each histology question, pick the one best answer. This histology test bank is also useful for the histology questions on the USMLE (USMLE step 1).
1.
What is the connective tissue covering of an individual muscle fiber?
a. Sarcoplasm
b. Perimysium
c. Endomysium
d. Epimysium
e. Sarcolemma
2.
What are the thick filaments composed of?
a. Myofilaments
b. Myosin
c. Muscle fibers
d. Myofibrils
e. Myocardium
3.
Which of the following is composed of cardiac muscle?
a. Biceps muscle
b. Tongue
c. Heart
d. Upper esophagus
e. Walls of the visceral organs
4.
What type of muscle contains centrally placed nuclei?
a. Smooth muscle
b. Cardiac muscle
c. Skeletal muscle
d. Both a and b are correct
e. a, b, and c are correct
5.
What is the point that a neuron contacts a muscle called?
a. Motor unit
b. Motor neuron
c. Neuromuscular junction
d. Neuromuscular spindle
e. Neurotransmitter
6.
Which fiber type makes up slow-twitch muscle?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above
7.
Which fiber type uses anaerobic metabolism the most?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above
8.
What is the dark band in muscle?
a. A band
b. I band
c. Z line
d. H band
e. M line
9.
What bisects the H band?
a. A band
b. I band
c. Z line
d. E band
e. M line
10.
What type of muscle has intercalated discs?
a. Skeletal muscle
b. Cardiac muscle
c. Smooth muscle
d. Both a and b are correct
e. a, b, and c are correct
If you see an error, please contact me, Sarah Bellham, at Sarah-AT-histology-world.com (replace "-AT-" with @) and let me know.
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