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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). Click here for answers and detailed explanations.
1.
What is the cytoplasm of a muscle cell?
a. Epimysium
b. Sarcolemma
c. Endomysium
d. Sarcoplasm
e. Perimysium
2.
What is another term for muscle cells?
a. Myofilaments
b. Myosin
c. Muscle fibers
d. Myofibrils
e. Myocardium
3.
Which of the following contains a substantial amount of smooth muscle?
a. Upper esophagus
b. Blood vessels
c. Heart
d. Biceps muscle
e. Tongue
4.
What type of muscle contains actin and myosin?
a. Skeletal muscle
b. Cardiac muscle
c. Smooth muscle
d. Both "a" and "b"
e. "a" "b" and "c"
5.
What is a single neuron and the aggregation of muscle fibers innervated by that single neuron called?
a. Motor unit
b. Motor neuron
c. Motor end plate
d. Neuromuscular spindle
e. Neurotransmitter
6.
Which fiber type has a lot of mitochondria?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above
7.
Which fiber type uses more aerobic metabolism?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above
8.
What is the light band in muscle?
a. A band
b. I band
c. Z line
d. H band
e. M line
9.
What type of muscle contains sarcomeres?
a. Skeletal muscle
b. Cardiac muscle
c. Smooth muscle
d. Both "a" and "b"
e. "a" "b" and "c"
10.
What type of muscle has branching cells?
a. Skeletal muscle
b. Cardiac muscle
c. Smooth muscle
d. Both "a" and "b"
e. "a" "b" and "c"
Click here for answers and detailed explanations.
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