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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 connective tissue covering of a muscle fascicle?
a. Sarcolemma
b. Endomysium
c. Epimysium
d. Sarcoplasm
e. Perimysium
2.
What is actin?
a. Myofilament
b. Myosin
c. Muscle fibers
d. Myofibrils
e. Myocardium
3.
Which of the following is composed of smooth muscle?
a. Upper esophagus
b. Heart
c. Tongue
d. Biceps muscle
e. Walls of the visceral organs
4.
What is a receptor in muscle?
a. Motor unit
b. Motor neuron
c. Motor end plate
d. Neuromuscular spindle
e. Neurotransmitter
5.
Which fiber type is larger in diameter?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above
6.
Which fiber type is make up fast-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 has more myoglobin?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above
8.
Which fiber type gets its energy primarily from glycogen?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above
9.
Which fiber type is seen in skeletal muscle?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above
10.
What is line that bisects the dark band in muscle?
a. A band
b. I band
c. Z line
d. H band
e. M line
Click here for answers and detailed explanations.
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