Histology Testbank: Muscle 6

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.
Which fiber type is seen in smooth muscle?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above

2.
A sarcomere is defined as the segment from _____ to ____?
a. A band
b. I band
c. Z line
d. H band
e. M line

3.
What are the bundle of longitudinal contractile elements within a muscle cell called?
a. Myofilaments
b. Myosin
c. Muscle fibers
d. Myofibrils
e. Myocardium

Click here for answers and detailed explanations.