Histology-World!

 

 

 

Histology Testbank: Muscle 2

 

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 outer connective tissue covering of a muscle?
a. Epimysium
b. Sarcoplasm
c. Perimysium
d. Sarcolemma
e. Endomysium

2.
What is myosin?
a. Muscle fibers
b. Myofibrils
c. Myocardium
d. Myofilament
e. Muscle cell

3.
Where is cardiac muscle found?
a. Myofilaments
b. Myosin
c. Muscle fibers
d. Myofibrils
e. Myocardium

4.
What type of muscle has visible cross striations?
a. Skeletal muscle
b. Cardiac muscle
c. Smooth muscle
d. Both "a" and "b"
e. "a" "b" and "c"

5.
What type of muscle is specialized for contraction?
a. Skeletal muscle
b. Cardiac muscle
c. Smooth muscle
d. Both "a" and "b"
e. "a" "b" and "c"

6.
What is released at a synapse?
a. Motor unit
b. Motor neuron
c. Motor end plate
d. Neuromuscular spindle
e. Neurotransmitter

7.
Which fiber type is more resistant to fatigue?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above

8.
Lance Armstrong is the seven time winner of the Tour de France. The Tour de France is a bicycle race which covers between 3500 to 4000 kilometers. What type of muscle fiber probably predominates in his legs?
a. Red fibers
b. White fibers
c. Intermediate fibers
d. All of the above
e. None of the above

9.
What region is made of thin filaments?
a. A band
b. I band
c. Z line
d. H band
e. M line

10.
On a cross section of a muscle, how many thin filaments surround each thick filament?
a. 2
b. 3
c. 4
d. 6
e. 8

Click here for answers and detailed explanations.