Histology - USMLE- Muscle Tissue
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- 1.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
- 2.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
- 3.Where are satellite cells located ?
- A.
On individual muscle fibres
- B.
On a primary muscle bundle
- C.
On the DCT of fascia
- 4.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
- 5.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
- 6.What is the outer connective tissue covering of a muscle?
- A.
Epimysium
- B.
Sarcoplasm
- C.
Perimysium
- D.
Sarcolemma
- E.
Endomysium
- 7.What is myosin?
- A.
Muscle fibers
- B.
Myofibrils
- C.
Myocardium
- D.
Myofilament
- E.
Muscle cell
- 8.Where is cardiac muscle found?
- A.
Myofilaments
- B.
Myosin
- C.
Muscle fibers
- D.
Myofibrils
- E.
Myocardium
- 9.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"
- 10.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"
- 11.What is released at a synapse?
- A.
Motor unit
- B.
Motor neuron
- C.
Motor end plate
- D.
Neuromuscular spindle
- E.
Neurotransmitter
- 12.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
- 13.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
- 14.What region is made of thin filaments?
- A.
A band
- B.
I band
- C.
Z line
- D.
H band
- E.
M line
- 15.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
- 16.What is the plasma membrane of a muscle cell called?
- A.
Endomysium
- B.
Sarcolemma
- C.
Sarcoplasm
- D.
Perimysium
- E.
Epimysium
- 17.What are the thin filaments?
- A.
Myocardium
- B.
Myofibrils
- C.
Myofilaments
- D.
Muscle fibers
- E.
Myosin
- 18.Which of the following is composed of skeletal muscle?
- A.
Tongue
- B.
Blood vessel
- C.
Walls of the visceral organs
- D.
Lower esophagus
- E.
Heart
- 19.What type of muscle is composed of spindle shaped cells?
- A.
Skeletal muscle
- B.
Cardiac muscle
- C.
Smooth muscle
- D.
Both "a" and "b"
- E.
"a" "b" and "c"
- 20.What type of muscle is always multinucleated?
- A.
Skeletal muscle
- B.
Cardiac muscle
- C.
Smooth muscle
- D.
Both "a" and "b"
- E.
"a" "b" and "c"
- 21.Which fiber type is smaller in diameter?
- A.
Red fibers
- B.
White fibers
- C.
Intermediate fibers
- D.
All of the above
- E.
None of the above
- 22.Which fiber type fatigues more readily?
- A.
Red fibers
- B.
White fibers
- C.
Intermediate fibers
- D.
All of the above
- E.
None of the above
- 23.What type of muscle probably predominates in Charles Atlas, the worlds most famous power weight lifter?
- A.
Red fibers
- B.
White fibers
- C.
Intermediate fibers
- D.
All of the above
- E.
None of the above
- 24.What is line that bisects the light band in muscle?
- A.
A band
- B.
I band
- C.
Z line
- D.
H band
- E.
M line
- 25.What is the name of the tissue which surrounds muscle fascicles?
- A.
Perimysium
- B.
Periosteum
- C.
Perichondrium
- D.
Perineurium
- E.
Endosteum
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