Muscles Trivia Questions! Ultimate Quiz
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Questions and Answers
- 1.
What is the connective tissue covering of a muscle fascicle?
- A.
Sarcolemma
- B.
Endomysium
- C.
Perimysium
- D.
Epimysium
Correct Answer
C. PerimysiumExplanation
The outer connective tissue covering of a muscle is the epimysium. Within the muscle, there are subdivisions called fascicles. The perimysium surrounds these muscle fascicles. The endomysium is the covering of an individual muscle fiber. The sarcolemma is the plasma membrane of a muscle cell. The sarcoplasm is the cytoplasm of a muscle cell.Rate this question:
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- 2.
What is actin?
- A.
Myofilament
- B.
Myosin
- C.
Myocardium
- D.
Myofibrils
Correct Answer
A. MyofilamentExplanation
Myofilaments are the contractile protein within a muscle cell. The myofilaments are actin and myosin. The thin filaments are actin and the thick filaments are myosin. The muscle cell is a muscle fiber. The term "muscle cell" and "muscle fiber" are synonymous. A myofibril is a longitudinal bundle of myofilaments within a muscle cell. The myocardium is the muscular layer of the heart. Thus, the myocardium is composed of cardiac muscle.Rate this question:
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- 3.
Which of the following is composed of smooth muscle?
- A.
Upper esophagus
- B.
Heart
- C.
Tongue
- D.
Walls of the visceral organs
Correct Answer
D. Walls of the visceral organsExplanation
There are two chief categories of muscle: striated and non-striated muscle (smooth muscle). Striated muscle can be sub-categorized into cardiac muscle and skeletal muscle. The tongue, biceps muscle, and upper esophagus are made of striated muscle. The heart is composed of cardiac muscle. Nonstriated muscle is also called smooth muscle. Smooth muscle is involuntary muscle. It is found in viscera and blood vessels.Rate this question:
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- 4.
What is a receptor in muscle?
- A.
Motor unit
- B.
Neuromuscular spindle
- C.
Motor end plate
- D.
Motor neuron
Correct Answer
B. Neuromuscular spindleExplanation
A single motor neuron and the aggregation of muscle fibers innervated by that single neuron is called the motor unit. A motor neuron is a neuron which innervates a muscle cell. The point of contact where a neuron contacts a muscle is the motor end plate. A neuromuscular spindle is a receptor which is sensitive to stretching of the muscle. A neurotransmitter is the chemical released by a nerve at a synapse.Rate this question:
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- 5.
Which fiber type is make up fast-twitch muscle?
- A.
Red fibers
- B.
White fibers
- C.
Intermediate fibers
- D.
None of the above
Correct Answer
B. White fibersExplanation
Skeletal muscle fibers can be classified as red fibers, white fibers or intermediate fibers. Red fibers are smaller in diameter; white fibers are larger in diameter. Red fibers have more mitochondria than white fibers. Red fibers make up slow-twitch muscle; white fibers make up fast-twitch muscle. Red fibers are more resistant to fatigue than are white fibers. Red fibers have more myoglobin (oxygen binding pigment) than white fibers. White fibers store glycogen and use anaerobic metabolism.
Red fiber and slow twitch muscle is for endurance.
White fiber and fast twitch muscle is for a burst of power.Rate this question:
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- 6.
Which fiber type has more myoglobin?
- A.
Intermediate fibers
- B.
White fibers
- C.
Red fibers
- D.
None of the above
Correct Answer
C. Red fibersExplanation
Skeletal muscle fibers can be classified as red fibers, white fibers or intermediate fibers. Red fibers are smaller in diameter; white fibers are larger in diameter. Red fibers have more mitochondria than white fibers. Red fibers make up slow-twitch muscle; white fibers make up fast-twitch muscle. Red fibers are more resistant to fatigue than are white fibers. Red fibers have more myoglobin (oxygen binding pigment) than white fibers. White fibers store glycogen and use anaerobic metabolism.
Red fiber and slow twitch muscle is for endurance.
White fiber and fast twitch muscle is for a burst of power.Rate this question:
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- 7.
Which fiber type gets its energy primarily from glycogen
- A.
White fibers
- B.
Red fibers
- C.
Intermediate fibers
Correct Answer
A. White fibersExplanation
Skeletal muscle fibers can be classified as red fibers, white fibers or intermediate fibers. Red fibers are smaller in diameter; white fibers are larger in diameter. Red fibers have more mitochondria than white fibers. Red fibers make up slow-twitch muscle; white fibers make up fast-twitch muscle. Red fibers are more resistant to fatigue than are white fibers. Red fibers have more myoglobin (oxygen binding pigment) than white fibers. White fibers store glycogen and use anaerobic metabolism.
Red fiber and slow twitch muscle is for endurance.
White fiber and fast twitch muscle is for a burst of power.Rate this question:
-
- 8.
Which fiber type is seen in skeletal muscle?
- A.
Red fibers
- B.
White fibers
- C.
Intermediate fibers
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Skeletal muscle fibers can be classified as red fibers, white fibers or intermediate fibers. Red fibers are smaller in diameter; white fibers are larger in diameter. Red fibers have more mitochondria than white fibers. Red fibers make up slow-twitch muscle; white fibers make up fast-twitch muscle. Red fibers are more resistant to fatigue than are white fibers. Red fibers have more myoglobin (oxygen binding pigment) than white fibers. White fibers store glycogen and use anaerobic metabolism.
Red fiber and slow twitch muscle is for endurance.
White fiber and fast twitch muscle is for a burst of power.Rate this question:
-
- 9.
What is line that bisects the dark band in muscle?
- A.
A band
- B.
I band
- C.
Z line
- D.
H band
Correct Answer
D. H bandExplanation
The A band is the darker staining band. The I band is the light band. The I band is made of thin filaments. The Z line runs through the I band. The H band bisects the A band. The M line runs through the H band.
A sarcomere is the segment that runs from Z line to Z line.Rate this question:
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- 10.
What is released at a synapse?
- A.
Motor unit
- B.
Motor end plate
- C.
Neurotransmitter
- D.
Neuromuscular spindle
Correct Answer
C. NeurotransmitterExplanation
A single motor neuron and the aggregation of muscle fibers innervated by that single neuron is called the motor unit. A motor neuron is a neuron which innervates a muscle cell. The point of contact where a neuron contacts a muscle is the motor end plate. A neuromuscular spindle is a receptor which is sensitive to stretching of the muscle. A neurotransmitter is the chemical released by a nerve at a synapse.Rate this question:
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- 11.
Which fiber type is more resistant to fatigue?
- A.
Red fibers
- B.
White fibers
- C.
Intermediate fibers
- D.
All of the above
Correct Answer
A. Red fibersExplanation
Skeletal muscle fibers can be classified as red fibers, white fibers or intermediate fibers. Red fibers are smaller in diameter; white fibers are larger in diameter. Red fibers have more mitochondria than white fibers. Red fibers make up slow-twitch muscle; white fibers make up fast-twitch muscle. Red fibers are more resistant to fatigue than are white fibers. Red fibers have more myoglobin (oxygen binding pigment) than white fibers. White fibers store glycogen and use anaerobic metabolism.
Red fiber and slow twitch muscle is for endurance.
White fiber and fast twitch muscle is for a burst of power.Rate this question:
-
- 12.
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
Correct Answer
A. Red fibersExplanation
Skeletal muscle fibers can be classified as red fibers, white fibers or intermediate fibers. Red fibers are smaller in diameter; white fibers are larger in diameter. Red fibers have more mitochondria than white fibers. Red fibers make up slow-twitch muscle; white fibers make up fast-twitch muscle. Red fibers are more resistant to fatigue than are white fibers. Red fibers have more myoglobin (oxygen binding pigment) than white fibers. White fibers store glycogen and use anaerobic metabolism.
Red fiber and slow twitch muscle is for endurance.
White fiber and fast twitch muscle is for a burst of powerRate this question:
-
- 13.
What region is made of thin filaments?
- A.
A band
- B.
I band
- C.
H band
- D.
M line
Correct Answer
B. I bandExplanation
The A band is the darker staining band. The I band is the light band. The I band is made of thin filaments. The Z line runs through the I band. The H band bisects the A band. The M line runs through the H band.
A sarcomere is the segment that runs from Z line to Z line.Rate this question:
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- 14.
On a cross section of a muscle, how many thin filaments surround each thick filament?
- A.
2
- B.
4
- C.
6
- D.
8
Correct Answer
C. 6Explanation
On a cross section of a muscle, each thick filament is surrounded by 6 thin filaments.Rate this question:
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- 15.
Which one do you like?
- A.
Endomysium
- B.
Sarcoplasm
- C.
Sarcolemma
- D.
Perimysium
Correct Answer
C. SarcolemmaExplanation
The outer connective tissue covering of a muscle is the epimysium. Within the muscle, there are subdivisions called fascicles. The perimysium surrounds these muscle fascicles. The endomysium is the covering around an individual muscle fiber. The sarcolemma is the plasma membrane of a muscle cell. The sarcoplasm is the cytoplasm of a muscle cell.Rate this question:
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- 16.
Which one do you like?
- A.
Skeletal muscle
- B.
Cardiac muscle
- C.
Smooth muscle
- D.
All of above
Correct Answer
A. Skeletal muscleExplanation
Skeletal muscle is multinucleated. The nuclei are seen on the periphery. Occasionally, cardiac muscle is bi-nucleated.Rate this question:
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- 17.
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
Correct Answer
B. White fibersExplanation
Skeletal muscle fibers can be classified as red fibers, white fibers or intermediate fibers. Red fibers are smaller in diameter; white fibers are larger in diameter. Red fibers have more mitochondria than white fibers. Red fibers make up slow-twitch muscle; white fibers make up fast-twitch muscle. Red fibers are more resistant to fatigue than are white fibers. Red fibers have more myoglobin (oxygen binding pigment) than white fibers. White fibers store glycogen and use anaerobic metabolism.
Red fiber and slow twitch muscle is for endurance.
White fiber and fast twitch muscle is for a burst of powerRate this question:
-
- 18.
What type of muscle contains centrally placed nuclei?
- A.
Smooth muscle
- B.
Cardiac muscle
- C.
Both Cardiac muscle &Smooth muscle
- D.
Skeletal muscle
Correct Answer
C. Both Cardiac muscle &Smooth muscleExplanation
Skeletal muscle fibers are multinucleated. The nuclei are located on the periphery of the cell. In cardiac muscle, the nucleus is located centrally. In smooth muscle, there is also a centrally placed nucleus.
PEARL from Sarah Bellham: This is an important point, as both skeletal muscle and cardiac muscle are striated. The centrally placed nucleus seen in cardiac muscle is one of the things that can be used to distinguish between the two.Rate this question:
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- 19.
Which fiber type uses more anaerobic metabolism?
- A.
Red fibers
- B.
White fibers
- C.
Intermediate fibers
- D.
All of the above
Correct Answer
B. White fibersExplanation
Skeletal muscle fibers can be classified as red fibers, white fibers or intermediate fibers. Red fibers are smaller in diameter; white fibers are larger in diameter. Red fibers have more mitochondria than white fibers. Red fibers make up slow-twitch muscle; white fibers make up fast-twitch muscle. Red fibers are more resistant to fatigue than are white fibers. Red fibers have more myoglobin (oxygen binding pigment) than white fibers. White fibers store glycogen and use anaerobic metabolism.
Red fiber and slow twitch muscle is for endurance.
White fiber and fast twitch muscle is for a burst of power.Rate this question:
-
- 20.
What bisects the H band
- A.
A band
- B.
M line
- C.
E band
- D.
Z line
Correct Answer
B. M lineExplanation
The A band is the darker staining band. The I band is the light band. The I band is made of thin filaments. The Z line runs through the I band. The H band bisects the A band. The M line runs through the H band.
A sarcomere is the segment that runs from Z line to Z lineRate this question:
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- 21.
What is the cytoplasm of a muscle cell?
- A.
Epimysium
- B.
Sarcolemma
- C.
Sarcoplasm
- D.
Perimysium
Correct Answer
C. SarcoplasmExplanation
The outer connective tissue covering of a muscle is the epimysium. Within the muscle, there are subdivisions called fascicles. The perimysium surrounds these muscle fascicles. The endomysium is the covering around an individual muscle fiber. The sarcolemma is the plasma membrane of a muscle cell. The sarcoplasm is the cytoplasm of a muscle cell.Rate this question:
-
- 22.
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.
Neurotransmitter
Correct Answer
A. Motor unitExplanation
A single motor neuron and the aggregation of muscle fibers innervated by that single neuron is called the motor unit. A motor neuron is a neuron which innervates a muscle cell. The point of contact where a neuron contacts a muscle is the motor end plate. A neuromuscular spindle is a receptor which is sensitive to stretching of the muscle. A neurotransmitter is the chemical released by a nerve at a synapse.Rate this question:
-
- 23.
What type of muscle contains sarcomeres?
- A.
Skeletal muscle
- B.
Cardiac muscle
- C.
Smooth muscle
- D.
Both Skeletal muscle & Cardiac muscle
Correct Answer
D. Both Skeletal muscle & Cardiac muscleExplanation
Both skeletal muscle and cardiac muscle have sarcomeres. Smooth muscle has no sarcomeres.Rate this question:
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- 24.
A sarcomere is defined as the segment from _____ to ____?
- A.
A band
- B.
Z line
- C.
H band
- D.
I band
Correct Answer
B. Z lineExplanation
The A band is the darker staining band. The I band is the light band. The I band is made of thin filaments. The Z line runs through the I band. The H band bisects the A band. The M line runs through the H band.
A sarcomere is the segment that runs from Z line to Z line.Rate this question:
-
- 25.
What are the bundle of longitudinal contractile elements within a muscle cell called?
- A.
Myofilaments
- B.
Myocardium
- C.
Myofibrils
- D.
Myosin
Correct Answer
C. MyofibrilsExplanation
Myofilaments are the contractile protein within a muscle cell. The myofilaments are actin and myosin. The thin filaments are actin and the thick filaments are myosin. The muscle cell is a muscle fiber. The term "muscle cell" and "muscle fiber" are synonymous. A myofibril is a longitudinal bundle of myofilaments within a muscle cell. Myocardium is the muscular layer of the heart. Thus, the myocardium is composed of cardiac muscle.Rate this question:
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