Muscle Fatigue

Q. Assertion: Repeated stimulation results in fatigue in voluntary muscles.
Reason: It occurs because of unavailability of ATP.

1. Only assertion is correct
2. Both assertion and reason are correct statements and reason is an incorrect explanation to the assertion
3. Both assertion and reason are incorrect
4. Both assertion and reason are correct statements and reason is the correct explanation to the assertion

Q. Muscle fatigue occurs due to

1. Shortage of substrates
2. Lack of exercise
3. Overwork
4. All of the above

Q. Assertion :A person undergoes fatigue very soon during exercise Reason: Muscle fibres undergo oxygen debt during exercise.

1. If both assertion and reason are true and reason is the correct explanation of assertion.
2. If both assertion and reason are true but reason is not the correct explanation of assertion.
3. If assertion Is true but reason is false.
4. If both assertion and reason are false.

Q. Which property of muscle fibres enable them to cause movement?

Q. Muscle fatigue occurs due to

1. Shortage of substrates
2. Lack of exercise
3. All of the above
4. Overwork

Q. Drop in the force of contraction of muscles due to prolonged stimulation is called

1. Muscle tonicity
2. Muscle dystrophy
3. Muscle atrophy
4. Muscle fatigue

Q. Which of the following changes Occurs when a skeletal muscle contracts?

1. A bands shorten
2. I bands shorten
3. Actin filaments contract
4. Z lines slide farther apart

Q. Drop in the force of contraction of muscles due to prolonged stimulation is called

1. Muscle tonicity
2. Muscle atrophy
3. Muscle fatigue
4. Muscle dystrophy

Q. Overworking our muscles can lead to muscle .

1. fatigue
2. dystrophy
3. atrophy
4. hypertrophy

Q. ATP provides energy for muscle contraction by allowing for

1. An action potential formation in the muscle cell
2. Cross bridge detachment of myosin from actin
3. Cross bridge detachment of myosin to actin
4. Release of $C{a}^{+2}$ from sarcoplasmic rectulum