1820. Which of the following adaptations will be apt to increase the work capacity at high altitude_________________?

A. Increased workload, decreasing duration of exercise
B. Increased workload, increasing duration of exercise
C. Decreasing workload, increasing duration of exercise
D. Decreasing workload, decreasing duration of exercise
✅ The correct answer is option C. Decreasing workload, increasing duration of exercise.

1841. Which of the following is not true for myelinated nerve fibers______________?

A. Impulse through myelinated fibers is slower than non- myelinated fibers
B. Membrane currents are generated at nodes of Ranvier
C. Saltatory conduction of impulses is seen
D. Local anesthesia is effective only when the nerve is not covered by myelin sheath
✅ The correct answer is option A. Impulse through myelinated fibers is slower than non- myelinated fibers.