Difficulty: Medium
Average Score: 62%
Simulated
Which of the following physiologic principles would be considered a function of the somatic nervous system?
Correct answer
C
Rationale
The correct answer is C: the act of typing a report using a computer keyboard. The somatic nervous system controls voluntary movements of skeletal muscles, such as typing on a keyboard. This involves conscious control and coordination of muscle movements. Choices A, B, and D involve reflex actions controlled by the autonomic nervous system or spinal reflex arcs, not the somatic nervous system. Choice A is an example of a monosynaptic reflex arc, choice B involves the autonomic nervous system controlling the heart, and choice D is an example of a withdrawal reflex.