Not realizing that its surface was hot, a woman has quickly withdrawn her hand from the surface of a bowl that she was removing from a microwave. Which of the following phenomena has facilitated the rapid movement of her hand in response to the painful stimulus?
A) Her midbrain has rapidly responded to the nociceptive stimuli and induced arm flexion.
B) The withdrawal reflex of her peripheral nervous system has quickly mediated between afferent and effector neurons.
C) The forebrain has mediated a protective spiral cord reflex.
D) Her CNS has enacted a protective response received by neurons that innervate her arm muscles.

Question

Quizplus · Accepted Answer

A reflex is a CNS-mediated response to a painful stimulus that involves an afferent neuron and an effector neuron. The midbrain and forebrain do not necessarily participate in the sensory or motor components of the response.

Not Realizing That Its Surface Was Hot, a Woman Has