Not realizing that its surface was hot, a woman has quickly withdrawn her hand from the surface of a bowl that she was removing from a microwave.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 phenomena has facilitated the rapid movement of her hand in response to the painful stimulus? Her midbrain has rapidly responded to the nociceptive stimuli and induced arm flexion. The withdrawal reflex, a spinal motor reflex, has quickly mediated a quick removal of the body part away from the offending stimulus. The forebrain has mediated a protective spinal cord reflex. Her ANS has enacted a protective response received by neurons that innervate her arm muscles.