Question

use the following information to answer question 11. motor and sensory pathways from foot to brain to brain from brain from foot to foot spinal cord a barefoot person by a campfire accidentally steps on a hot coal and then feels the sharp pain of the burn. 11. if there had been a blockage at point w prior to the accident, the person would have felt a. pain and could have moved his foot b. no pain and could have moved his foot c. no pain and would not have been able to move his foot d. pain and would not have been able to move his foot 12. response to stimulus within the central nervous system (cns) differs from a response initiated by a reflex because the former a. undergoes depolarization b. has greater speed c. includes interpretation of information d. does not release acetylcholine hint: the former refers to the cns; the latter refers to the reflex arc. if you quickly choose the latter, you will quickly select the wrong answer.

Explanation:

1. Point W is part of the reflex - arc pathway. A blockage at this point would disrupt the motor response (movement of the foot) as the signal from the spinal cord to the foot would be interrupted. Also, the pain - sensing pathway (from foot to brain) is separate from the motor pathway at this level, so the person would still feel pain.
2. A response within the central nervous system involves higher - order processing such as interpretation of information. Reflexes are simple, involuntary responses that do not involve such complex interpretation.

Answer:

1. D. pain and would not have been able to move his foot
2. C. includes interpretation of information