BIO 210 Lecture Exam #4 UPDATED Study Guide

BIO 210 Lecture Exam #4 UPDATED
Study Guide QUESTIONS AND
CORRECT ANSWERS
A posterior root contains


A) sensory axons only
B) motor axons only
C) a mix of sensory and motor axons
D) autonomic nervous system axons - CORRECT ANSWERS A)
sensory axons only


The white matter of the spinal cord is surrounded by gray matter.


A) True
B) False - CORRECT ANSWERS B) False


If a patient experiences numbness in the boundaries of a dermatome, it is
suggestive of damage to


A) the somatosensory cortex
B) the thalamus
C) one of the spinal funiculi
D) the anterior horn of grey matter in the spinal cord
E) a spinal nerve - CORRECT ANSWERS E) a spinal nerve


The plexuses that lie on either side of the neck are the __________ plexus.

, A) cervical
B) brachial
C) lumbar
D) radial
E) mandibular - CORRECT ANSWERS A) cervical


The largest and longest nerve in the body is the __________ nerve.


A) femoral
B) radial
C) sciatic
D) obturator
E) saphenous - CORRECT ANSWERS C) sciatic


Reflexes are described as


A) slow and spontaneous
B) spontaneous and self-initiating
C) pre-programmed and voluntary
D) rapid and involuntary - CORRECT ANSWERS D) rapid and
involuntary


Usually, awareness of the stimulus occurs before a reflex action has been
initiated.


A) True
B) False - CORRECT ANSWERS B) False