BIO 253 EXAM 2 QUESTIONS AND
ANSWERS
Dorsal root has what kind of fibers - CORRECT ANSWERSensory Fibers (afferent)
Venerate Root has what kind of fibers - CORRECT ANSWERmotor fibers (efferent)
Significance of the phrenic nerve - CORRECT ANSWER-it's
housed in the cervical plexus innervates ...
Dorsal root has what kind of fibers - CORRECT ANSWER-
Sensory Fibers (afferent)
Venerate Root has what kind of fibers - CORRECT ANSWER-
motor fibers (efferent)
Significance of the phrenic nerve - CORRECT ANSWER-it's
housed in the cervical plexus innervates the diaphragm
Which plexus houses the ulnar - CORRECT ANSWER-Brachial
plexus
The ramus is - CORRECT ANSWER-large branches formed
after each spinal nerve emerges from the spinal cavity.
The dorsal ramus supplies somatic motor and sensory fibers to
smaller nerves that innervate the muscles and skin of the
posterior surface of the head, neck, and trunk.
Dermatome - CORRECT ANSWER-Region of the skin surface
area supplied by afferent (sensory) fibers of a given spinal
nerve
Myotomes movement - CORRECT ANSWER-Skeletal muscle
or muscles supplied by efferent (motor) fibers of a given spinal
nerve
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