Beneski Bio 259 Final questions with correct answers 2024
1.What are communication hubs for the PNS to the CNS: Spinal Nerves
2.how many pairs of spinal nerves are there: 31
3.how many spinal nerves are there not including pairs: 62
4.how are the spinal nerves named: after the vertebrae below each spinal nerve
(excluding C1-C7)
5.how many cervical vertebrae are there: 8 (C1-C8)
6.how many thoracic vertebrae are there: 12 (T1-T12)
7.how many coccygeal spinal nerves are there: 1 (Cx1)
8.how many roots does the spinal cord have: 2 (dorsal and ventral)
9.What does the dorsal root take care of: only sensory information (sensory
neurons only, information coming into CNS)
10.What does the ventral root take care of: only motor information (motor neurons only. information coming from CNS)
11.what are rami: arms extending out of intervertebral foramina
12.what are rami separated by: body region
13.what are the dorsal and ventral ramus: sensory and motor neurons found in
rami
14. which way does information go in the rami and spinal nerves as a whole-