Md3 Exam 2 Final Examination Test 2026 Full Question Bank With Verified Solutions

MD3 EXAM 2 FINAL EXAMINATION TEST
2026 FULL QUESTION BANK WITH
VERIFIED SOLUTIONS

⩥ dorsal root. Answer: carries sensory information into the spinal cord
--> Dorsal root ganglion: lies along the root and houses the cell bodies
of afferent sensory neurons


⩥ ventral root. Answer: carries motor information out of the spinal cord
--> No ganglion because the cell bodies of motor neurons are located in
spinal cord = nucleus


⩥ What is a spinal nerve?. Answer: The coming together of the ventral
and dorsal root on either side of the spinal cord that allows the spinal
nerve to carry both sensory and motor neurons.


⩥ What type of information do spinal nerves carry?. Answer: Both
sensory and motor information travels between the spinal cord and the
rest of the body.


⩥ How many pairs of spinal nerves are there?. Answer: There are 31
pairs of spinal nerves.

, ⩥ How many cervical nerve pairs are there?. Answer: There are 8
cervical nerve pairs (C1-C8).


⩥ How many thoracic nerve pairs are there?. Answer: There are 12
thoracic nerve pairs (T1-T12).


⩥ How many lumbar nerve pairs are there?. Answer: There are 5 lumbar
nerve pairs (L1-L5).


⩥ How many sacral nerve pairs are there?. Answer: There are 5 sacral
nerve pairs (S1-S5).


⩥ How many coccygeal nerve pairs are there?. Answer: There is 1
coccygeal nerve pair (Co1).


⩥ Where does the spinal cord end?. Answer: The spinal cord ends at the
L1-L2 vertebrae.


⩥ What happens to spinal roots for nerves below the thoracic region?.
Answer: They originate at the end of the spinal cord (L1-L2) and travel
down the vertebral canal until they can exit at the vertebrae they are
named after.


⩥ Where does the S1 spinal root originate?. Answer: The S1 spinal root
originates at the end of the spinal cord (L1-L2).