CNS Lecture Final Review (Post Midterm) 2026/2027 Study Guide – Professor-Style Questions & Answers

CNS LECTURE FINAL REVIEW (POST
MIDTERM)
1. How many spinal nerve pairs are in the cervical region?

*Answer* 8


2. How many spinal nerve pairs are in the thoracic region?

*Answer* 12


3. How many spinal nerve pairs are in the lumbar region?

*Answer* 5


4. How many spinal nerve pairs are there in the sacral region?

*Answer* 5


5. How many pairs of spinal nerves are there in the coccygeal region?

*Answer* 1


6. What structures are found in the epidural space?

*Answer* fat (and blood vessels)


7. What is found in the subdural space?

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, *Answer* blood/fluid (after injury)


8. What is found in the subarachnoid space?

*Answer* CSF


9. Where are the spinal cord enlargements found?

*Answer* cervical and lumbar (lumbosacral) regions


10. What is the purpose of the spinal cord enlargements?

*Answer* allow innervation to the limbs (increased neurons)


11. In what segments is the lateral horn present?

*Answer* T1-L2


12. What is the function of the lateral horn in the spinal cord?

*Answer* house preganglionic neurons of the ANS


13. What is Bell-Magendie's law?

*Answer* dorsal nerves carry sensory (atterent) signals; ventral nerves carry motor (etterent) signals


14. Which Rexed Laminae are in the sensory zones?

*Answer* I-VI
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