alleryThe number of pairs of cranial nerves in humans is:
A10
B12
C31
D33
Answer & Solution
Correct answer: B. 12
1. Humans have 12 PAIRS of cranial nerves arising directly from the brain.
2. They serve the head, neck and some thoracic / abdominal organs (vagus).
3. 31 pairs of SPINAL nerves arise from the spinal cord (cervical 8, thoracic 12, lumbar 5, sacral 5, coccygeal 1).
_Source: syllabus Science Ch 6 §6.1.3 Spinal Cord and Cranial Nerves_
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