Which of the following correctly maps the number of spinal nerve pairs? A) 6 pairs cervical, 10 pairs thoracic, 4 pairs lumbar B) 8 pairs cervical, 12 pairs thoracic, 5 pairs lumba... Which of the following correctly maps the number of spinal nerve pairs? A) 6 pairs cervical, 10 pairs thoracic, 4 pairs lumbar B) 8 pairs cervical, 12 pairs thoracic, 5 pairs lumbar C) 10 pairs cervical, 5 pairs sacral, 7 pairs lumbar D) 8 pairs cervical, 12 pairs thoracic, 1 pair coccygeal
Understand the Problem
The question is asking for the correct mapping of the number of spinal nerve pairs across different regions of the spine. We need to identify which option accurately describes the anatomical distribution of spinal nerves.
Answer
8 pairs cervical, 12 pairs thoracic, 1 pair coccygeal (Option D).
The correct mapping of spinal nerve pairs is 8 pairs cervical, 12 pairs thoracic, 1 pair coccygeal, which corresponds to option D.
Answer for screen readers
The correct mapping of spinal nerve pairs is 8 pairs cervical, 12 pairs thoracic, 1 pair coccygeal, which corresponds to option D.
More Information
There are 31 pairs of spinal nerves in humans, divided into 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal pairs.
Tips
A common mistake is miscounting the spinal nerve pairs, especially between the lumbar and sacral regions. Always verify the counts with a reliable anatomy source.
Sources
- How many pairs of spinal nerves are there in humans? - BYJU'S - byjus.com
- Spinal Cord: Anatomy, Function & Structure - Cleveland Clinic - my.clevelandclinic.org
- Anatomy of the Spinal Cord (Section 2, Chapter 3) Neuroscience - nba.uth.tmc.edu
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