Multiple Choice
How many phalanges are present in the human foot?
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7. The Skeletal System
Introduction to the Skeleton
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many pairs of spinal nerves are present in the human body?
A
12 pairs
B
15 pairs
C
24 pairs
D
31 pairs
Verified step by step guidance1
Understand that spinal nerves are part of the peripheral nervous system and emerge from the spinal cord.
Recognize that spinal nerves are categorized based on the region of the spine they emerge from: cervical, thoracic, lumbar, sacral, and coccygeal.
Recall the number of pairs of spinal nerves in each region: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal.
Add the number of pairs from each region to find the total number of spinal nerve pairs: 8 + 12 + 5 + 5 + 1.
Conclude that the total number of spinal nerve pairs in the human body is 31 pairs.
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