Which of the following is correct for the pairs of cervical nerves and number of cervical vertebrae respectively? |
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a) |
8 and 7 |
b) |
16 and 7 |
c) |
7 and 7 |
d) |
7 and 16 |
Which of the following is correct for the pairs of cervical nerves and number of cervical vertebrae respectively? |
|||||||
a) |
8 and 7 |
b) |
16 and 7 |
c) |
7 and 7 |
d) |
7 and 16 |
(a)
Ideally, there are as many pairs of spinal nerves as the number of vertebrae. However, in man 31 pairs of spinal nerves are present including 8 pairs of cervical nerves, 12 pairs of thoracic nerves, 5 pairs of lumbar nerves, 5 pairs of sacral nerves and 1 pair of coccygeal nerves.
The cervical vertebrae are the vertebrae of neck region. Whether the neck is short as in mouse or long as in a camel or giraffe, their number is seven in all mammals (including man) except some, sloths and the sea cows.