In mammals, the number of cervical vertebrae is always
A
7
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B
9
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C
1
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D
12
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Solution
The correct option is A 7
Cervical vertebrae are the vertebrae present in the neck region of the body, immediately below the skull.
In mammals, the number of cervical vertebrae is always 7 in number.
The cervical vertebrae are numbered as follows. The first two, C1 and C2, are highly specialized and are given unique names: atlas and axis, respectively. C3-C7 are more classic vertebrae, having a body, pedicles, laminae, spinous processes, and facet joints.