Question

1. How many vertebrae in all, do we have? Categorise them on the basis of their location and give the specific number in each category?​

Answer 1

Answer :

There are 26 vertebrae in our body.

$\bigstar$ Cervical vertebrae are in the neck region; they are seven in number.

$\bigstar$ Thoracic vertebrae are present in the thoracic region of the trunk; they are twelve in number.

$\bigstar$ Lumbar vertebrae are present in the abdominal region of the trunk; they are five in number.

$\bigstar$ Sacrum is the large triangular bone at the end of vertebral column in the hip region; it is only one.

$\bigstar$ Coccyx is the small bone at the end, which is the vestigeal tail bone in human being.

Note :

$\bigstar$ Our vertebral column is formed by 26 serially arranged unit called vertebrae and is dorsally placed.

$\bigstar$ Each vertebrae has a centre hollow portion through which the spinal cord passes.

Answer 2

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Explanation:

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