ANATOMY
THE VERTEBRAL COLUMN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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9
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12
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Detailed explanation-1: -The sacrum is made of five fused vertebrae configured as an inverted triangular bone that is concave anteriorly and convex posteriorly.
Detailed explanation-2: -Answer: The adult vertebral column consists of 24 vertebrae, plus the sacrum and coccyx. The vertebrae are subdivided into cervical, thoracic, and lumbar regions. There are seven cervical vertebrae (C1–C7), 12 thoracic vertebrae (T1–T12), and five lumbar vertebrae (L1–L5).
Detailed explanation-3: -The coccyx is composed of three, four (most commonly) or five fused, rudimentary vertebrae.
Detailed explanation-4: -The vertebral column consists of 24 bones, each called a vertebra, plus the fused vertebrae of the sacrum and coccyx. The thoracic cage includes 12 pairs of ribs, and the sternum, the flattened bone of the anterior chest.
Detailed explanation-5: -The sacrum forms the posterior pelvic wall and strengthens and stabilizes the pelvis. Joined at the very end of the sacrum are two to four tiny, partially fused vertebrae known as the coccyx or “tail bone". The coccyx provides slight support for the pelvic organs but actually is a bone of little use.