NEET PG DENTAL EXAM

HEAD NECK

ORBIT NOSE EAR

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What happens to the nine extra bones that we are born with?
A
They fuse into the sacrum and the lumbar region
B
They fuse into the sacral and coccygeal (coccyx) region
C
They fuse into the thoracic and lumbar region
D
They fuse into the cervical and thoracic region
Explanation: 

Detailed explanation-1: -Individually, the sacrum and coccyx are composed of smaller bones that fuse (grow into a solid bone mass) by age 30.

Detailed explanation-2: -Sacrum. A spade-shaped bone that is formed by the fusion of 5 originally separate sacral vertebrae. Coccyx (also called the tailbone). This is formed by the fusion of 4 originally separated coccygeal bones.

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