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Out of 'X' pairs of ribs in human only '...

Out of 'X' pairs of ribs in human only 'Y' pairs are true ribs. Select the option that correctly represents values of X and Y and provides their explanation

A

X=12, Y=5, True ribs are attaced dorsally to vertebral column and sternum on the two ends

B

X=24, Y=7, True ribs are dorsally attached to vertebral column but are free on ventral side.

C

X=24, Y=12, True ribs are dorsally attached to vertebral column but are free on ventral side

D

X=12, Y=7, True ribs are attached dorsally to ventral column and ventrally to the sternum

Text Solution

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The correct Answer is:
D
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