A)
X = 24, Y = 12 True ribs are dorsally attached to vertebral column but are free on ventral side
B)
X = 12, Y = 7 True ribs are attached dorsally to vertebral column and ventrally to the sternum
C)
X = 12, Y = 5 True ribs are attached dorsally to vertebral column and sternum on the two ends
D)
X = 24, Y = 7 True ribs are dorsally attached to vertebral column but are free on ventral side
Correct Answer: B
Solution :
| [B] In human, 12 pairs of ribs are present in which 7 pairs of ribs (1st to 7th pairs) are attached dorsally to vertebral column and ventrally to the sternum. |
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