NEET Solved Paper 2017 Question 85
Question: Out of ‘X’ pairs of ribs in humans only ‘Y’ pairs are true ribs. Select the option that correctly represents values of X and Y and provides their explanation:
Options:
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
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Answer:
Correct Answer: B
Solution:
- 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.