Out of 'X' pairs of ribs in humans, only 'Y' pairs are true ribs. Select the option that…
Biology · NEET · NTA Exams — Locomotion and Movement
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 provided their explanation:
- X = 12, Y = 7 True ribs are attached dorsally to vertebral column and ventrally to the sternum
- X = 12, Y = 5 True ribs are attached dorsally to vertebral column and sternum on the two ends
- X = 24, Y = 7 True ribs are dorsally attached to vertebral column but are free on ventral side
- X = 24, Y = 12 True ribs are dorsally attached to vertebral column but are free on ventral side
Answer
(A) X = 12, Y = 7 True ribs are attached dorsally to vertebral column and ventrally to the sternum
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