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Question: Answered & Verified by Expert
In frog, the vertebra with an anterior convex surface (i.e., double convexties) is
BiologyStructural Organisation in AnimalsJIPMERJIPMER 2004
Options:
  • A atlas
  • B urostyle
  • C 8th vertebra
  • D 9 th vertebra
Solution:
2139 Upvotes Verified Answer
The correct answer is: 9 th vertebra
The 9 th or sacral vertebra is acoelous and highly specialised the anterior face is convex for this give greater strength to them, it would be given if its anterior end are hollowed out the transverse process are stout and downwardly directed. The ileum of the pelvic girdle articulates with the transverse process of 9 th vertebra.

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