Centrum of `8^(th)` vertebra of frog isA. Precocious B. Acoclgus C. Amphiplatyan D. Amphicoelous

Centrum of `8^(th)` vertebra of frog isA. Precocious B. Acoclgus C.

1.	Centrum of `8^(th)` vertebra of frog isA. Precocious B. Acoclgus C. Amphiplatyan D. Amphicoelous
Answer» Correct Answer - D (i) Procoelus (Pro=front, coelus=cavity): Centrum is concave anterorely. e.g.:-Typical vertebrae of frog (2 to 7) -vertebrate of snakes and lizards. (ii) Amphicoelous(Amphi=both):Centrum is concave at both sides. e.g.:-8th vertebra of frog-Vertebrate of most fishes. (iii) Acolous or Amphiplatyan(Platy=flat):Centrum flat at both ends, without a concavity, e.g.-9th vertebra of frog- Vertebrae of mammals. (iv) Heterocoelous (hetro=asymmetrical):-The centrum is like a saddle. e.g.:-Vertebae of birds.

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Centrum of `8^(th)` vertebra of frog isA. Precocious B. Acoclgus C. Amphiplatyan D. Amphicoelous

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