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Centrum of 8^(th) vertebra of frog is...

Centrum of `8^(th)` vertebra of frog is

A

Precocious

B

Acoclgus

C

Amphiplatyan

D

Amphicoelous

Text Solution

Verified by Experts

The correct Answer is:
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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