Which type of synovial joint is absent in frog but is responsible for movement of thumb in many direct in mammals?

Question

Which type of synovial joint is absent in frog but is responsible for movement of thumb in many direct in mammals? (A) Pivot joint (B) Saddle joint (C) Ball and socket joint (D) Condyloid joint

Tardigrade Admin · Accepted Answer

Saddle joint resembles ball and socket joint (shoulder and hip joints) but neither the ball nor the socket is couplet in it. This joint is not found in frog and is present between carpels and metacarpels of thumb of mammals, that is why mammals are able to move thumb is many directions.

Q. Which type of synovial joint is absent in frog but is responsible for movement of thumb in many direct in mammals?

Pivot joint

Saddle joint

Ball and socket joint

Condyloid joint

Saddle joint resembles ball and socket joint (shoulder and hip joints) but neither the ball nor the socket is couplet in it. This joint is not found in frog and is present between carpels and metacarpels of thumb of mammals, that is why mammals are able to move thumb is many directions.