The Atlanto-Axial Joint is an Example of A(n)________ Joint

Question

The atlanto-axial joint is an example of a(n)________ joint.
A) gliding
B) pivot
C) saddle
D) ellipsoid
E) hinge

Accepted Answer

The atlanto-axial joint is a pivot joint, as it allows for rotation of the head on the neck. Specifically, the axis (second cervical vertebra) has a peg-like projection, the dens or odontoid process, that acts as a pivot point for the atlas (first cervical vertebra) to rotate around.