Question

rotating the head to left or right is an example of a ______ joint. ball - and - socket gliding hinge pivot saddle

Explanation:

Pivot joints allow for rotational movement around a single axis. Rotating the head from side - to - side is a rotational movement enabled by the pivot joint between the atlas and axis vertebrae. Ball - and - socket joints allow multi - directional movement like in the hip and shoulder. Gliding joints allow bones to glide over one another. Hinge joints allow movement like a door hinge, mainly flexion and extension. Saddle joints have a concave and convex surface interaction and allow a wide range of movement but not just rotation.

Answer:

D. pivot