Question

Difference between ball and socket joint and pivot joint

Answer 1

A  Pivot joint (trochoid joint, rotary joint) is a joint that moves by rotating. For example, the joint that allows humans to rotatetheir heads on their necks is a pivot joint. They allow rotation.

 
Ball and socket joint; 2: Condyloid joint(Ellipsoid); 3:Saddle joint; 4 Hinge joint; 5: Pivot joint;