When shoulder and hip move limbs posteriorly Head upright, arm down, hand down. Extend ankle and elevate heel. Carpometacarpal and metacarpophalangeal joints. Flat, slightly curved faces Surfaces slide across each other, with slight movements allowed Ligaments stop or restrict rotation. Clavicles, carpals, tarsals, adjacent vertebrae.
Pivot joints allow only rotation.
Ellipsoidal joints aka condylar joints. Saddle joints aka sellaris joints. Opposing faces nest together Angular movement allowed, even circumduction.