Articulations of the Digits: Hand – Interphalangeal Joints

(Articulationes Digitorum Manus; Interphalangeal Joints) The interphalangeal articulations are hinge-joints; each has a volar and two collateral ligaments. The arrangement of these ligaments is similar to those in the metacarpophalangeal articulations. The Extensor...

The Shoulder Complex

One of the factor that contributes to the variety of movement the hand can perform “around” the body is the huge mobility of the shoulder. What we generically identify as shoulder movements are separate in 2 different “sectors” and involve 4 joints (3 anatomical...

Excursion

Excursion is the side to side movement of the mandible. Lateral excursion moves the mandible away from the midline, toward either the right or left side.Medial excursion returns the mandible to its resting position at the midline.