On this page is a small short movie of the human upper limb external appearance changes covering the Carnegie stages from 13 to 23. Note the images are not to scale. Notice as the upper limb grows it moves from a lateral appendage to rotate ventrally and bends at the elbow, ending up on the anterior surface of the embryo. (More? see notes on Limb Development).
Quicktime: Arm movie in new window (179 Kb)