: Explores a wide range of movements, including supination, pronation, extension, and flexion .
When the thumb extends and abducts (hitchhiker pose), a triangular depression appears on the radial side of the wrist called the . The PDF not only labels the tendons (Abductor pollicis longus, Extensor pollicis brevis) but shows a 3D render of how the radial artery pulses beneath this depression. For medical illustrators, this is vital. arm and hand in motion by anatomy for sculptors pdf verified