ANT335Y1 Lecture Notes - Lecture 3: Radial Tuberosity, Olecranon, Weight-Bearing
Document Summary
Cattarine shoulder is designed for full mobility. The ulna is the medial bone in ur hand. Primates and non human primates, specically cattarines (apes and humans) have unqiue ability to extend at elbow and apes have ability to hyper extend in elbow. Monkeys are diff when it comes to ulna. Gorilla emphasis on ulna is length (tend to be longer cause forelimb dominant) humans retained the length from our anceators who were more limb dominant. Top of ulna (green arrow) is a process of bone called olecranon process, the bone is reduced which allows extension. Baboon most promixal tip is taller (which is why they cant move as much there) Gorilla bone is long and curved, and curvature is in long bones when they are highly loaded(weight or mucle acting on those bones) theres is like this beaue their forearms are.
