4b73950a_all_the_bones__notes
[feature] trochlear notch [bone] ulna [description] the crescent shaped notch on the anterior surface of the proximal end of the ulna [notes] 
it is located between the olecranon and the coronoid process; it articulates with the trochlea of the humerus; a ridge within the trochlear notch fits into the groove in the trochlea of the ulna which limits side-to-side movement and guarantees a hinge action
all the bones
notes