 Okay, so we're looking at the ulna here, so you can always tell the ulna because the ulna has a u okay? The top part here you have the olacranin process, so this this first projection Well the other projection is the coronoid process You have the trochlear notch in between Here on the side you can kind of see this indention part right here It's the radial notch where the radius head would sit here on the ulna The other ends actually in this case the bottom is the head of the ulna And then it has those little projections sticking off the side down here It's called the styloid process