There are 16-20 cartilagines tracheales. Cartilagines occupy 2/3 to 3/4 of the circumference of the trachea. (not 1/2) Anyway this is great thread. Good luck!
I'm confused as hell by the rectus abdominis. In the paint over above they kind of go down and make the little S curve, which I've heard is correct. It looked strange in the front so I got this image of a cadaver. How do the 2 relate? Is the white tissue hiding parts? Thanks! Anyways, I have pressed on an created this.…