The anatomy of throat cancer involves the pharynx and larynx. The pharynx is the tube that starts from the back of your tongue and goes down your throat – I’ve
read that it’s about five inches long. And the larynx, which is the voice box, sits just below that and above the trachea. Throat cancer has also been known to involve the piece of cartilage (epiglottis) that covers your windpipe.
It turns out about half of throat cancer cases involve tumors in the pharynx and half in the larynx. It might help to picture the anatomy of throat cancer to check out this NIH diagram of that part of the body, from the mouth to the vocal fold.