ileocecal sphincter

today in physiology we talked about corn as a "marker" to discover just how long it takes for things to traverse your digestive tract. and i learned that no matter how old i get, i'm still not mature enough to not giggle when the teacher starts talking about rectums and sphincters. especially sphincters, in fact. the word is inherently hilarious. asphinctersayswhat? SPHINCTER! did you know that we actually have two anal sphincters? one is smooth muscle and is controlled by the autonomic nervous system. the other is skeletal muscle, and is, thank god, controlled voluntarily.

let me be (surely not) the first to say it: this class is a load of crap.