Episode 137: The Digestive System
The Science of Everything Podcast
00:00
The Different Layers of Muscle in the GI Tract
The GI tract has to be very flexible because it can go from essentially being empty to being filled with large volumes of food and the food moves along it sequentially. There's a need for a coating of mucus around the outside to prevent rubbing against other tissues in the body. Below that you've got the muscula layer with the circular and longitudinal muscles that help the food move through the digestive system or the GI tract. And then atomosis, the cirosa, which kind of provides connection to the rest of the body and mucus to prevent friction.
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