BIO310H5 Lecture Notes - Lecture 20: Muscular Layer, Resting Potential, Arteriole
Document Summary
In the large intestine, major bacterial digestion will occur. It is also lined by epithelium, it isn"t there to digest, its just from absorption. Slide (back a slide with villi: mucosa was covered by muscular layer. Slide 19: when you squeeze the tube, the bolus of food is getting pushed away, circular muscles are contracting, circular contraction and longitudinal relaxation and then immediately the opposite. If there is a lot of food, there will be a stretch which will induce the movement and activation of. Some of the toxins will induce motility (contraction and relaxation: usually ans because you need rest and digest. Slide 21: not for the exam, but you have to understand the motility of the gastrointestinal tract. For the stomach, it will have a mass contraction so there is no food left behind will immediately start to neutralize the highly acidic bolus of food.
