NURS113 Lecture Notes - Lecture 5: Gastric Mucosa, Pylorus, Gastric Acid
23 Nov 2017
School
Department
Course
Professor
Document Summary
Q: the wall of the digestive tract secretes 3 things. Q: the majority of the digestive system only has 2 muscle layers, except for the stomach which has 3. A: circular, oblique, longitudinal; oblique is the extra. A: stomach because of high acidity in the stomach. Q: which type of cells is found in the stomach? (6) A: chief, parietal, mucous cells, gastrin cells, ecl cells, d cells. A: secrete alkaline mucous that protects the stomach wall and neutralizes acid in the immediate area of the lining. Q: (cid:373)u(cid:272)us s se(cid:272)reted (cid:271)y (cid:449)hi(cid:272)h type of (cid:272)ells? (cid:894)(cid:374)ot (cid:373)u(cid:272)ous (cid:271)ut (cid:895) Q: gastrin secretion is controlled by what? (and which cranial nerve?) A: histamine for vasodilation to promote blood flow to mucosa. A: crypts of lieberk hn, goblet cells, brunner glands and hormones. Intestinal glands that secrete about 2 l of fluid/day into lumen of intestine. Contains villi for absoprtion, crypts found between the villi.
