GIT Physio Pt 3/4 (GIT Secretions)

Question 1

Name the cells secreting non-hormonal Salivary secretions. + What are their secretions? + Function of secretions?

Question 2

Name the cells secreting non-hormonal Gastric secretions. + What are their secretions? + Function of secretions?

Question 3

Name the cells secreting hormonal Gastric secretions. + What are their secretions? + Function of secretion?

PEEG

Answer 3

hint: P/D1 cells in FUNDUS
+
enteroendocrine cells + ECL cells in BODY
+
G cells in ANTRUM-PYLORUS

Question 3

What are the cells in gastric (oxyntic) vs pyloric glands?

Question 3

Name the cells secreting non-hormonal Small Intestine secretions. + What are their secretions? + Function of secretion?

Question 3

Name the cells secreting hormonal Large Intestine secretions. + What are their secretions? + Function of secretion?

GE

Question 3

Name the cells secreting non-hormonal Large Intestine secretions. + What are their secretions? + Function of secretion?

MucION

Question 4

Name the cells secreting hormonal Small intestine secretions. + What are their secretions? + Function of secretion?

Hint (for now):
PCMG Y

Question 4

Name the cells secreting non-hormonal Pancreatic secretions. + What are their secretions? + Function of secretion?

hint: endocrine + exocrine pancreas (MEE GIS - in terms of secretions –> name the cells that secrete them yourself!)

Question 4

Name the cells secreting hormonal Pancreatic secretions.
+ What are their secretions?
+ Function of secretion?

D

Question 5

Name the constituents of bile. (BCBEH)

Where is bile synthesised + stored + released at?

Draw the biliary tree!

Question 6

Explain the regulation of gastric secretions from:
(i) Gastric/oxyntic glands (cells: PCME)
(ii) Pyloric glands (cells: GM)

Question 7

Explain the regulation of small intestine’s secretions?

Question 8

Explain the regulation of the EXOCRINE pancreas secretions?
from:
(i) acinar cells
(ii) ductal cells

Question 9

What are the 3 satiety hormones + Secreted by (what cells in what organ)? + Regulated (induced/ inhibited by)?

Question 10

What are the 2 Hunger hormones + Secreted by (what cells in what organ)? + Regulated (induced/ inhibited by)?

Question 11

just for good measure: What are the 3 functions of CCK?

Hint:
- pancreas
- gall bladder
- stomach

Question 12

Explain the protective mechanisms of the stomach.

Question 13

Explain the protective mechanisms of the small intestine.

Question 14

Explain the protective mechanisms of the pancreas.