5 Written Questions

1. from goblet cells and mucous glands
   
   protective to stomach wall
2. - cephalic
   -gastric
   -intestinal
3. outer covering (have to be gentle with during operation)
4. movement through the tube (alimnetary canal)
5. Rhythmic contractions of smooth muscle in the walls of various tubular organs by which the contents are forced onward.

5 Matching Questions

1. intrinsic factor
2. segmentation
3. bile
4. intestinal gastrin
5. gastroenteric reflex

1. a -from parietal cells
   
   -required for vitamin B12 absorption
2. b control- cells in small bowel in response to chyme
   
   effect- increase in gastric juice
3. c mixing of food
4. d -is released in response to CCK (which is released in response to fat entering the duodenum)
5. e from stomach to small bowel
   
   action-increases small bowel motility

5 Multiple Choice Questions

1. control- gastric cells
   
   effect- inhibits acid production by parietal cells
   1. somatostatin
   2. mucosa
   3. gastrin
   4. segmentation
2. -Gastrine hormone released by enteroendocrine cells
   -causes increased release of gastric juice
   1. phases of gastric secretion
   2. nervous system gastric control
   3. hormonal gastric control
   4. intestinal gastrin
3. -PNS Vagus Nerve
   -Increases releases of gastric juice
   -Increases release of gastrin (hormone)
   1. nervous system gastric control
   2. hormonal gastric control
   3. phases of gastric secretion
   4. enterogastric reflex
4. control- gastric cells in response to food
   
   effect- increase in gastric juice
   1. pepsin
   2. gastrin
   3. gastrocolic
   4. digestion
5. -Stomach is stretched by food
   -Stretch receptors carry info to brain, stimulate PNS (vagus nerve)
   - Chemoreceptors sense drop in acidity as
   food dilutes acid in stomach Increases
   GASTRIN secretion
   
   • PNS increases gastric activity (see above)
   • Gastrin increases HCL production.
   1. gastrocolic
   2. cephalic phase
   3. gastrin
   4. gastric phase

5 True/False Questions

1. pepsin → - from chief cells
   -inactive form of pepsin

   True        False

2. gastric control mechanisms → nervous and hormonal

   True        False

3. bile → -acts like soap
   -emulsifies fats
   - is recycled!

   True        False

4. mucosa → responsible for secretion and absorption

   True        False

5. autonomic activity of digestive system → PNS increases activity
   SNS decreases activity
   VAGUS NERVE

   True        False