[RECALLS] - 3rd PHYSIOLOGY EVALS CHAPTERS 41,42 (39 ITEMS) By: Dr. Miyake and Dr. Nobleza Flashcards
Amylase is found in the ff EXCEPT:
stomach
- mouth-salivary amylase
- pancreas:pancreatic amylase
- duodenum: agihanan daw ug enzyme
Somatostatin
D cell in antrum
GIP
K cells in duodenum
D cells in the corpus of stomach are triggered by:
neural and hormonal mechanisms
ANTRAL D CELLS: low intraluminal PH
Basal luminal ph:
4-6
Initiate protein digestion by hydrolyzing specific peptide linkages:
Chief cells
Inhibit both gastrin release and parietal cell acid secretion:
Somatostatin
Emptying of solids is regulated by:
antral smooth muscles
liquids: proximal part
The key step in gastric acid secretion:
Extrusion of H ion in exchange for K ion.
The following are the function of secretin except:
Inhibition of Gastrin release in the copus
1.inhibition of antral gastrin release 2. Stimulation of somatostatin release 3.direct down-regulation of parietal; cell H ion secretory process
What phase accounts for the largest gastrin release:
gastric phase (50%-60% total gastric acid secretion)
The chief cells and mucous cells secrete pepsinogens:
TRUE
Regulates the movement of contents of the common bile duct into the duodenum:
Sphincter of Oddi
The following are true, except:
The ENS cannot operate without the CNS.
(ENS is a complete reflex circuit and can operate totally within GI tract without participation of either spinal cord or cephalic brain)
The following are true regarding Galt:
All of the above
- permit immunologic tolerance
- consists of both organized aggregates of lymphoid tissue
- diffuse populations of immune cells
Absorptagogues:
Glucocorticoids
Enterochromaffin-like Cells release:
Histamine
When you feel anger and fear why is there slow digestion?
Sympathetic fibers also supply the postganglionic part of digestion
During Chronic Gastritis when Parietal cells are damaged what function is impaired:
All of the above
Gastric, blood, digestion function: Parietal cells produce IF and HCl
What is the bulk of secretion during basal state:
Sodium rich
Function of colon:
Fecal formation
Mixing in the small intestine:
Segmental contractions
DEGLUTITION
SWALLOWING
MASTICATION
CHEWING;
PROPULSION
WAVE LIKE MOVEMENT
MASS PERISTALSIS
colon
If the nerves are damaged what layer is damaged:
submucosa
Direct and indirectly stimulates gastric acid secretion except:
Histamine
Parasympathetic effect on GIT except :
NO EXCEPTIONS
(Choices are Increased pepsinogen secretion,
Increased Acid Secretion, Increased mucus secretion)
Peristalsis
Auerbach plexus (Myenteric)
Lower esophageal sphincter is a _______ muscle that prevents reflux of gastric contents to _______.
Smooth
Esophagus
Sympathetic fibers act on the INTERNAL SPHINCTER then the muscle of the external sphincter is acted
upon by….. :
Inhibit defecation
Prevent reflux of food from stomach going to esophagus:
Upper Esophageal Sphincter
True or False: Distention of esophagus is primary peristalsis.
False (Secondary dapat)