Question 11 pts The function of the stomach is to generate an acidic environment

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Question 11 pts

The function of the stomach is to generate an acidic environment, churn food, and act as a storage compartment.

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Question 21 pts

Match the tunic of the stomach on the left with the information on the right.

Mucosal layer

      [ Choose ]            contains the gastric pits            contains blood vessels            composed of mesothelial cells            contains oblique, circular and longitudinal muscle fiber      

Submucosal layer

      [ Choose ]            contains the gastric pits            contains blood vessels            composed of mesothelial cells            contains oblique, circular and longitudinal muscle fiber      

Smooth muscle layer

      [ Choose ]            contains the gastric pits            contains blood vessels            composed of mesothelial cells            contains oblique, circular and longitudinal muscle fiber      

Serosa

      [ Choose ]            contains the gastric pits            contains blood vessels            composed of mesothelial cells            contains oblique, circular and longitudinal muscle fiber      

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Question 31 pts

Match the cell type on the left with what it secretes on the right.

Chief cell

      [ Choose ]            Sodium            Bicarbonate            Potassium            Pepsinogen            ACh            Gastrin            Histamine            Hydrogen ions      

Enterochromaffin like cell

      [ Choose ]            Sodium            Bicarbonate            Potassium            Pepsinogen            ACh            Gastrin            Histamine            Hydrogen ions      

Parietal cell

      [ Choose ]            Sodium            Bicarbonate            Potassium            Pepsinogen            ACh            Gastrin            Histamine            Hydrogen ions      

G-cell

      [ Choose ]            Sodium            Bicarbonate            Potassium            Pepsinogen            ACh            Gastrin            Histamine            Hydrogen ions      

postganglionic parasympathetic neuron

      [ Choose ]            Sodium            Bicarbonate            Potassium            Pepsinogen            ACh            Gastrin            Histamine            Hydrogen ions      

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Question 41 pts

The H+/K+ ATPAse activity is influenced by:

Select all that apply.

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Question 51 pts

*** This is an example of a test question ***
The peptide hormone gastrin is released from the ____________ membranes of G cells and binds to the __________ membranes of ___________ cells.

Explanation / Answer

Question 11 pts

True:The function of the stomach is to provide an acidic environment for the enzymes,churning food and acts as storage organ

Question 21 pts

Mucosal layer: Contains the gastric pits-these are the openings that extend towards the inner stomach wall

Submucosal layer: contains blood vessels-it is a layer of dense connective tissue

Smooth muscle layer:contains oblique ,circular and longitudinal muscles which are oriented in different directions

Serosa-composed of mesothelial cells-which is a thin layer of serous membrane,it is the outermost layer of stomach wall

Question 31 pts

CELL TYPE. - SECRETION

Chief cell. - Pepsinogen

Enterochromaffin cell - Histamine

Parietal cells. - Hydrogen ions

G-cells. - Gastrin

Post ganglionuc parasympathetic neurons - acetylcholine is the primary neuro transmitter

Question 41 pts

H+/K+ ATPase enzyme responsible for the acidification of the stomach

Gastrin is influenced by the hydrogen potassium ATPase activity

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