Shared Flashcard Set

Details

Digestive - Esophagus & Stomach
Esophagus & Stomach
28
Veterinary Medicine
Not Applicable
11/29/2016

Additional Veterinary Medicine Flashcards

 


 

Cards

Term
What are the main 'layers' of the GI tract from inside to outside?
Definition
Tunica Mucosa
Tunica Submucosa
Tunica Muscularis
Tunica Adventitia
Term
How does the tunica mucosa vary in structure?
Definition
Oral cavity, esophagus & canal have a protective mucosa (SSE)

Secretory mucosa throughout the digestive tube contains various glands

Absorptive mucosa has villi & microvilli

Absorptive/Protective mucosa of the LI is designed for both water absorption and mucous secretion
Term
What is the submucosal (meissner's) plexus, where is it found and what does it do?
Definition
junction of nerves in the submucosa, controls the muscularis mucosa & submucosal glands
Term
What is the myenteric plexus (auerbach's), where is it found and what does it do?
Definition
junction of nerves between the layers of the tunica muscularis, controls peristalsis
Term
How can you tell if you are looking at esophageal tissue?
Definition
will see submucosal glands AND stratified squamous epithelium, as well as skeletal muscle
Term
What is the importance of having mucous glands at the junction between the stomach & esophagus?
Definition
provides protection incase of acid reflux
Term
In the simple stomach, mixing and partial digestion of food results in the production of...
Definition
chyme
Term
What are the regions of the stomach?
Definition
Fundus
Cardia
Plyorus
Term
What type of epithelium does the stomach have?
Definition
simple columnar
Term
Characteristics of cardiac glands
Definition
simple tubular, cells have a flattened basal nucleus
empty into gastric pits
Term
What do cardiac glands secrete?
Definition
mucus
Term
What do fundic (gastric) glands secrete?
Definition
mucus & acid-peptic gastric juices
Term
Characteristics of fundic/gastric glands
Definition
short neck (gastric pit) with a long gland body

simple branched tubular
Term
What do plyoric glands secrete?
Definition
gastrin & mucus
Term
What do parietal cells secrete?
Definition
HCl & intrinsic factor
Term
What do chief cells secrete?
Definition
pepsinogen
Term
Long gastric pit with smaller gland proper =
Definition
pyloric
Term
Short gastric pit with long gland proper =
Definition
fundic
Term
Cells of fundic glands & their secretions
Definition
Neck cells (mucous)
Parietal cells (HCl)
Chief cells (pepsinogen)
Enteroendocrine cells (gastrin)
Term
What are the 2 types of enteroendocrine cells?
Definition
Closed type don't reach lumen, will release product into CT to reach the vascualture

Open cells reach the lumen and can sense gut contents, will release their contents in response
Term
What do ondoblasts secrete?
Definition
pre dentin
Term
What do ameloblasts secrete?
Definition
pre enamel
Term
What layer of stomach muscle is thickened to make the cardiac sphincter?
Definition
circular smooth muscle of tunica muscularis
Term
[image]
Definition
cardiac
Term
[image]
Definition
enteroendocrine
Term
[image]
Definition
esophagus
tunica mucosa, submucosa and muscularis
Term
[image]
Definition
fundic
Term
[image]
Definition
pyloric
Supporting users have an ad free experience!