Term
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Definition
mucous membrane consisting of epithelium,
moistened by glandular secretions &
a lamina propria of areolar tissue |
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Term
| the Inner lining of GI tract |
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Definition
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Term
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Definition
| Layer of dense irregular connective tissue that surrounds the muscularis mucosae. |
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Term
| Submucosal plexus is located |
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Definition
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Term
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Definition
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Term
| Submucosal plexus (plexus of Mesissner) contains: |
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Definition
Sensory neurons
Parasympathetic ganglionic neurons
Sympathetic post- ganglionic fibers |
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Term
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Definition
innervate mucosa + submucosa
(connect by nerves) |
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Term
| Muscularis externa contains |
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Definition
| contains Submucosal plexus & lots of smooth muscle |
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Term
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Definition
| mechanical processing & movement of materials |
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Term
| Muscularis externa Coordinated by |
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Definition
| Enteric nervous system(ENS) |
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Term
| Muscularis externa is stimulated by |
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Definition
by parasympathetic system which stimulates its activity & muscle tone
"rest & digest" |
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Term
| Muscularis externa is inhibited by |
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Definition
Sympathetic nervous system
relaxes these muscles |
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Term
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Definition
| Serous membrane that covers the Muscularis externa |
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Term
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Definition
| oral cavity, pharynx, esophagus & rectum (have collagen fibers) |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| secrete 15oo mL of gastric juice |
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Term
| gastric juice is secreted by |
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Definition
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Term
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Definition
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Term
MALT
mucosal- associated lymphoid tissue |
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Definition
| Lymphoid tissue in intestines |
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Term
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Definition
| Clusters of berry shaped cells in exocrine organs where the secretion is produced |
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Term
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Definition
The endocrine tissue of pancreas
ex. secrete products such as insulin |
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Term
| Pancreatic islets location |
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Definition
| pancreatic acini (pockets where pancreatic ducts end) |
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Term
| Each liver lobe is divided into______ |
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Definition
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Term
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Definition
| Basic functional units of liver |
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Term
| Liver lobules are Separated by |
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Definition
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Term
| in the Liver lobule sinusoid capillaries empty to |
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Definition
| central vein (lined with endothelial cells) |
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Term
| Liver lobule contains ____ cells |
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Definition
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Term
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Definition
| stellate reticuloendothelial cells |
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Term
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Definition
| store Fe, lipids, heavy metals |
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Term
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Definition
hepatic triads
where the lobules interconnect |
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Term
| Portal triad concisists of |
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Definition
Branch of hepatic portal vein
Branch of hepatic arteryproper
Sm branch of bile duct |
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Term
| at each of the 6 cornera of liver lobule they are |
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Definition
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Term
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Definition
| Breaks down proteins,fats,carbs |
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Term
| Chemical digestion is mostly done by the |
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Definition
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Term
| Chemical digestion starts with |
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Definition
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Term
proteins breakdown into
complex carbs
lipids |
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Definition
amino acids
simple sugars
glycerols & fatty acids |
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Term
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Definition
Process in which bile salts break lipid droplets
=increase surface area to allow for enzymatic attack |
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Term
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Definition
| Fluid that liver secretes btwn opposing adj. membranes |
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Term
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Definition
| a tiny branch off the hepatic portal vein that delivers nutrient rich blood to liver for processing & detoxification |
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Term
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Definition
| an arteriole, that delivers oxygen rich blood to hepatocytes |
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Term
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Definition
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Term
| the mucosa layer of the stomach contains ridges due to the presence of______ that house________ |
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Definition
| gastric pits, gastric glands |
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Term
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Definition
| secrete gastric juice (needed for digestion) |
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Term
| the stomach mucosa between the gastric pitt usually contains lots _____cells |
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Definition
| globlet (mucous producing cells) |
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Term
| the 3 sets of folds in the sm intestine is due to |
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Definition
plicae circulares (circle folds)
villi (folds of mucosa)
microvilli (folds of enterocytes plasma membrane) |
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Term
| inestinal crypts are located |
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Definition
| bwtn villi (sm. intestine mucosa layer) |
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Term
| each villi in sm. intestine tissue is lined with |
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Definition
| intestinal cells called enterocytes |
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Term
| enterocytes in sm intestine tissue surround |
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Definition
| a core containing blood vessels & lacteal |
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Term
| the hepatic portal vein (as seen in liver portal triad) has a ____ lumen & is lined with___________ |
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Definition
| large, simple squamous epitheial lining |
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Term
| the hepatic artery as seen in liver portal triad) has a ____ lumen & is lined with___________ |
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Definition
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Term
| the portal triad is completed by the _____ which is lined by ________ |
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Definition
| bile duct, simple cubodial or columnar epithelium |
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Term
| the mucosa layer of the esophagus is made up of |
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Definition
stratified squamous epithelium
& muscularis mucosa |
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Term
| the submucosa layer of esophagus is made up of |
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Definition
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Term
| the muscularis externa of esophagus is made up of |
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Definition
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Term
| the mucosa layer of the stomach is made up of |
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Definition
simple columnar epithelium
goblet cells
gastric glands
muscularis mucosa |
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Term
| the simple columnar epithelium invaginates of stomach into the lamina propia to form |
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Definition
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Term
| the submucoasa layer in stomach tissue has |
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Definition
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Term
| the muscularis externa in the stomach has what layers? |
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Definition
inner oblique
middle circular
outer longitudinal
*has smooth muscle too |
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Term
| in cardiac stomach the gastric glands and pits are |
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Definition
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Term
| in fundus of stomach the gastric glands and pits are |
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Definition
| gastric glands are longer than pits |
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Term
| in plyorus of stomach the gastric glands and pits are |
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Definition
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Term
| the plyorus of stomach has the thickest tissue layer |
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Definition
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Term
| gastric glands begin to form at the ____ & go into ___ |
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Definition
| gastic pits; muscularis mucosae |
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