Flashcards in small intestine Deck (20):
______ is the area where most digestion and absorption of food occurs
what are the 3 major regions of the small intestine
What contains Duodenal glands *brunner's glands* which secrete alkaline mucus neutralize stomach acid
*these guys contain the Brunner/Duodenal glands responsible for neutralizing stomach acids
This is the intestinal lining folds which greatly increase the surface area for digestion and absorption...
Difference between Villi and Microvilli (Brush Border)?
Villi are the finger-like projections on the mucosa of small intestine... and Microvilli (brush border) are the projections on the Villi... further increasing SA
What are the two brush border enzymes?
What are their respective roles?
Enteropepidase: Digestion of proteins
Digestion of carbohydrates
This organ is the second largest in the body? (skin is largest)
_______ are the primary functional cells of the liver...
these guys are also arranged into units called
Hepatocytes... are arranged into functional units called liver lobules
What is the primary glandular function of liver?
The secretion of bile
What cells are responsible for secretion of bile? (what do they travel through)
Hepatocytes secrete Bile through the *bile canaliculi*
Talk about the flow of bile... beginning with the production from Hepatocytes
Bile Canaliculi --> Bile Duct --> Right or Left Hepatic Duct --> Cystic Duct/ Common Bile Duct --> Gall Bladder/ Duodenum respoectively...
**so cystic duct leads to gall bladder
**common bile duct leads to duodenum
What are Kupffer cells? Where are they located?
They are macrophages located in the liver
What most be present in the Duodenum in order for Bile to be secreted and enter the Duodenum?
Metabolism consist of two processes...
Anabolism and Catabolism (define)
Anabolism --> is the building up of bigger molecules from smaller ones
Catabolism --> breaking down of bigger molecules into smaller ones
Carbohydrate is used mainly to produced what?
____is the breakdown of glucose in the cytoplasm with final products... 2 pyruvic acid, net 2 atp and 2 reduced coenzyme
Pyruvic acid enters into the Krebs cycle when
Oxygen is present
Pyruvic acid turns into _______ when there is no oxygen **think about sprinting**
Glycogenesis is what?
Formation of Glycogen... basically seems that when sugar is not needed... it is for storage
*hint look at word carefully*
Break down of glycogen into glucose... when there is shortage of glucose.