Fat Metabolism Flashcards
Na
These cells are stimulated as fat travels down the duodenum
Enteroendocrine
Enteroendocrine cells release which hormones?
Cholecystokinin (CCK) & Secretin
What does cholecystokinin do?
Tells the gallbladder to contract squeezing bile into the duodenum
What specifically emulsifies fat?
Bile salts
What organ releases Lipase?
Pancreas
What 2 hormones stimulate the release of pancreatic juice?
CCK cholecystokinin & secretin
Concerning digestion what does the pancreatic juice contain?
Amalyse, Lipase,Protease & bicarbonate ions
Why is releasing bicarbonate from the pancreatic juice important to digestion of fat?
It raises the PH so the lipase can work.
What do lipase and colipase do to triglycerides?
They cut it apart into monoglycerides to permit digestion by the intestinal wall
After lipase does its job what are the fatty acids, cholesterol, and monoglycerides called?
Missels
What is the cell of the intestinal lining callled?
Enterocyte
In the enterocyte which organelle is responsible for rebuilding the lipid?
Smooth endoplasmic reticlum
What does the endoplasmic reticlum build from missels?
Triglycerides and cholesterol
Triglycerides and cholesterol go through the golgi apparatus to form what?
Chylomicron
What are large triglycerides-rich lipoproteins produced in enterocytes?
Chylomicrons
When the chylomicron is shipped out of the golgi apparatus where does it enter?
Lymph
Carbs and proteins that have been digested enter where?
Blood stream
Digested Carbs and Proteins in the blood stream go where?
Portal system
Chylomicrons in the lymph directly after digestion go where?
Thorasic duct
Lymph traveling up thr thorasic duct travel where?
Subclavian veins
Which protien surronds the chylomicron?
APO B 48
What breaks down Chylomicrons
Lipolipase
After the breakdown of chylomicrons by lipolipase into fatty acids and monoglycerides, where do they go next?
Peripheral Tissues
If fatty acids and monoglycerides move to the skeletal tissue, what is their function?
Energy Production
If fatty acids & monoglycerides move to adipose tissue what is their function?
Storage
The chylomicron remenants are high in:
Cholesterol
Chylomicrons remnants are low in?
Triglycerides
Chylomicron remnants travel from the blood stream where for processing?
Liver
During times of fasting the _____ produces lipoprotein
Liver
