GI 3 - Liver, Pancreas, Gall Bladder

Question 1

Pancreas - clusters of endocrine cells without ducts
highly vascularized with many capillaries
chromophilic secretory cells

Answer 1

endocrine islets

Question 2

secrete glucagon; increase blood glucose

Answer 2

a cells

Question 3

secrete insulin, decrease blood glucose

Answer 3

beta cells

Question 4

secreting apically to ducts

larger interlobular and main ducts

Answer 4

exocrine acini

Question 5

stain with eosin apically –> chromophilic

secrete digestive enzyme in inactive form

Answer 5

acinar cells = zymogenic cells

Question 6

secreted by DNES cells in SI and by AC released by post synapse parasympathetic nerves

Answer 6

enterokinase

Question 7

chromophobic; many TJs between cells

secrete bicarb, Cl-, water to flush zygomes to Oddi

Answer 7

centroacinar + ductal cells

Question 8

bile production
plamsa protein production
alcohol dehydrase
glycogen production

Answer 8

Liver

Question 9

increase in nutrients, drains GI tract, enters liver

Answer 9

hepatic portal vein

Question 10

high in O2

Answer 10

hepatic artery

Question 11

drain liver of exocrine product

Answer 11

Bile Duct

Question 12

highly synthetic(RER);highly metabolized (mitochondria) with very high storage capacity

Answer 12

hepatocytes

Question 13

domains of hepatocytes - nutrient uptake + endocrine release to venous sinusoids

Answer 13

basal

Question 14

domains of hepatocytes - exocrine release into bile duct

Answer 14

apical

Question 15

venous sinusoids are patrolled by…

Answer 15

Kauffer cells

Question 16

plasma proteins + lipoproteins, exocrine products, water soluble

Answer 16

endocrine products