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GI Midterm > Digestive Glands > Flashcards

Flashcards in Digestive Glands Deck (19):
1

functions of saliva

lubrication
protective
digestive

2

Parotid

serous acini
amylase, peroxidase, lysozyme
antimicrobial proteins

3

Submandibular

mixed serous and mucus
serous demilunes
amylase
secrete mucins which help in lubrication of food

4

sublingual

mixed serous and mucus
mucus acini predominate
mucous secretion

5

mumps rabies and tumors

parotid glad is primary target of rabies and mumps

6

acinus

functional histologic unit of exocrine pancreas

7

centroacinar cells

found in lumen of acinus
secrete bicarbonate and mucin

8

hepatic lobule

structural and functional unit of the liver
consists of anastomosing plates of hepatocytes
central venule is in the core and collects sinusoidal blood containing a mixture of blood

9

classic hepatic lobule

hexagonal lobule
surrounding a central vein
portal triads at angles

10

portal lobule

triangular arrangement
center of the triangle is bile duct collecting from 3 hepatic lobules
angle are the central veins of three hepatic lobules

11

liver acinus

based on the oxygen gradient of venous sinusoids of adjacent lobules
3 zones based on blood supply to hepatocytes

12

microscopic structure of lobule

sinusoids are b/w rows of hepatocytes and they supply blood to the liver cells
bile flows opposite of blood

13

space of disse

endothelium is fenestrated
allows blood plasma to reach hepatocytes

14

ito cells (hepatic stellate cells)

located at intervals w/in the space of disse
function as storage site for fate and vitamin A

15

Kupffer cells

macrophages in sinusoids
incolved in the recycling of old RBC

16

hepatocytes

functional endocrine and exocrine cell of the liver

17

Hepatocyte SER

synthesis of cholesterol and bile salts
glucuronide conjugation of bilirubin, steroids, and drugs
breakdown of glycogen into glucose
the detoxification of lipid-soluble drugs

18

bile

mixture of organic and inorganic substance produced by hepatocyte
excretion of cholesterol, phospholipids, bile salts, conjugated bilirubin, and electrolytes
fat absorption
transport IgA

19

gallbaldder

main functions - storage, concentration, and release of bile