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Flashcards in Glands of digestion Deck (42)
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1

What organ lies inferior to liver - bulk of which is a body and contains a cystic duct that connects to a narrow neck

gallbladder

2

What is the function of gallbladder

store and concentrate bile (can hold ~70 mL)

3

What is the difference between hepatic bile and cystic bile

Hepatic = primary bile (from liver)
Cystic = concentrated bile (in gallbladder)

4

What hormone controls secretion of bile

CCK (and vagus n.)

5

What is the surface epithelium of mucosa in gallbladder

simple columnar

6

Clear cells (cholangiocytes) in the mucosa of the gallbladder have many what? What is the their function?

Many microvilli

Absorb water

7

What do brush cells in the gallbladder do? Are there many of them?

Produce mucinogen

few in number

8

True or false; the lamina propria of the gallbladder is loose and very vascular

true

9

True or false; a muscularis mucosa is absent in the gallbladder

true

10

What is very unique about the submucosa of the gallbladder

It is ABSENT!

11

True or false; the muscularis externa of gallbladder has a normal pattern

false - not normal patter - thin smooth muscle layer with disorganized muscle arrangement

12

Is the gallbladder mostly serosa or adventitia

serosa but some adventitia where it attaches to liver

13

True or false; the pancreas has an exocrine and endocrine function

true

14

What is the endocrine process of the pancreas

islets of langerhans producing hormones

15

What is the exocrine process of the pancreas

serous acini producing digestive enzymes

16

True or false; the largest portion of the pancreas is exocrine portion

true

17

The secretion of the exocrine portion of the pancreas (serous acini) is controlled by what?

CCK an ACH from parasymp. nerves

18

What controls secretion of water and bicarb from pancreatic ducts

secretin and ACH from parasymp nerves

19

The centroacinar cells (which are located next to acinar cells) along with cuboid cells in the intercalated pancreatic ducts release what into where?

Release alkaline fluid (bicarb) into duodenum to buffer stomach chyme

20

What is the function of the collagen rich ct. wrapping pancreatic duct?

Provide extra protection from digestive enzymes leaking

21

What is the largest gland in the body with exocrine and endocrine function?

Liver

22

True or false; on top of metabolism of lipids, carbs and proteins - production of blood protein - detoxifying - and hepatic bile production - the liver also stores vitamin A and B12

true

23

What is the shape of classic liver lobules?

Hexagonal

24

Microvilliated cuboidal cells (in columns) possessing lateral bile canaliculi best describes what cell?

Hepatocytes

25

What is the most common cell type of liver

hepatocyte

26

How does bile move from hepatocytes

towards bile duct branch through the portal triad

27

What is the arrangement of hepatocytes?

In rows between hepatic sinusoids like spokes of a wheel

28

What are Kupffer cells?

Resident macrophages (develop from monocytes)

29

What is the function of Kupffer cells?

Phagocytosis of debris (antigen presentation)

30

True or false; Kupffer cells are stellate macrophages in liver

true