Glands Of Digestion

Question 1

Gallbladder release bile in response to

Answer 1

CCK and the vagus nerve

Question 2

What is the surface epithelium of the gallbladder

Answer 2

Simple columnar

Question 3

Which major luminal wall layer is significantly absent in gallbladder

Answer 3

Submucosa

Question 4

Does the Muscularis externa of the gallbladder have normal pattern

Answer 4

NO

Question 5

What are the two cell types in the mucosa

Answer 5

Clear cells-cholangiocytes

Brush cells

Question 6

What is the function of clear cells

Answer 6

Concentrate bile by absorbing water, have many microvilli

Question 7

What is the function of brush cells

Answer 7

Produce mucinogen- for lubrication

FEW IN NUMBER

Question 8

Where is the lamina propia mc found in the gallbladder

Answer 8

Neck, often possess small mucous glands

Question 9

What is the function of lamina propia in the gallbladder

Answer 9

Lubricate the narrow neck lumen

Question 10

Is the Muscularis mucosa present in the gallbladder

Answer 10

NO

Question 11

Does the gallbladder have a Submucosa?

Answer 11

ABSENT VERY UNSUAL

This is why gallstones develop

TQ!!!!!

Question 12

What kind of pattern does the Muscularis externa have in the gallbladder

Answer 12

Not a normal pattern, consists of thin smooth muscle layer with DISORGANIZED muscle arrangement

Question 13

Is the gallbladder attach to the liver via adventitia or serousa?

Answer 13

Mostly serosa

Question 14

What kind of bile works best with small intestines

Answer 14

Cystic

Question 15

What major secretory portion of the pancreas is the largest

Answer 15

Exocrine- enzyme producing

Question 16

Which pancreatic cells help buffer chyme?

Answer 16

Centroacinar and cuboid cells in the pancreatic intercalated ducts

Question 17

The endocrine pancreas is

Answer 17

Islets of langerhans producing hormones

Question 18

Exocrine pancreas does

Answer 18

Serous acini producing digestive enzymes

Question 19

LArgest portion of the pancreas is which portion

Answer 19

Exocrine

Question 20

Serous acini of the pancreas secretion is controlled by?

Answer 20

CCK, and acetylcholine from parasympathetic nerves

Question 21

Pancreatic ducts secrete H2O and HCO3 and is controlled by

Answer 21

SECRETIN and acetylcholine from parasympathetic nerves

Bicarbonate to neutralize chyme in duodenum

Question 22

What are centroacinar cells

Answer 22

In pancreas located next to acinar cells

Question 23

What are centroacinar cells

Answer 23

Cells along with the cuboid cells in intercalated pancreatic ducts

Question 24

What does centroacinar cells produce

Answer 24

Alkaline fluid with large quantities of bicarbonate ions released into duodenum

Question 25

What wraps around of the pancreatic ducts

Answer 25

Collagen rich CT tissue Function- provide extra protection from the possible leaking digestive enzymes

Question 26

What is the largest gland in the body with endocrine and exocrine functions

Answer 26

LIVER

Question 27

Why are the hexagonal shaped lobules in liver hard to distinguish

Answer 27

Cue to lack of CT tissue between lobules

Question 28

What are hepatocytes

Answer 28

Microvilliated cuboidal cells processing lateral bile canaliculi between adjacent hepatocytes

Question 29

HOw does bile move from the hepatocytes toward the bile duct bronchi in the

Answer 29

Portal triad

Question 30

What do bile canaliculi do

Answer 30

Collect bile

Question 31

What is the function of kupffer cells (stellate macrophages) in the liver

Answer 31

Resident macrophages, develop from monocytes Phagocytosis of debris and red blood cells, act as APC

Question 32

What are Ito cells (hepatic stellate cells) and functions

Answer 32

Store lipids fro immediate use, store vitamin A, produce collagen I,III,IV and growth factors

Question 33

Ito cells (hepatic stellate cells) dont produce

Answer 33

College type II

Question 34

What are Pit cells in the liver

Answer 34

Natural killer cells

Question 35

What are hepatic progenitor cells

Answer 35

Likely present and responsible for REGENERATIVE CAPABILITIES

Question 36

What does the portal triads include

Answer 36

1. hepatic artery-smallest 2. Portal vein-largest 3. bile duct-dark stain They also have cholangiocytes

Question 37

What are the dilated, fenestrated thin walled vessels found between rows of hepatocytes

Answer 37

Hepatic sinusoids 75% venous 25% arterial blood

Question 38

What is the central vein in the liver

Answer 38

Fenestrated thin walled vessel that collects blood from the hepatic sinusoids

Question 39

Blood flows from the __________ towards the __________

Answer 39

Portal triad, central vein

Question 40

What is the space of Disse

Answer 40

Is the perisinusoidal space Space between the hepatocytes and the fenestrated hepatic sinusoids

Question 41

Where does blood directly contact the microvilliated surfaces of hepatocytes

Answer 41

Space of Disse Flows slow enough so the cells can interact with blood, which is why the liver can take over the function of the spleen for 24-48 hours

Question 42

What is Glissons capsule

Answer 42

Is dense irregular CT covered with serosa of the liver