Cell types and locations Flashcards Preview

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Flashcards in Cell types and locations Deck (14)
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1
Q

Chief Cells

A

Live 60- 90 days
Produce: Pepsinogen & gastric lipase
Found: Gastric region

2
Q

Goblet Cells

A

Found: Fewest in duodenum Most found in ileum

3
Q

Paneth Cells

A

Live ~20 days
Found: Crypts (intestinal glands)
Function: Produce Lysozyme

4
Q

Surface Mucus cells

A

Live- 3-5 days
Produce- Thick, visible mucus that traps bicarb
secrete- Bicarbonate ions (buffering)
Found in isthmus of the gastric region - Thick visible mucus

5
Q

Neck Mucus

A

Live- 6 days
Produce a soluble, less alkaline mucus (slightly acidic)
Function- To lubricate gastric contents

6
Q

Parietal (oxyntic) cells

A

Live- 150 to 200
secretes - HCl .8 pH buffered immediately to 1-2 pH.
Function- necessary for vitamin B12 absorption

7
Q

low # of Parietal cells

A

Can lead to low amounts of Intrinsic factor ( necessary for RBC maturation)

8
Q

Hepatocytes

A

Microvilliated cuboidal cells possessing lateral bile canaliculi between adjacent hapatocytes
Produce- Bile

9
Q

Kupffer cells

A

Also know as Stellate macrophages- resident macrophages; develop from monocytes
Fuction: phagocytosis of debris & aged RBC’s ; act as an APC

10
Q

Ito Cells

A

Hepatic Stellate Cells-
Functions: store lipids for immediate use; store Vitamin A;
Produces- collagen I,III,IV, and growth factors

11
Q

pit cells

A

Natural killer cells?

12
Q

Enterocytes

A

surface absorptive cells- contain microvilli
Main Functions: Absorb water and nutrients & terminal digestion in glycocalyx cells produce the enzymes and absorb the monosaccharides and peptides created.

13
Q

clear cells

A

Cholangiocytes- have many microvilli
function: concentrate bile by absorbing water
Found in the Luminal wall Mucosa

14
Q

DNES cells

A

Live 60-90 days
= Enteroendcrine cells
located in the stomach
Type D: produces somatostatin, inhibits release of hormones by nearby DNES cells & HCL release
Type EC: produces serotonin and substance P, increases gut motility
Type G: produces gastrin. stimulates HCL & pepsinogen secretion, gastric motility, and regenerative cells in body of stomach.