Microanatomy

Question 1

Cells of salivary glands - staining

Answer 1

mucous ancinus - light, nucli pushed outwards due to mucous granules
Serous ancinus- dark - zymogen granules - amylaze
-both have myopethlial cells around outside
Striated ducts - lots of mitochonidra - active transport of Hco3- outside (pumps K+ and HCO3- outside, and gets NA, CL- inside)

Question 2

Function of saliva

Answer 2

Lubrication - glycoproteins
Proteiction - bicarb - bacteria, acidic vomit
-lysozymes, lactoferri, immunoglob A
DIgestion - amylaze, lipase (worsk in stomach) , kallikrein (increase blood supply by cleaving protein involed in this)

Question 3

Control of salivary secretion

Answer 3

PSNS - increase secretion, increase blood vessles, myoepethilail cells contract
ANS - small, conc salvia, decrease blood vessel size

Question 4

Chief cells vs parietal cells - microscope

Answer 4

chief - zymogen granules (pepsinogen) , parietal- intracellular cancliucli

Question 5

Diagram of enteroednocrine cells stimulating things

Answer 5

..

Question 6

Striated ducts

Answer 6

mitochondira

Question 7

what cells line the oesophagus

Answer 7

mesothelial cells

Question 8

what does outer longitduinal llok like?

Answer 8

dots, and inner ciruclar are lines

Question 9

what is gastric gland folding

Answer 9

mucosa

Question 10

what do parietal cells look likee

Answer 10

eggs, light staining

Question 11

what do chief cells look like?

Answer 11

dark staining - zymogen gradunels