Histology

Question 1

what appear to be ‘spaces’ between cells in the epithelium are actually?

Answer 1

mucous secreting goblet cells

Question 2

of the gut tube, what can you view at magnification x4?

Answer 2

mucosa
submucosa
muscularis externa
serosa/adventitia

Question 3

of the gut tube, what can you view at magnification x40?

Answer 3

mucosa:

epithelium, lamina propria and muscularis mucosae

Question 4

where in the gut tube would you find large amounts of payers patches?

Answer 4

ileum

Question 5

what is the function of paneth cells and where are they found?

Answer 5

found at the bottom of crypts of leiberkhun

they secrete lysozymes and secretory phospholipase A2

Question 6

what cells are found going up the sides of the crypts of leiberkhun?

Answer 6

parietal cells

Question 7

what is characteristic of histology of the large intestine?

Answer 7

no villi

thick mucosa with crypts and mucous secreting cells

Question 8

how would you identify the different parts in a pancreas slide?

Answer 8

acini - strongly stained

islets of lagerhands - poorly stained

Question 9

how would you identify the the spleen on a histology slide?

Answer 9

white and red pulp
white pulp = pale nodule
red pulp = highly vascular cords of cells, darkely stained

Question 10

how would you differentiate between the stomach and the small intestine on a histology slide?

Answer 10

the stomach has no villi or goblet cells. it will have short gastric pits
the small intestine will have simple columnar epithelium with glands in its submucosa