Histology

Question 1

what are the different forms of mucosa in the GI tract?

Answer 1

absorptive
secretory
protective
absorptive/protective

Question 2

where would you find protective mucosa?

Answer 2

oral cavity, pharynx, oesophagus, anal canal

Question 3

what type of mucosa would the small intestine have?

Answer 3

absorptive

Question 4

what type of mucosa would you find in the large intestine?

Answer 4

absorptive/protective

Question 5

where would you find secretory mucosa?

Answer 5

stomach

Question 6

what are the layers of the gut tube?

Answer 6

mucosa (epithelium, lamina propria and muscularis mucosae)
submucosa
muscularis externa
adventitia/serosa

Question 7

what type of epithelium is found in the gut tube?

Answer 7

mouth, oesophagus, anal canal= stratified squamous

stomach, small and large intestine = simple columnar

Question 8

in what parts of the gut tube would you find glands in the submucosa?

Answer 8

oesophagus and duodenum

Question 9

what histological features are found in the pancreas?

Answer 9

islets of langerhans - clump of poorly stained cells
pure serous acini composed of strongly stained cells
small lobules surrounded by connective tissue septa

Question 10

what is the main components of white pulp and red pulp in the spleen?

Answer 10

white pulp = lymphatic tissue = WBC and lymphocytes

Red pulp = blood filled cavities and splenic cords for filtration of RBC