Histology

Question 1

epithelium in oral cavity, oro+laryngopharynx

Answer 1

non-keratinised stratified squamous epithelium

Question 2

nasal cavity and nasopharynx are covered in __ epithelium

Answer 2

respiratory

Question 3

histological distinguishing feature of foliate papilla

Answer 3

lots of crypts

Question 4

histological distinguising feature of circumvallate papilla

Answer 4

glands at either side

Question 5

histological distinguishing features of filiform papilla

Answer 5

rough and keratinised

Question 6

In posterior 1/3 of tongue ___ allow access to lots of ___ tissue

Answer 6

crypts

lymphoid

Question 7

Oesophagus has ___ in submucosa

Answer 7

mucous secreting glands

Question 8

Gastric pits from surface downwards name parts and what cells predominate

Answer 8

isthmus - parietal
neck - mucous and stem
base - chief, enteroendocrine and parietal

Question 9

Chief cells contain ___ and so stain ___

Answer 9

zymogen granules

dark purple

Question 10

parietal cells stain ___ than chief cells but have lots of ___

Answer 10

lighter

mitochondria

Question 11

mucosa in cardia of stomach =

Answer 11

deep pits with loosely packed tortuous glands in them

Question 12

mucosa in body of stomach =

Answer 12

shallow pits with long straight glands

Question 13

mucosa in pylorus of stomach =

Answer 13

deep pits with branched coiled glands (denser than in cardia)

Question 14

Compared to rest of GI tract stomach has an extra ___ in muscularis externa

Answer 14

inner oblique layer

Question 15

In small intestine Villi project upwards next to ___

Answer 15

crypts of Lieberkuhn

Question 16

Cells in the small intestine wall:

Answer 16

enterocytes
goblet
paneth
neuroendocrine
stem

Question 17

Enterocytes in small intestine are __ with a __

Answer 17

columnar with a brush border

Question 18

paneth cells are found ___ in the small intestine

secrete:

Answer 18

in the base of crypts

lysozyme and defensins

Question 19

neuroendocrine cells in small intestine secrete:

Answer 19

hormones eg. VIP, gastrin, CCK

Question 20

2 types of cells found at base of crypts in small intestine

Answer 20

stem cells

paneth cells

Question 21

Duodenum has ___ in submucosa which neutralises acid

Answer 21

Brunner’s glands

Question 22

2 areas in GI tract with glands in submucosa =

Answer 22

oesophagus and duodenum

Question 23

plicae circularis =

Answer 23

gross fols in jejunum

Question 24

Ileum has GALT called ___ in ___

Answer 24

peyer’s patches in submucosa to lamina propria

Question 25

Large intestine has + ells in ___glnads that go to the muscularis mucosae

Answer 25

goblet and absorptive

straight tubular glands

Question 26

3 strips of longitudinal muscle in colon =

Answer 26

teniae coli

Question 27

Appendix is similar histologically to colon but ___+_

Answer 27

crypts are less abundant

circular arrangement of lymphoid tissue in submucosa

Question 28

Abrupt change from colon epithelium with tubular glands to stratified squamous epithelium continuous with the skin =

Answer 28

rectoanal junction

Question 29

Myenteric plexus controls

Answer 29

motility of the gut

Question 30

Submucosal plexus controls

Answer 30

muscularis mucosae an secretions