GI Tract Histo Chart

Question 1

simple columnar epithelium

Answer 1

stomach
small intestine
large intestine

Question 2

rugae

Answer 2

stomach

Question 3

villi

Answer 3

small intestine (mucosa)

Question 4

skeletal muscle

Answer 4

esophagus (upper 1/3)
large intestine (distal anal canal but outside the wall)

Question 5

Crypts of Lieberkühn (aka intestinal glands, intestinal crypts)

Answer 5

small intestine

large intestine

Question 6

Peyer’s Patches

Answer 6

small intestine (ileum)

Question 7

columnar absorptive cells

Answer 7

small intestine (enterocytes)
large intestine (colonocytes)

Question 8

oblique layer of smooth muscle

Answer 8

stomach (innermost layer of smooth muscle of muscularis externa

Question 9

teniae coli

Answer 9

large intestine (except rectum, anal canal, and veriform appendix)

Question 10

plicae circularis

Answer 10

small intestine

Question 11

surface mucous cells

Answer 11

stomach

Question 12

goblet cells

Answer 12

small intestine

large intestine

Question 13

chief cells

Answer 13

stomach

Question 14

paneth cells

Answer 14

small intestine

Question 15

parietal cells

Answer 15

stomach

Question 16

enteroendocrine cells

Answer 16

stomach
small intestine
large intestine

Question 17

any adventitia

Answer 17

esophagus
small intestine (part of the duodenum)
large intestine (ascending c., descending c., rectum, anal canal)

Question 18

any serosa

Answer 18

esophagus (very distal end)
stomach
small intestine
large intestine (transverse colon, sigmoid colon, etc)

Question 19

nonkeratinized stratified squamous epithelium

Answer 19

esophagus
large intestine (distal portion of anal canal)

Question 20

microvilli

Answer 20

small intestine

large intestine

Question 21

mucous neck cells

Answer 21

stomach

Question 22

Brunner’s glands

Answer 22

small intestine (submucosa of the duodenum)

Question 23

cardiac, fundic, or pyloric glands

Answer 23

stomach

Question 24

proper (in the submucosa) esophageal glands and esophageal cardiac glands

Answer 24

esophagus

Question 25

colonocytes

Answer 25

large intestine (muscosa)

Question 26

enterocytes

Answer 26

small intestine (mucosa)

Question 27

glands located in the submucosa

Answer 27

esophagus: esophageal glands proper small intestine: Brunner's gland large intestine: anal glands

Question 28

stem cells

Answer 28

esophagus (cuboidal basal cells & deepest parabasal cells) stomach small intestine (intermediate cells) large intestine

Question 29

aggregated lymphatic nodules

Answer 29

``` small intestine (Peyer's patches in the ileum) large intestine (veriform appendix) ```

Question 30

haustra

Answer 30

large intestine (cecum and colon)

Question 31

bacterial flora

Answer 31

esophagus stomach small intestine large intestine