GI histology/embryology

Question 1

what covers the oral cavity, oropharynx and laryngopharynx?

Answer 1

stratified squamous epithelium (non keratinised)

Question 2

the oesophagus contains submucosal glands, true or false?

Answer 2

true

Question 3

what do chief cells secrete?

Answer 3

pepsinogen

Question 4

what cells produces HCl?

Answer 4

parietal cell

Question 5

what happens to the epithelium at the gastro-oesophageal junction?

Answer 5

changes from stratified squamous epithelium to columnar epithelium of the stomach

Question 6

what lines the oesophagus?

Answer 6

stratified squamous epithelium

Question 7

what lines the stomach?

Answer 7

simple columnar epithelium

Question 8

what lines the intestines?

Answer 8

simple columnar epithelium

Question 9

what germ layer forms the epithelium of mucosa, associated ducts and glands?

Answer 9

endoderm

Question 10

what does the visceral mesoderm give rise to?

Answer 10

lamina propria
muscularis muosa
muscularis externa
CT of submucosa and external CT

Question 11

what does the ventral mesenteries give rise to?

Answer 11

lesser omentum

falciform ligament

Question 12

what do the dorsal mesenteries give rise to?

Answer 12

dorsal mesogastrium
dorsal mesoduodenum
dorsal mesocolon