embryology Flashcards
1
Q
which germ layers is the GI tract derived from?
A
endoderm = epithelium, ducts and glands
visceral mesoderm = lamina propria, muscularis mucosa/externa
2
Q
what is the purpose of rotation of different parts of the t during development?
A
brings the mesenteries into their final position
3
Q
what do ventral mesenteries give rise to?
A
lesser omentum
falciform ligament
4
Q
what do dorsal mesenteries give rise to?
A
dorsal mesogastruim
dorsal mesoduodenum
dorsal mesocolon
5
Q
what are the checkpoints of oesophagus development?
A
week 4 = oesophagus becomes distinguishable
week 5 = circular muscle develops
week 8 = longitudinal muscle develops
