Embryological Development

Question 1

What structures make up the foregut?

Answer 1

Oesophagus - duodenum

Question 2

What structures make up the midgut?

Answer 2

Distal 2/3 of the duodenum to the transverse colon

Question 3

What structures make up the hindgut?

Answer 3

Distal 2/3 of transverse colon to the upper anal canal

Question 4

What does the splanchnopleuric mesoderm form?

What does somatopleuric mesoderm form?

What does the intraembryonic coelom form?

Answer 4

Visceral structures

Dermal layer

Abdominal and thoracic body cavities

Question 5

What does the parietal peritoneum associate with?

What does the visceral peritoneum associate with?

Answer 5

Somatopleuric mesoderm

Splanchnopleuric mesoderm

Question 6

Why do the somatic structures feel more localised pain than visceral structures?

Answer 6

The somatopleuric mesoderm has good sensory innervation whereas splanchnopleuric mesoderm is poorly innervated

Question 7

What supplies blood to the:
Foregut
Midgut
Hindgut

Answer 7

Foregut - coeliac artery
Midgut - superior mesenteric artery
Hindgut - inferior mesenteric artery