2.3 The Blood Supply to the Gut Tube Flashcards
What are the 3 main branches of the Abdominal Aorta which supply the Gut Tube?
- The Coeliac Trunk
- The Superior Mesenteric Artery
- The Inferior Mesenteric Artery
At what Vertebral Level does the Coeliac Trunk branch off at?
T12 - Just below the Diaphragm
At what Vertebral Level does the Superior Mesenteric Artery branch off at?
L1
At what Vertebral Level does the Inferior Mesenteric Artery branch off at?
L3
Which artery supplies the Foregut?
The Coeliac Artery
Which artery supplies the Midgut?
The Superior Mesenteric Artery
Which artery supplies the Hindgut?
The Inferior Mesenteric Artery
What are the structures in the Foregut?
- The Abdominal Oesophagus
- The Stomach
- The Duodenum until the Major Dunodenal Papilla
What are the structures in the Midgut?
- The Duodenum from the Major Duodenal Papilla
- The Jejunum
- The Ilium
- The Caecum
- The Appendix
- The Ascending Colon
- The Proximal 2/3 of the Transverse Colon
What are the structures in the Hindgut?
- The Distal 1/3 of the Transverse Colon
- The Descending Colon
- The Sigmoid Colon
- The Rectum
What are some Foregut and Midgut derived Organs which are not part of the Gut Tube?
- Spleen
- Liver
- Gallbladder
- Pancreas
What type of Venous system drains Blood from the Abdominopelvic Gastrointestinal Tract?
A Portal System
What is a Portal System?
A vascular arrangement where the blood from one’s organs capillaries is transported to the capillaries of another organ - Blood going from 1 organ to another without passing the heart.
The Hepatic Portal Vein is formed by the Union of which 2 major veins of the Abdominal Cavity?
- The Superior Mesenteric Vein
2. The Inferior Mesenteric Vein
Where does blood from the Gut Tube superior to the Diaphragm, and inferior to the Pelvic Floor, drain via?
Systemic Circulation