Foregut Structures, Blood Supply and Innervation
- Esophagus
- Lower Respiratory Tract
- Stomach
- Proximal Duodenum
- Liver
- Gallbladder
- Pancreas
- Spleen
- Celiac Artery
- Vagus Nerve
Midgut Structures, Blood Supply and Innervation
- Distal Duodenum
- Jejunum
- Ileum
- Appendix
- Ascending Colon
- Proximal 2/3 of Transverse Colon
- Superior Mesenteric Artery
- Vagus Nerve
- Lesser Splanchnic Nerve
Inguinal Canal
- 2MALT
- 2 Muscles Form the Roof
- Internal Oblique
- Transverse Abdominus Muscle
- 2 Aponeuroses Form the Anterior Wall
- External and Internal Abdominal Oblique Aponeuroses
- 2 Ligaments Form Floor
- Lacunar Ligament
- Inguinal Ligament
- 2 T's Form the Posterior Wall
- Transversalis Fascia
- Conjoint Tendon
- Deep Ring is Defect in Transversalis Fascia
- Superficial Ring is Formed by Defect in the External Abdominal Oblique Aponeurosis
Hindgut Structures, Blood Supply and Innervation
- Distal 1/3 of Transverse Colon
- Descending Colon
- Sigmoid Colon
- Rectum
- Pectinate (Dentate) Line
- Urogenital Sinus
- Inferior Mesenteric Artery
- Lumbar Splanchnic Nerves
- Pelvic Splanchnic Nerves
Cholecystokinin (CCK)
- Secreted by I Cells
- Duodenum and Jejunum
- Increase Pancreatic Secretions
- Increase Gallbladder Contraction
- Induce Relaxation of Sphincter of Oddi
- Decrease Gastric Emptying
- Increased by Fatty Acids and Amino Acids
Somatostatin
- Secreted by D Cells
- Pancreas
- GI Tract
- Decrease Secretion of Gastric Acid and Pepsinogen
- Decrease Pancreatic and Small Intestine Fluid Secretion
- Decrease Gallbladder Contraction
- Decrease Glucagon and Insulin Secretion
- Secretion is Increased by Acid
- Secretion is Decreased by Vagal Stimulation
- Octreotide
- Carcinoid Syndrome
- Variceal Bleeds