Purpose of the GI Tract
Food digestion and absorption of nutrients and water
Primary disorders of the GI tract are related to:
Damage from gastric acid secretion and abnormal food movement through the GI tract

GI Tract: Route (start to finish)

Digestive Process
GI tract layers- inside to outside

Stomach Secretions
Layers of Small Intestines (3:4)

Length of Small Intestine
5 to 6 meters long

Parts of the small intestine

Intestinal digestion and absorption- Process

Large intestine- Parts

Length of Large Intestine
1.5M long
Layers of Large Intestine

Large & Small Intestine Innervation

Referral Patterns Right Upper (3)
Called the Right Hyporchondriac Region

Referral Patterns Right Middle (4)
Called Right Lumbar Region

Referral Pattern- Right Lower (4)
Called Right Iliac Region

Referral Pattern- Mid upper (5)
Called Epigastric Region

Referral Pattern- Mid-Middle/ center (4)
Called Umbilical Region

Referral Pattern- Mid-Lower (4)
Called Hypogastric Region

Referral Pattern- Left Upper (3)
Called Left Hypochondriac Region

Referral Pattern- Left Middle (3)
Called Left Lumbar Region

Referral Pattern- Left Lower (3)
Called Left Iliac Region

Referred pain patterns- pain from the vermiform appendix and colon to the area of sensory distribution for the 11th thoracic nerve
McBurney’s point on Spino-umbilical point - halfway between the ASIS and Umbilicus. usually on the R side. Gentle palpation of McBurney’s point produces pain or exquisite tenderness. Pinch an inch test should also be checked here.
