Components
Digestion can be broken into 3 stages
1. Break down of solid food
2. Nutrient absorption
3. Water absorptionBut where do these stages occur?
Stage 1: The Blender
The Players: Mouth – Mechanical
breakdown Salivary Glands –
chemical breakdown Esophagus - transport Stomach – complete
breakdown
- Mouth: The Pulverizer, big pieces into little pieces
- Salivary Glands: secrete enzymes in saliva
- Esophagus: lined with smooth muscle and mucus.
- Stomach: secretes HCl and digestive enzymes. Contracts and churns to aid in digestion
Esophageal sphincter
Stage 1: The BlenderThe Players: Mouth – The Juggernaut Salivary Glands – The Assassin Esophagus – Getaway Driver/Vehicle Stomach – Demolitions Expert
Stage 2: The Filter
The Player: Small Intestine
Duodenum : Adds bile from bile duct, more digestion (10 inches)
Jejunum: Nutrient absorption (3 feet)
Ilium: Nutrient absorption (6 feet)Why the difference in length?
Stage 2: The FilterThe Player: The Mosh Pit Duodenum : “DJ Bile” plays your jam!
OMG! Jejunum: Wall of mosh pit churns and
jostles the “moshers.” The Drop = high Intensity
Ilium: Outro of song = low intensity
Stage 3: The Sponge
The Player: Large Intestine
Colon– Water absorption. Bacterial digestion = vitamins and methane.
Rectum– Storage Anus- . . . EXIT
Stage 3: The Sponge
Colon – “The Hugger,” Dab, Dab, Don’t Rub.
Rectum & Anus – Keeps “old things”. Highly sensitive. So sensitive and hip, you probably wouldn’t understand.
The Player: Large Intestine - The Transcendental Hipster Lovely Aroma