3 Things that happen in the Oral Cavity:
https://www.youtube.com/watch?v=o18UycWRsaA
Sound of stomach growling:
https://www.youtube.com/watch?v=pZ7hBWd5ldY
- Mastication the action of chewing and mechanically breaking down food.
- exocrine glands excrete a watery liquid called saliva dampens the food making it more chewable
- When you want to swallow, you're brain triggers waves of muscular contractions that squeeze food along you're esophagus.
- Pepsin: Digests proteins.
- Hydrochloric Acid: Denatures proteins.
- Intrinsic Factors: Protects and allows later absorption of vitamin B12.
- Mucus: Lubricates Chyme.
- Water: Dilutes food and other substances.
- Duodenum: Partially digested food is mixed with bile and pancreatic juice, and completes digestion.
- Jejunum: Primary state of nutrient absorption.
- Ileum: Empties into the large intestine and completes nutrient absorption.
- The major function of the colon is to reabsorb fluids and process waste in the body and prepare for its elimination.
- Some causes of diarrhea are Inflammatory bowel disease, irritable bowel syndrome, viral or bacterial infections, or a bad reaction to medicine.
- Submucosa: layers of dense irregular connective tissue, supports the mucosa.
- Mucosa: innermost layer of the GI tract that is composed of simple epithelium cells.
- Serosa: secretory epithelial layers and a thin connective tissue layer that reduce the friction from muscle movement.
- Muscularis: thin bit of smooth muscle.
https://www.youtube.com/watch?v=o18UycWRsaA
Sound of stomach growling:
https://www.youtube.com/watch?v=pZ7hBWd5ldY