Ø Small Intestines
- Averages of 2.5 cm in diameter and 3m long
- Extends from the pyloric sphincter to the ileocecal sphincter
- Divided into 3: duodenum, jejunum and ileum
- Mechanical digestion involves segmenting and migrating motility
- Parasympathetic increases motility thus sympathetic decreases
- Absorption of nutrients, electrolytes, vitamins and water
- Extends from ileocecal sphincter to the anus
- Regions are cecum, colon (ascending, transverse, descending), rectum, anal canal
- Haustral churning and peristalsis
- Bacteria of large intestine produce some B vitamins and vitamin K
- Absorption of some water, electrolytes
- Process of defacation
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