BIOL 221 Lecture Notes - Lecture 8: Vagus Nerve, Vitamin K, Pancreatitis
4 Mar 2020
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Impulses from the vagus nerve, secretin and cholecystokinin stimulate secretion. Activation of enzymes within pancreas (pancreas digests itself) Pancreatitis is an inflammation of the pancreas. Causes include excessive fat in the blood and activation of enzymes within the pancreas itself. Larger in diameter, but shorter (~1. 5 m) than small intestine. Normal intestinal flora dominated by escherichia coli (e. coli) The large intestine is larger in diameter, but shorter (~1. 5 m) than the small intestine. The normal intestinal flora dominated by escherichia coli (e. coli). No additional breakdown of molecules except by bacteria. Reabsorption of water and electrolytes (topic 11) There is no additional breakdown of molecules except by bacterial enzymes. The bacteria ferment some carbohydrates (e. g. , lactose) and produce acids and gases as a result. The bacteria also synthesize some b vitamins and vitamin k. the vitamins produced by bacteria are absorbed in the large intestine. Reabsorption of water and electrolytes (topic 11) also occurs.
