03Sept04 - Sept 4th Lecture 3 NS 1150 Chewing Tube going...

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Sept 4 th   Lecture 3 NS 1150 Chewing Tube going from mouth to anus which makes us a donut…. - Bad stuff needs to stay out. (viruses; prions (change our protein); bacterias) Process of digestion Cephalic phase:  - It starts when we smell the food. This smell can either make us encouraged or reject  food. - The second test is the eye test, and the food must pass this after. - Whole series of reactions that are modulated by the parasympathetic nervous system  happens. (signal to stomach; mucus starts getting secreted)(goes also to pancreas  production of insulin) Salivary Glands:  - Functions:  o Lubricate; Contains several proteins which act as enzymes and lubricate. (the  esophagus does not have other lubrication)  o Antibacterial: First line of defense. o Begins Digestion (not so we can absorb the nutrients) Lipase (a little)– breaks triglycerides into fatty acids + glycerol. Take fat and break down to fatty acids (stink) and waits until it 
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03Sept04 - Sept 4th Lecture 3 NS 1150 Chewing Tube going...

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