Unformatted text preview: ral clock in the brain. Information from the
central clock is then sent to peripheral clocks in a variety organs and tissues.
If ‘light’ is the primary zeitgeber of the physiome then the
second major zeitgeber is ‘eating/food consumption’. What
is the chronobiology/the biological rhythm of eating?
1. Pheromones override 2. think of a nursing baby and mom Time to eat…
systems analysis of the gastrointestinal tract
Food in vs.
Waste out Perforated tube Sepsis when you get a
hole in a tube vs mental illness of the second
illness 1 15/02/2012
and generally prevent lumen contents from moving backwards 6 muscular sphincters (valves) partially segregate
function in the ‘tube’
Somatic nervous system (voluntary)
Autonomic nervous system (involuntary) oral cavity
Upper esophageal sphincter esophagus
Lower esophageal sphincter stomach small intestine Pyloric sphincter control by the second brain Ileocecal valve large intestine anus Internal anal sphincter
External anal sphincter
3 note direction of motility In the simplest sense, the ‘tube’ has … Four Basic Processes*:
excretion *These proc...
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- Winter '11
- Digestive System, GI Tract, internal anal sphincter, peripheral clocks