04sept07 - NS 1150 Lecture 4: the stomach Swallowing o...

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NS 1150 Lecture 4: the stomach - Swallowing o Esophagus (located right after the Trachea) (tube that the food goes down) o Trachea: breathing Epiglottis: flap on top of this. Closes off o Heimlich Maneuver Once in a while food goes down to Trachea accidentally. You use the  Heimlich Maneuver, which is putting pressure on the diaphragm to have  the food out from the trachea Choking person cannot ask for help Gently Slat Back o Touch Receptors When the ball of food touches these receptors, this initiates the whole GI  tract.  Peristaltic Contraction : sequence of reflexes of contraction and  relaxation to move the ball of food down the GI tract.  Drinking tea or  warm water  initiates peristalsis, enabling someone to go to the bathroom.  o Esophageal Sphincter Concentrated ring of muscle before the stomach, which opens up when  the Peristaltic contraction hits, but closes to keep the food in. 
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This note was uploaded on 10/21/2009 for the course NS 1150 taught by Professor Levitsky during the Fall '05 term at Cornell University (Engineering School).

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04sept07 - NS 1150 Lecture 4: the stomach Swallowing o...

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