-called package of chewed food bolus. During the voluntary phase of swallowing, the tongue and the bolus of food moves to the top and back. Once the bolus reaches the back of the throat, and all actions become involuntary - they occur outside your conscious control. During the first of these stages it is voluntary, and the muscles moving the food down and get back into the esophagus. Finally, it is actively transport food through the esophagus to the stomach. By actively, I'm referring to the fact that during the movement of the esophagus i[size=2][font=arial, sans-serif]Exo Slim s the result of a series of effective coordinated movements by the sphincter muscles lining of the esophagus - and not as a result of gravity. Specifically, the muscles of the esophagus longitudinal pull up and relax the lower parts so that the circular bands of muscles that line the esophagus can constrict and transfer bolus come down to the stomach. In fact, although it is not recommended, you can easily swallow when they hang upside down. [/font][/size]
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