Vomiting is a complex, highly coordinated activity involving the gastrointestinal tract, the central nervous system (CNS), and the vestibular system. In 1952, Wang and Borison identified a medullary vomiting center.1 The proximity of the medullary vomiting center to other CNS nuclei allows for the coordinated activity of vomiting. 1 Three stages of vomiting have been described: nausea, retching, and emesis.2 With nausea come hypersalivation and tachycardia. Retching occurs when the pylorus contracts and the fundus relaxes, thereby moving food to the gastric cardia. Finally, emesis occurs when the powerful abdominal muscles contract simultaneously and thus eject food or gastric secretions from the stomach.

The 6 Principles To Six Pack Abs

The 6 Principles To Six Pack Abs

This powerful tool will provide you with everything you need to know to be a success and finally achieve your dream of shedding the tummy fat and reveal your six pack abs. Making weight loss promises to yourself is easy but making them stick is something else which requires much more than just some words and thoughts. In the quest to make weight loss resolutions that eventually see some level of success there needs to be some careful planning and thought exercised beforehand.

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