The lower esophageal sphincter must open to permit vomiting.
Lower Esophageal Sphincter
Viruses.
Increasing urine pressure due to contraction of the full bladder
the cardiac sphincter opens involuntarily during peristalsis, which is the process of wavelike muscle contractions of the alimentary tract that moves food along the oesophagus down to the stomach. :)
Your esophagus traverses the thoracic cavity in the body. If it is patulous, that means that the sphincter muscle at one end is open, and is not working properly.
Precapillary sphincters are small, ring-like muscles that can close or open parts of a capillary bed, depending on the oxygen and nutrient demands for the tissue
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1) The detrusor muscle must contract 2) The internal urethral sphincter must open 3)The external urethral sphincter must open
Peristalsis.
It is a combination of hormones, brain signals, and sensor tissue near the sphincter.
acidic ph
Peristalsis.
There is no statutary limit on age for open carry. BUT you must have a gun permit which has an age requirement of 21 years.
sphincter
The stomach acid (hydrochloric acid) that breaks down your food is extremely powerful, so, constant vomiting will wear away the lining of your esophagus. Eventually, you may wear holes in your esophagus, which can be fatal. Even if this doesn't happen, you will most likely have acid reflux for the rest of your life, since all the vomiting weakens your cardiac sphincter, which is basically like the lid of your stomach: it keeps the acid from splashing up into your esophagus. After years of vomiting many times a day, the sphincter constantly flaps open like the lid of a garbage can.
Viruses.
The sphincter of Oddi (hepatopancreatic sphincter), controls the release of pancreatic enzymes and bile into the duodenum. During digestion, intestinal phase signals stimulate the release of bile.
Increasing urine pressure due to contraction of the full bladder