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at the junction of the esophagus and stomach
Marielle Crist
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∙ 12y agocardia
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How does the esophageal sphincter work?
During peristalsis, the esophageal sphincter allows the food bolus to pass into the stomach. It prevents chyme, a mixture of bolus, stomach acid, and digestive enzymes, from returning up the esophagus. An overly loose esophageal sphincter leads to heart burn because the stomach acid "burns" the esophagus. An overly tight esophageal sphincter is known as achalasia and leads to pain on swallowing, regurgitation of food, and cheat pain.
What characteristics does an abnormal esophageal function test have?
there are many diseases that cause poor relaxation of the lower esophageal sphincter. When no cause is found, the disease is called achalasia. Abnormal results of pH tests can confirm symptoms.
Sphincter that opens when food or fluid exert pressure on it?
Pharyngeal-esophageal
What is the name of the sphincter that opens when food or fluids exert pressure on it?
Esophageal, duodenal, urethral, and anal would all seem to fit that description.
What drugs reduce lower esophageal sphincter tone?
Any drug that is in the narcotic family, especially muscle relaxants. You need a doctor's prescrption to obtain any of these types of drugs. The muscle would not actually weaken, only become more relaxed as a result of the drug's effects.
What sphincter must open to permit vomiting?
The lower esophageal sphincter must open to permit vomiting.
The sphincter muscle that controls access to the stomach from the esophagus is called?
cardiac sphincter; or gastroesophageal sphincter; or lower esophageal sphincter (LES); or esophageal sphincter from http://en.wikipedia.org/wiki/Cardia
What sphincter is involved in Acid reflux disease?
cardiac sphincter/lower esophageal sphincter (LES)
What sphincter that allows chyme to pass into the small intestine is known as the?
lower esophageal sphincter.
What is the name of the sphincter located between the esophagus and fundus of the stomach?
LES - Lower Esophageal Sphincter
Is the upper or lower esophageal sphincter most responsible for acid reflux problems?
The lower sphincter is responsible for reflux problems
What muscle does the esophagus pass through to reach the stomach?
The lower esophageal sphincter muscle/the cardiac sphincter muscle.
Ring like muscle that controls the flow from the stomach to the small intestine?
lower esophageal sphincter or gastroesophageal sphincter
What is the term for failure of the lower esophageal sphincter to relax?
Esophageal achalasia is the term used for the failure of the lower esophageal sphincter to relax, resulting in functional obstruction of the esophagus, and dysphagia. There is total absence of peristalsis of esophagus, and failure of the lower esophageal sphincter to relax when food or liquid is swallowed. This gives rise to vomiting of food or liquid as soon as it is swallowed. There really isn't any cause but there are some guesses none are proven.
Regurgitation of stomach contents is normally prevented by the actions of the?
lower esophageal sphincter
Backup of food from the small intestine to the stomach is prevented by the?
Lower Esophageal Sphincter
What muscle is located at the upper and lower end of our stomach?
Both the upper and lower ends of the stomach have a sphincter that regulates flow into and out of the stomach. The lower esophageal sphincter is at the top of the stomach, and the pyloric sphincter is at the lower end of the stomach.
