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What sphincter must open to permit vomiting?
The lower esophageal sphincter must open to allow for vomiting. This sphincter is located at the junction of the esophagus and stomach, and its relaxation allows the contents of the stomach to be expelled back up through the esophagus.
What happens for micturition to occur?
1) The detrusor muscle must contract 2) The internal urethral sphincter must open 3)The external urethral sphincter must open
What makes the pyloric sphincter open and close?
The pyloric sphincter opens in response to the presence of food in the stomach. This triggers a reflex that relaxes the sphincter, allowing food to pass into the small intestine. The sphincter closes to prevent the backflow of intestinal contents back into the stomach.
How does pyloric sphincter know when to open to let out a little chyme and then close?
The pyloric sphincter opens in response to food entering the stomach. Stretch receptors in the stomach wall detect the food volume, signaling the sphincter to open and allow a controlled amount of chyme to pass into the small intestine for further digestion. Once the chyme has passed through, the sphincter closes to prevent backflow.
How does pyloric sphincter knows to open for chyme and when to close?
The pyloric sphincter opens in response to the presence of acidic chyme in the stomach. This triggers hormonal and neural signals that stimulate the sphincter to relax and allow the chyme to pass into the small intestine. Once the chyme has been emptied, feedback mechanisms signal the pyloric sphincter to close to prevent backflow of contents into the stomach.
What is the sphincters function?
They are variable controls which can open to allow the passage of material and then closed to prevent further passage of materials. If you didn't have an anal sphincter you'd really have problems.
What process does cardiac sphincter open involuntary?
Peristalsis.
During what process does the cardiac sphincter open involuntary?
Peristalsis.
What do you call an incision in the stomach?
At the top of the stomach where it connects to the esophagus is a sphincter. At the lower end of the stomach where it connects to the small intestines is a second sphincter. Both of these openings will open to let material pass through, then close to prevent back-flow. Acid Reflux occurs when stomach acids leak through the faulty sphincter and the acids irritate the esophagus.
What is a muscle that acts as bowels to open and close the openings are called what type of muscle?
sphincter
How does bulimia affect the esophagus?
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.
What sphincter controls the release of bile and pancreatic juice into the small intestine?
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.
