Definitions from the Web
Cardiac Sphincter
Description:
The cardiac sphincter, also known as the lower esophageal sphincter (LES), is a circular band of muscle located at the junction between the esophagus and the stomach. It acts as a valve, controlling the flow of food and preventing stomach acid from flowing back into the esophagus.
Sample Sentences:
- The cardiac sphincter relaxes to allow food to enter the stomach.
- If the cardiac sphincter is weakened, it can lead to acid reflux and heartburn.
- Problems with the cardiac sphincter can result in gastroesophageal reflux disease (GERD).
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