Answer:
the esophageal sphincter
Explanation:
This muscle opens and lets food and liquid enter the stomach and closes to prevent the food and liquid from leaking back into the esophagus, however if it is not working properly it could open and close at the wrong times
Answer:
11111.111
Explanation:
Same to you! Thank you and have a great day!
Stronger heart and lungs. Increased bone density. Reduced stress. Reduced risk of heart disease and some types of cancer.