The lower esophageal sphincter keeps food from coming back up, or vomiting. When you have to vomit, the sphincter opens allowing the food to come back up. There is another sphincter, the pyloric sphincter which leads into the small intestine. Hope this helps!
If the stomach did not have sphincter muscles, it would lead to uncontrolled movement of food and gastric contents. This could result in the backflow of stomach acid into the esophagus, causing acid reflux or gastroesophageal reflux disease (GERD). Additionally, the inability to regulate the passage of food into the intestines could disrupt digestion and nutrient absorption, leading to potential malnutrition and digestive disorders. Overall, sphincter muscles play a crucial role in maintaining digestive health and function.
movement of muscles to move the bolus downward
Muscles play a crucial role in digestion by helping to move food through the digestive tract. In the mouth, throat, and esophagus, muscles help to chew and swallow food. In the stomach and intestines, muscles contract and relax to push food along and aid in the mixing and digestion process.
True. Smooth muscles in the stomach play a crucial role in mechanical digestion by contracting rhythmically to churn and mix the food with gastric juices. This process helps break down food into smaller particles and facilitates the enzymatic digestion that follows.
The opening at the end of the gut is the anus, which serves as the exit point for waste material after digestion. It is part of the digestive system and plays a critical role in the excretion of feces from the body. The anus is surrounded by sphincter muscles that help control the release of stool.
The rings of muscles that control entry into or exit from an organ are called sphincters. These circular muscles contract and relax to regulate the passage of substances through various openings in the body, such as the esophagus, stomach, and intestines. Sphincters play a crucial role in maintaining bodily functions by controlling the flow of food, waste, and other materials. Examples include the lower esophageal sphincter and the anal sphincter.
no
They involve in digestion.
it sends broken down food to the stomach for digestion
It is the organ that stores bile.
to absorb food
It is the organ that stores bile.