Sphincter Muscle Diagram. Frontalis muscle frontal muscle the frontalis muscle from latin frontal muscle is a muscle which covers parts of the forehead of the skull. Sphincter muscles are classified by their location within the body.
Where are these muscles. When done correctly these exercises can build up and strengthen the muscles to help you to hold both gas and stool in the back passage. If there is a loss of muscle control in the sphincter fecal incontinence may occur.
There are two sphincter muscles.
In turn the gastroesophageal junction is surrounded by the lower esophageal sphincter also known as the cardiac sphincter. Where is it located. The pyloric sphincter is a band of smooth muscle that controls the movement of partially digested food and juices from the pylorus into the duodenum. Its position andrelation to.