ANP 330 Lecture Notes - Lecture 59: Hiatus Hernia, Hernia, Thoracic Cavity
Document Summary
An increase in pressure or volume in the stomach closes the cardia and blocks reflux into the esophagus. Herniation of a portion of the stomach into the esophagus through an opening, or hiatus, in the diaphragm. Most common abnormality found on x-ray examination of upper gi tract. A hiatus hernia occurs when the upper part of the stomach, which is joined to the esophagus moves up into the chest through an enlargement (called a hiatus) in the diaphragm. Two types of hiatal hernias & difference rolling or sliding. Sliding: the junction of the stomach & esophagus is above the hiatus of the diaphragm & a part of the stomach slides through the hiatal opening in the diaphragm. The stomach slides into the thoracic cavity when the client is supine & usually goes back into the abdominal cavity when the client is standing upright.
