Hiatus (anatomy)

In anatomy, a hiatus is a natural fissure in a structure. Examples include:
 * Esophageal hiatus, the opening in the diaphragm through  which the esophagus passes from the thorax into the abdomen
 * Hiatus for greater petrosal nerve
 * Maxillary hiatus
 * Sacral hiatus
 * Semilunar hiatus
 * Adductor hiatus