Tags: Anatomical Structure.
The ostium of the Fallopian tube (plural ostia) may refer to the proximal or distal opening of the tube.The proximal tubal opening (ostium or os) is located within the uterus at the uterotubal junction and accessible via hysteroscopy. Occlusion at this opening is referred to as proximal tubal occlusion.The distal tubal opening (or abdominal ostium) is the opening in the infundibulum of uterine tube into the abdominal cavity.
