orifice

Introduction

Any aperature or opening.

More specific terms

• aortic orifice/ostium
• atrioventricular orifice
• cardial orifice (cardiac or esophagogastric orifice, cardial opening)
• coronary orifice (ostium/opening of coronary sinus)
• external urethral orifice
• frenulum of ileocecal valve/ileal orifice; Morgagni retinaculum/frenum
• ileal orifice (ileocecal orifice or opening, opening of ileal papilla)
• internal urethral orifice
• maxillary orifice/ostium/duct
• mitral orifice; left atrioventricular/bicuspid orifice
• orifice (ostium) of vermiform appendix
• pyloric orifice (gastroduodenal orifice)
• tricuspid (right atrioventricular) orifice
• ureteric orifice
• vaginal orifice

Additional terms

• meatus