| 1. | The coronary ostia are involved in the dissection .
解剖时要牵动冠状动脉口。 |
| 2. | The heart is dorsal and is provided with paired ostia .
心脏位于背方，有一对心门。 |
| 3. | Ostium pharyngicum tub pharyngotympanic
咽鼓管咽口 |
| 4. | Ostium tympanicum tub pharyngotympanic
咽鼓管鼓口 |
| 5. | Ostia venosa atrioventricularia
房室静脉口 |
| 6. | Ostium atrioventriculare sinistrum
左房室口 |
| 7. | Ostium atrioventriculare dextrum
右房室口 |
| 8. | Internal ostium of the uterus
子宫内口 |
| 9. | Ostium arteriosum sinistrum
左动脉口 |
| 10. | Ostium arteriosum dextrum
右动脉口 |
