| 释义 |
- Human anatomy
- Other uses
- See also
{{wikitionary|ostium}}An ostium (plural ostia) in anatomy is a small opening or orifice. Ostium or ostia may refer to: Human anatomy- Ostium of fallopian tube
- Ostium of the uterus (disambiguation)
- Ostium primum of the developing heart
- Ostium secundum (foramen ovale) of the developing heart
- Ostium maxillare of the maxillary sinus
- Ostium vaginae (vaginal orifice)
- Coronary ostium (Opening of coronary arteries at root of aorta, superior to aortic valve)
- Sinus ostium an opening that connects a sinus to the nasal cavity itself.
Other uses- Ostium (sponges), the pores of living sponges
- Ostia of female lepidoptera genitalia
See also- {{Intitle|Ostium}}
- Pore (disambiguation)
- Foramen
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