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antrum
A natural chamber or cavity, including
- a dilation in the esophagus near the stomach (forestomach)
- a cavity in the epithelium that envelops the oocyte
- a cavity between the middle ear & temporal bone (tympanic antrum)
- initial portion of the gastric pyloris (pyloric antrum)
- maxillary antrum or maxillary sinus
Specific
maxillary sinus; maxillary antrum
pyloric antrum; gastric antrum
tympanic (mastoid) antrum
General
anatomic structure
References
- Wikipedia: Antrum
https://en.wikipedia.org/wiki/Antrum