Get Antrum essential facts below. View Videos or join the Antrum discussion. Add Antrum to your topic list for future reference or share this resource on social media.

This is a disambiguation page for the biological term. For the 2018 horror movie, see Antrum (film)

In biology, antrum is a general term for a cavity or chamber, which may have specific meaning in reference to certain organs or sites in the body.

In vertebrates, it may refer specifically to:

  • Antrum follicularum, the cavity in the epithelium that envelops the oocyte
  • Mastoid antrum, a cavity between the middle ear and temporal bone in the skull
  • Stomach antrum, either
    • Pyloric antrum, the lower portion of the stomach. This is what is usually referred to as "antrum" in stomach-related topics,[]
    • or Antrum cardiacum, a dilation that occurs in the esophagus near the stomach (forestomach)
  • Maxillary antrum or antrum of Highmore, the maxillary sinus, a cavity in the maxilla and the largest of the paranasal sinuses

In invertebrates, it may refer specifically to:

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



Music Scenes