Ostium

An ostium (plural ostia) in anatomy is a small opening or orifice.

Ostium or ostia may refer to:

Human anatomy

In other animals

  • Ostium (sponges), the pores of living sponges
  • Ostia of female lepidoptera genitalia

See also

  • All pages with titles containing Ostium
  • Pore (disambiguation)
  • Foramen
  • Ostiole
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