Barrier

A barrier or barricade is a physical structure which blocks or impedes something.

Barrier may also refer to:

Places

Biology

  • Blood-brain barrier, a biological barrier that prevents entry of harmful substances into the brain by selectively allowing some substances to pass through it
  • Blood-testis barrier, the biological barrier between blood and testes
  • Blood-placental barrier, the biological barrier between a pregnant person's blood and foetal blood (blood of the baby or babies)
  • Blood-CSF barrier, the biological barrier between blood and cerebrospinal fluid (CSF; a.k.a. brain fluid)
  • Blood–spinal cord barrier, the biological barrier between blood and the spinal cord

In arts and entertainment

Film

Games

Music

Television

Other uses

See also

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