anatomy and physiology mcqs

Question #635

The inferior orbital fissure

The inferior orbital fissure is located in the orbit at the junction of the lateral wall and floor between the sphenoid and maxillary bones. It forms an important connection between the orbit and pterygopalatine fossa.

Structures that pass through the inferior orbital fissure include:

  • The maxillary nerve (zygomatic and infra-orbital branches)
  • Parasympathetic fibres from the pterygopalatine ganglion
  • Infra-orbital vein
  • Infra-orbital artery
  • Inferior ophthalmic vein (and a tribuitary that drains into the pterygoid venous plexus)

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