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In anatomy, the 'orbit' is the cavity or socket of the skull in which the eye and its appendages are situated.
It can also mean the skin which surrounds the eye of a bird.

Contents

Contents

Bones

Foramina and openings

Additional images

External links

Contents

★ Eyeball

★ Fascias: Orbital, Bulbar

★ Extraocular muscles

★ Nerves: cranial nerves II, III, IV, V, and VI

★ Blood vessels

★ Fat

★ lacrimal gland

Bones

In humans, seven bones make up the bony orbit:

★ Frontal bone (Pars orbitalis)

★ Zygomatic bone (Orbital process of the the zygomatic bone)

★ Maxillary bone (Orbital surface of the body of the maxilla)

★ Sphenoid bone (Orbital surface of greater wing of sphenoid bone)

★ Ethmoid bone (Lamina papyracea)

★ Palatine bone (Orbital process of palatine bone)

★ Lacrimal bone

Foramina and openings

#Optic foramen
#Superior orbital fissure
#Inferior orbital fissure
#Anterior ethmoid foramen
#Posterior ethmoidal foramen
#Infraorbital foramen
#Supraorbital foramen
#Naso-lacrimal canal opening
#Zygomatic orbital foramen

Additional images

External links

★ - "Arterial Supply, Orbit"

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★ Interactive tutorial at anatome.ncl.ac.uk