ORBIT (ANATOMY)

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