The Eye and Orbit

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The temporomandibular joint | Main Anatomy Index | The nasal cavity

Last updated 30 March 2006

The Eye and Orbit


The Orbital Margin

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The Walls of the Orbit


The Superior Roof of the Orbit (p. 703)


The Medial Wall of the Orbit (p. 703)


The Inferior Wall of the Orbit (p. 703)


The Lateral Wall of the Orbit (pp. 703, 705)

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Muscles of the Orbit

Levator Palpebrae Superioris Muscles (p. 715)


Illnesses involving the Levator Palpebrae Superioris (p. 715)


The Rectus Muscles (p. 715)

Click here for a schematic of the attachment of the muscles to the eye.


The Oblique Muscles

The Superior Oblique Muscle (p. 715)


The Inferior Oblique Muscle (p. 715)


Nerve Supply of the Muscles of the Orbit (pp. 715-6)


Actions of the Muscles (pp. 716-7)

Muscle Action(s) on the Eyeball Nerve Supply
Medial Rectus Adducts CN III
Lateral Rectus Abducts CN VI
Superior Rectus Elevates, adducts, and medially rotates CN III
Inferior Rectus Depresses, adducts, and laterally rotates CN III
Superior Oblique Depresses, abducts, and medially rotates CN IV
Inferior Oblique Elevates, abducts, and laterally rotates CN III


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The Orbital Vessels


The Ophthalmic Artery (p. 716)


The Central Artery of the Retina (pp. 716-7)


The Ophthalmic Veins

The Superior Ophthalmic Vein (p. 719)


The Inferior Ophthalmic Vein (p. 719)


The Optic Nerve

Click here to go to the optic nerve entry in cranial nerves.

Click here for a diagram on entry of nerves of the orbit into the orbital cavity.

Click here for a diagram on the branches of the ophthalmic nerve (CN V1)

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Michael Tam (c) 1998