Anatomy of the orbit (bones/bony features, nerves, extraocular muscles, vasculature,structure of eye)

lacrimal bone

nasolacrimal canal

ethmoid bone

anterior and posterior ethmoid foramina

zygomatic

greater wing of sphenoid bone

frontal orbital plate

maxilla

infraorbital canal

lesser wing of sphenoid bone

inferior orbital fissure

Maxillary division (V2) of the trigeminal nerve, zygomatic nerve and blood vessels

optic canal

optic nerve and ophthalmic artery

superior orbital fissure

supraorbital foramen

supraorbital nerve, artery, vein

sclera

white of the eye

cornea

iris

pupil

the adjustable opening in the center of the eye through which light enters

medial commissure

Eyelids join together; inside of eye

lateral commissure

outer corner of eye

palpebral fissure

lacrimal lake

A triangular space at the medial angle of the eye where tears collect

lacrimal puncta

conjunctiva

superior oblique muscle

moves eye inferiorly and laterally

medial rectus

moves eye medially

lateral rectus

moves eye laterally

levator palpebrae superioris

elevates upper eyelid

superior rectus

elevates eye

frontal nerve

lacrimal nerve

8

opthalmic nerve

Branch of the fifth cranial nerve that supplies impulses to the skin of the forehead, upper eyelids, and interior portion of the scalp, orbit, eyeball, and nasal passage.

trochlear nerve

innervates superior oblique

abducens nerve

nerve

Nasociliary nerve

Opthalmic- V1 Trigeminal nerve, the branch responsible for:
Ethmoid nerves (nasal cavity)
Infratrochlear nerve (Skin at medial, inferior corner of the eye)

opthalmic artery

branch of the internal carotid artery that supplies blood to the eyeball

trochlea of eye

loop of connective tissue that the superior oblique muscle goes through

superior opthalmic vein

orbital vein, drains orbit nasofrontal

posterior ethmoidal nerve

B

anterior ethmoidal nerve

Innervates anterior ⅓ of nasal passage

ciliary ganglion

(highlighted area) Site of postganglionic nerve cells that elicits constriction of pupil