eye muscles

What are the 2 pneumonic devices for the extra ocular muscles?

LR6 SO4

what is the name of the muscle crossed out in black? Innervation? What is its function?

Lateral rectus, CN 6, abducts aka looks straight out

what is the name of the muscle crossed out in purple? Innervation? What is its function?

Superior rectus, CN 3, it elevates and adducs aka loops straight up

what is the name of the muscle crossed out in yellow? Innervation? What is its function?

superior oblique, CN 4, down and in (difficulty with stairs)

what is the name of the muscle crossed out in blue? Innervation? What is its function?

Medial rectus. Adducts aka looks in, CN 3

what is the name of the muscle crossed out in green? Innervation? What is its function? Clinical significance?

inferior rectus, looks down, CN3, this is where blowout fracture/rectus entrapment occurs

what is the name of the muscle crossed out in red? Innervation? What is its function?

Looks up and out, CN 3, inferior oblique

What is the figure in green? Innervation? Function?

This is the lavatory pulpebrae which opens the upper eyelid, innervated by CN 3

What is the lacrimal apparatus?

System for tear production and drainage

What is the lacrimal gland?

Creates tears, located in the upper lateral orbit, secretion via CN 7 but SENSATION via V1

What does nasolacrimal duct blockage cause?

Epiphora aka increased tearing

What is the opthalmic artery?

The opthalmic artery is a branch of the internal carotid artery, provides blood to the orbit

Central retinal artery

Pierces the optic nevre, occlusion would cause painless vision loss

What does the posterior ciliary artery supply blood to?

Outer retina