Eye Structure I
What is the optic canal
What are the fibrous, muscular/vascular, and sensory layers
Muscle that abducts the eye
What is the lateral rectus
Special sensory innervation from the retina to the brain
What is the optic nerve
What is the optic nerve
Modified sebaceous glands that secrete an oily substance to increase the viscosity of tears and decrease evaporation
What is the meibomian gland
Two structures making up the fibrous layer
What are the sclera and cornea
Muscle that adducts the eye
What is the medial rectus
Innervates the superior oblique
What is the trochlear nerve
Fibers that synapse in the lateral geniculate body of the thalamus continue on to the visual cortex by this structure
What is the optic radiation
Openings that drain tear fluid from the eye
What are the inferior and superior puncta of the lacrimal apparatus
Parts of the uveal tract
What are the choroid, ciliary body, and the iris
Muscle that depresses and adducts the eye
What is the inferior rectus
Cranial nerve that innervates the lateral rectus
What is the abducen nerve
Information from the nasal retina cross over to the contralateral side at this structure.
What is the optic chiasm
What is the limbus
The function of the fovea centralis
What is responsible for high acuity color vision due to high concentration of cones
Muscle that elevates and abducts the eye
What is the inferior oblique
Cranial nerve that provides visceral motor-parasympathetic innervation to the lacrimal gland
What is the facial nerve
A lesion at this area along the visual field pathway will cause homonymous hemianopia (complete loss of vision in the inner half of one eye and the outer of the other)
What is the optic tract or optic radiation
Structure that absorbs aqueous humor
What is the Canal of Schlemm aka Scleral Venous Sinus
Gel like substance responsible for keeping the eye from collapsing
What is the vitreous humor
Muscle that causes the eye to look down and out
What is the superior oblique
Cranial nerve responsible for lens accommodation
What is the oculomotor nerve
A lesion in this area of the visual field pathway will cause heteronymous hemianopia (complete loss of vision in the outer half of each eye)
What is the optic chiasm