Eye Anatomy Quizizz

Ethmoid, frontal, lacrimal, sphenoid

Which bones make up the medial wall of the bony orbit?

Limbus

What is the term for the site where the sclera merges with the cornea?

nasolacrimal duct

Where do tears pass after entering the lacrimal sac?

Sclera

What is the thick, white, outermost layer of the eye?

Superior Orbital Fissure

The superior/inferior branches of the oculomotor nerve, Trochlear nerve, Abducens nerve, branches of the ophthalmic nerve (V1), and superior ophthalmic vein pass through what to enter the orbit?

Frontal, lesser wing of sphenoid

What bones form the superior wall of the bony orbit?

Maxillary, zygomatic, palatine

What bones make up the inferior wall of the bony orbit?

Trigeminal (V), Facial (VII)

What cranial nerves are involved in the corneal reflex test?

Ophthalmic

Which branch of the trigeminal nerve provides sensory innervation to the upper/lateral eyelid, conjunctiva, and cornea?

Maxillary nerve (V2), inferior ophthalmic vein

Which of the following is found in the inferior orbital fissure?

Motor innervation

What is the role of the facial nerve in relation to the orbicularis oculi muscle?

A. Ciliary muscle

Parasympathetics traveling in the oculomotor nerve innervate the:

A. ciliary muscle

B. cornea

C. dilator pupillae

D. lacrimal gland

E. superior tarsal muscle

Move the eye down and out

What is the action of the superior oblique muscle when innervated by CN IV?

Zygomatic, greater wing of sphenoid

Which bones constitute the lateral wall of the bony orbit?

Sensory to th elower eyelid

What is the function of the maxillary branch of the trigeminal nerve?

Trochlear (CN IV)

Which cranial nerve innervates the superior oblique muscle?

Levator palpebrae superioris

A woman suffers a severe head injury. Upon exam you notice that she has ptosis on one side. This could be a result of loss of innervation to which muscle?

Optic nerve, ophthalmic artery

Which structures pass through the optic foramen?

Meibomian Gland

Which structure functions by secreting oily substance to increase viscosity of tears and decrease rate of evaporation?

Facial Nerve (CN VII)

Which nerve provides visceral motor-parasympathetic innervation to th elacrimal gland?

Lens accommodation

What is the role of the ciliary body as mentioned in the context of CN III?

Inferior nasal meatus

A provider places blue dye into the right eye to assess the patency of the tear duct system. Where should one look to see the eventual flow of the dye, assuming the lacrimal duct system is patent?

Optic nerve (afferent), oculomotor nerve (efferent)

What is the pupillary light reflex mediated by?

Down and out

If your patient had a lesion of the right oculomotor nerve, you would expect the right eye to be in which of the following positions?

CN III

The inferior rectus muscle is innervated by which cranial nerve?

Trochlear Nerve

Which of the following structures does not travel through the common tendinous ring?

• Abducens nerve

• Nasociliary nerve

• Oculomotor nerve

• Optic Nerve

• Trochlear nerve

Superior/inferior puncta

Through which structures does tear fluid drain medially?

Visual acuity, visual field

What parameters define legal blindness?

Elevates upper eyelid

What is the role of the levator palpebrae superioris and superior tarsal muscle?

CN V

A 45 y/o diabetic female has developed shingles involving the right cornea. Through which nerve did the varicella virus most likely travel to the cornea?