CN V Ophthalmic N: Sensory

Question 1

The ophthalmic n passes through the cavernous sinus and inferior to what 2 nerves?

Answer 1

Oculomotor and trochlear

Question 2

It is joined by this network for the sympathetic nerves

Answer 2

Internal carotid plexus

Question 3

Ophthalmic communicates with these 3 nerves for proprioceptive sense

Answer 3

Oculomotor
Trochlear
Abducens

Question 4

Before the ophthalmic enters the orbit, it gives off this nerve

Answer 4

Tentorial (recurrent meningeal)

Question 5

The tentorial n adheres to what?

Answer 5

The trochlear n to the tentorium cerebelli

Question 6

What are the 4 branches of the ophthalmic n?

Answer 6

Tentorial
Lacrimal
Frontal
Nasociliary

Question 7

Before entering the superior orbital fissure, it divides into which 3 branches?

Answer 7

Lacrimal
Frontal
Nasociliary

Question 8

Which is the smallest branch of ophthalmic?

Answer 8

Lacrimal

Question 9

The lacrimal branch receives a branch from the zygomaticotemporal, which is a branch of what nerve?

Answer 9

Zygomatic nerve of the maxillary nerve

Question 10

The lacrimal nerve in conjunction with zygomaticotemporal is what modality?

Answer 10

Parasympathetic efferent nerve

Question 11

The lacrimal nerve innervates what?

Answer 11

Lacrimal gland and lateral side of the conjunctiva of the upper eye lid

Question 12

What is the largest branch of ophthalmic?

Answer 12

Frontal

Question 13

The frontal nerve enters the orbit and runs forward above what muscle?

Answer 13

Levator palpebra superioris

Question 14

Midway through the orbit, frontal n divides into what 2 nerves?

Answer 14

Supratrochlear and Supraorbital (larger of 2)

Question 15

The supratochlear n gives off a descending branch to what nerve?

Answer 15

Infratrochlear n of nasociliary n

Question 16

When the supratrochlear n emerges on the forehead, it sends fibers to what area?

Answer 16

Medial side of conjunctiva and skin of upper eyelid

Question 17

The supratrochlear nerve emerges on the face via what opening?

Answer 17

Frontal notch

Question 18

The supraorbital n emerges on the face via what opening?

Answer 18

Supraorbital notch

Question 19

The supraorbital n supplies what area?

Answer 19

Skin of the scalp up to the lambdoid suture and frontal sinus mucosa

Question 20

The nasociliary n gives off what 5 branches?

Answer 20

Anterior ethmoidal branch
Ganglionic
Long ciliary nerves
Infratrochlear nerve
Posterior ethmoidal

Question 21

After the anterior ethmoidal n descends on the side of the crista galli, it enters this cavity

Answer 21

Nasal cavity

Question 22

The medial internal nasal branch supplies what area?

Answer 22

Front part of the nasal septum

Question 23

The lateral internal nasal branch supplies what area?

Answer 23

Anterior part of the lateral wall of the nasal cavity

Question 24

The anterior ethmoidal n emerges as what nerve to supply the ala, apex, and nasal vestibule?

Answer 24

External nasal n

Question 25

The nasociliary n communicates with the ciliary ganglion through what branch?

Answer 25

Ganglionic branch

Question 26

This nerve runs between the sclera and choroid to distribute to the ciliary body, iris, and cornea

Answer 26

Long ciliary nerve

Question 27

The long ciliary n contains sympathetic fibers from where?

Answer 27

Internal carotid plexus

Question 28

The long ciliary n contains sensory fibers from where?

Answer 28

Nasociliary n

Question 29

What nerve supplies the medial side of the eyelids skin and side of nose, conjunctiva, lacrimal sac, and the lacrimal caruncle?

Answer 29

Infratrochlear n

Question 30

What n supplies the ethmoidal and sphenoidal sinuses?

Answer 30

Posterior ethmoidal n