Eye

Question 1

Name the 7 bones which form the orbit

Answer 1

Ethmoid
Frontal
Palatine
Sphenoid
Zygomatic
Maxilla
Larimal

Question 2

What passes through the Optic Foramen

Answer 2

Optic Nerve

Ophthalmic Artery

Question 3

What passes through superior orbital fissure

Answer 3

Abducens Nerve
Trochlear Nerve
Occculomotor Nerve
Ophthalmic of Cranial Nerve V
Ophthalmic Veins

Question 4

What passes through Inferior Orbital Fissure

Answer 4

Maxillary of Cranial Nerve V

Inferior Ophthalmic Vein

Question 5

Main contents of Orbit

Answer 5

Eye
Extrinsic Ocular Muscles
Ligaments
optic nerve
ophthalmic artery branches
Lacrimal apparatus
adipose fat

Question 6

What makes up the outer fibrous layer of the eye

Answer 6

Sclera and Cornea

Question 7

What makes up the middle vascular layer of eye

Answer 7

Choroid
Ciliary body
Iris

Question 8

what makes up the inner sensory layer of eye

Answer 8

Retina

Question 9

what is the name given to the watery fluid in anterior eye

Answer 9

Aqueous Humour

Question 10

what is name given to gel in posterior segment of eye

Answer 10

vitreous humour

Question 11

Name the three intrinsic muscles of eye

Answer 11

Ciliaris
Sphincter Pupillae
Dilator Pupillae

Question 12

Location, Action and Innervation of Ciliaris

Answer 12

Vascular layer around Iris
Accomodation
Parasympathetic

Question 13

Location, Action and Innervation of Sphincter Pupillae

Answer 13

Pupillary border of of Iris
Narrows Pupil
Parasympathetic

Question 14

Location, Action and Innervation of Dilator papillae

Answer 14

Outer to inner border of iris
Widens Pupil
Sympathetic

Question 15

Eye movements are produced by

Answer 15

Extrinsic muscles of Eye

Question 16

when the top of the eye is rotated towards the nose it is called

Answer 16

Intortion

Question 17

When the top of the eye is rotated away from nose is it is called

Answer 17

Extortion

Question 18

How many eye muscles are recti

Answer 18

Four

Question 19

In addition the elevator of the upper eyelid is also considered as an extrinsic eye muscle even though it has no action on the eyeball itself.
What is this muscles known as?

Answer 19

Levator Palpebrae Superioris

Question 20

What innervates Levator Palpebrae Superioris

Answer 20

Occulomotor Nerve

Question 21

Medial rectus of eye function

Answer 21

Adducts Eyeball

Question 22

lateral rectus of eye function

Answer 22

Abducts Eyeball

Question 23

inferior rectus of eye function

Answer 23

Depression
Intortion
Extrosion

Question 24

Superior oblique of eye function

Answer 24

Depression
Intortsion
Elevation

Question 25

Inferior oblique of eye function

Answer 25

Depression
Adduction
Lat Rotation

Question 26

Which is the only muscle that does not arise from the posterior aspect of the orbit?

Answer 26

Inferior oblique

Question 27

What is the function of the suspensory ligament of the eye?

Answer 27

resist posterior pull of recti

Question 28

Name the branch of the internal carotid artery that supplies the orbit and the eye.

Answer 28

ophthalmic artery

Question 29

Which foramina in the orbit do the ophthalmic veins pass through to enter into the cavernous venous sinus in the cranial cavity?

Answer 29

superior orbital fissure

Question 30

Are there any lymphatics in orbit

Answer 30

No

Question 31

In which part of the orbit does lacrimal apparatus structure lie, medial or lateral?

Answer 31

Lateral

Question 32

From which cranial nerve does parasympathetic innervation to lacrimal apparatus arise

Answer 32

CN VII

Question 33

Into which meatus of the nasal cavity does lacrimal apparatus drain (via the nasolacrimal duct)

Answer 33

inferior nasal meatus