Eye and orbit

Question 1

supra orbital margin is made from

Answer 1

supraorbital notch of the frontal bone

Question 2

infroorbital margin made up of (2)

Answer 2

zygomatic bone laterally and maxilla medially

Question 3

orbit roof bony features (2)

Answer 3

frontal bone and lesser wing of sphenoid

Question 4

orbit floor bony features (3)

Answer 4

maxilla, zygomatic, palatine

Question 5

orbit lateral wall bony features (2)

Answer 5

zygomatic and greater wing of sphenoid

Question 6

orbit medial wall bony features (4)

Answer 6

maxilla, lacrimal, ethmoid, sphenoid body

Question 7

bony features frontal/lateral view (15)

Answer 7

superior orbital fissure, orbital surface of lesser wing of sphenoid, optic canal/foramen, orbital surface of frontal bone, posterior ethmoidal foramen, anterior ethmoidal foramen, orbital plate of the ethmoid bone, lacrimal bone, fossa of lacrimal sac, orbital surface of maxilla, orbital process of palatine bone, infraorbital groove, inferior orbital fissure, orbital surface of zygomatic bone, orbital surface of greater wing of sphenoid

Question 8

what nerve is in the optic canal

Answer 8

optic nerve CNII

Question 9

what nerves are in the supraorbital fissure (4)

Answer 9

CNIII occulomotor, CNIV trochlear, CNVI abducens, CNV trigeminal

Question 10

layers of the eye (3)

Answer 10

outer coat, middle coat, inner coat

Question 11

outer coat is formed of (2)

Answer 11

cornea and sclera

Question 12

outer coat function (2)

Answer 12

strength and transparency

Question 13

middle coat is formed of

Answer 13

uvea

Question 14

middle coat function

Answer 14

nutrition

Question 15

inner coat is formed of

Answer 15

retina

Question 16

inner coat function

Answer 16

vision

Question 17

parts of the eyeball (11)

Answer 17

retina, fovea, optic nerve, sclera, vitreous humor, ciliary muscle, aqueous humor, cornea, lens, iris, zonule fibres

Question 18

what strengthens the cornea and sclera

Answer 18

cartilage strands

Question 19

sclera cartilage patterns

Answer 19

whirlpools

Question 20

cornea cartilage patterns

Answer 20

lamellae changing directions

Question 21

network of blood vessels pigmented layer

Answer 21

choroid

Question 22

what makes aqueous humour

Answer 22

ciliary epthelial cells

Question 23

what does aqueous humour do (3)

Answer 23

nutrition, cornea and lens health, intraocular pressure

Question 24

what accommodates focusing (2)

Answer 24

ligaments attached to ciliary processes and contracting ciliary muscles

Question 25

ciliary muscle contraction helps with

Answer 25

focusing close

Question 26

features of the retina (3)

Answer 26

optic nerve, macula, fovea

Question 27

if eye tracts medially could be due to weakness in which muscle

Answer 27

lateral rectus

Question 28

extraocular muscles

Answer 28

superior rectus, inferior rectus, medial rectus, lateral rectus, inferior oblique, superior oblique

Question 29

what line do the rectus muscles stay in line with

Answer 29

equator

Question 30

superior rectus does what eye movement

Answer 30

elevation

Question 31

inferior rectus does what eye movement

Answer 31

depression

Question 32

medial rectus does what eye movement

Answer 32

adduction

Question 33

lateral rectus does what eye movement

Answer 33

abduction