Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy > Eye > Flashcards

Eye Flashcards

1
Q

Name the 6 bones which make up the bony orbit and what they form - roof? floor? medial wall? lateral wall? apex?

A

Roof - Frontal
Floor - Maxillary
Medial wall - Maxillary, Lacrimal and Ethmoid
Lateral wall - Zygomatic and Greater Sphenoid
Apex - Lesser Sphenoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name the 3 main foramina of the orbit?

A

Optic foramen
Superior orbital fissure
Inferior orbital fissure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Nerve which passes via the optic foramen?

A

Optic nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Nerves which pass via the SOF?

A

III, IV and VI and V1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Nerve which passes via the IOF

A

V2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name the 10 main constituents of the eyeball?

A 
Cornea
Aqueous humour
Iris
Ciliary body
Lens
Vitreous humour
Optic nerve
Retina
Choroid
Sclera
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Name the 3 constituents of the fibrous coat of the eyeball?

A

Cornea
Aqueous humour
Sclera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name the 3 constituents of the vascular coat of the eyeball?

A

Iris
Ciliary body
Choroid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Name the 3 constituents of the sensory coat of the eyeball?

A

Retina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Cornea - function?

A

Transparent allowing light rays into eyeball

Also the refractive medium of the eye (2/3 power)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Sclera - function?

A

Opaque, giving attachment to muscles moving the eyeball

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Ciliary body - function?

A

Suspends the lens and produces AH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Iris - fucntion?

A

Controls the diameter of the pupil and therefore controlling the # of light rays enetring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Choroid - function?

A

Supplies blood to outer layers of retina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Retina - function?

A

Light sensitive rods and cones enabling us to see

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Physiological blind spot?

A

Optic disc start of optic nerve

17
Q

Macula lutea - content?

A

Fovea centralis packed with cones

18
Q

Lens - function? lens suspension?

A

Transparent and avascular

suspensory ligaments from the ciliary body

19
Q

Aqueous humour - definition? function? produced by? drained by? glaucoma?

A

Watery fluid
Intraocular pressure
Ciliary body
Trabecular meshwork of the anterior chambre
Obstruction of pathway, increased AH, increased PA

20
Q

Vitreous humour - definition? function?

A

Transparent gel

Cushion the retina

21
Q

Conjunctiva - definition? anatomy (4)

A

Thin vascular membrane covers inner surface of eyelid and loops back over sclera (not cover cornea)
Inferior and superior fornix
Palpebral conjunctiva
Ocular conjunctiva

22
Q

Lacrimal gland - located? innervation? duct opening? tear function? tear drainage?

A

Above the eye
Facial nerve
During each blink, eyelid spreads tears evenly over surface of cornea
Drainage through punctae into lacrimal sac (over lacrimal bone) into the nasolacrimal duct into the inferior meatus of the nasal cavity

23
Q

Name the 2 constrictor and 1 dilator muscle of the eye (intrinsic) - innevrations?

A

Constrictor:
- Ciliaris muscle and constrictor pupillae by parasympth (III)
Dilator:
- dilator pupillae by sympathetic plexus

24
Q

Name the 6 muscles which move the eye (extrinsic)?

A 
Medial rectus
Lateral rectus
Superior rectus
Inferior rectus
Superior oblique
Inferior oblique
25
Q

Recti - action?

A

M - adduct
L - abduct
S - elevate
I - depress

26
Q

Oblique - action?

A

S - intorsion

I - extorsion

27
Q

Superior oblque - innervation?

A

IV

SO4 (Schalke)

28
Q

Lateral rectus - innveration?

A

VI

LR6 (molar)

29
Q

All other muscles - innervation?

A

III

30
Q

Branches of the ophthalmic division of trigeminal nerve - nasociliary? lacrimal? frontal?

A

Nasociliary nerve:
- medial orbit, ethmoid sinus and nasal cavity
Lacrimal:
- supplies orbit and lacrimal gland
Frontal:
- divides into supraorbital and supratrochlear

31
Q

Optic tract synpase at?

A

Lateral geniculate body of the thalamus

32
Q

From the LGB to synapse at the?

A

Passes the internal capsule to the primary visual cortex n the occipital lobe

Anatomy (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions