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Ocular anatomy > Occular blood circulation > Flashcards

Occular blood circulation Flashcards

1
Q

What does the common carotid artery split into

A

Internal and external carotid artery

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2
Q

What is the first major branch of the internal carotid artery

A

Ophthalmic artery

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3
Q

Which artery is the main arterial supply to the eye

A

Ophthalmic artery

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4
Q

What are the 10 branches of the ophthalmic artery

A

Central retinal artery

Lacrimal artery

Meningeal artery

Muscular arteries

Ciliary arteries

Supraorbital artery

Ethmoidal artery

Medial palpebral arteries

Supratrochlear arteries

Dorsal nasal artery

How to rmb: Claire lost many memes cause seeing ethmoid medially scared damyn

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5
Q

What does the central retinal artery supply

A

Supply optic nerve, before divding into superior, inferior branches
nasal and temporal branches after optic disc, nourshing the retina

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6
Q

Which artery is a end artery and what happens if this artery is blocked

A

Central retinal artery

Blockage results in irreversible blindless

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7
Q

What does the lacrimal artery supply

A

Lacrimal gland

Conjunctiva and eyelids (lateral palpebral branch)

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8
Q

Which artery is the recurrent meningeal artery a branch of and what does it anastomose with

A

Branch of lacrimal lartery that anastomoses with midle meningeal artery (branch of external carotid artery)

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9
Q

What does the muscular arteries supply

A

The EOM

Inferior branch goes to: IR, MR, IO

Superior branch supplies: LR, SR, SO and leveator palpebrae superioris

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10
Q

What does muscular arteries pass forward to become

A

Anterior ciliary arteries

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11
Q

What are the three groups of ciliary arteries

A

Long posterior

Short posteirior

Anterior

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12
Q

What does the long posterior ciliary artery supply

A

Ciliary body and iris (pass thr scerla and joins anterior ciliary arteries)

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13
Q

How many long posterior ciliary arteries are there

A

2

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14
Q

What does short posterior ciliary arteries suppy

A

Choroid and choriocpaillaris (posteiror arterial circle of Zinn-Haller)

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15
Q

How many short posterior ciliary arteries are there

A

7

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16
Q

What does anterior ciliary arteries supply

A

Sclera, conjunctiva, ciliary body and iris (joints long posterior cliary arteries)

17
Q

What does the supraorbital artery supply

A

Levator palpebrae superioris
SR
SO

before learving the supraorbital notch and supplying the
- Frontalis muscle and upper lids

18
Q

what does the ethmoidal arteries supply

A

Anterior ethmoidal arteries:
ethmoidal and frontal sinuses and nasal cavity

Posterior ethmoidal arteries:
Ethomidal and spehnoid sinuses and nasal cavity

19
Q

what does the medial palpebral arteries supply

A

Eyelids

20
Q

What does the supratrochlear arteries supply

A

Supply the skin of forehead and scalp

21
Q

What does the dorsal nasal artery supply

A

supplies skin of nose and lacrimal sac

22
Q

What are the vessels braching from the external carotid artery

A

Facial

Superfical temporal

Maxillary

23
Q

What does the facial artery supply

A

Medial canthus, lacrimal sac, lower lid and skin of cheeck

24
Q

What does the facial artery anastomoses with

A

Infraorbital and dorsal nasal artery

25
Q

What does the superfical temporal artery supply

A

Anterior temporal artery
- skin n muscle of forehead

Zygomatic artery
- orbicularis muscle

Transverse facial artery
- skin of cheek

26
Q

What does the branches of superfical temporal artery anastomsose with

A

Anterior temporal artery anastomoses with Supraorbital and supratrochlear arteries

Transverse facial artery anastomoses with infraorbital artery

27
Q

What does the maxillary artery supply

A

Lacrimal saac

Lower eyelid

IO

IR

28
Q

What does the maxillary artery anastomses with

A

Angular artery and dorsal nasal artery

29
Q

What is the vein that drains the blood and where will they drain into

A

Superior and inferior ophthalmic veins drain into cavernous sinus

30
Q

What veins do the superior ophthalmic vein join and what vein does it communicate with

A

Joined by supraorbital vein and facial vein

Communicate with cnteral retinal vein

31
Q

What veins communicates with the inferior ophthalmic vein

A

Facial vein and pterygoid venous plexus(drains our through the maxillary vein)

32
Q

Where does inferior opthalmic vein drain into

A

Cavernous sinus or pterygoid venous plexus

Ocular anatomy (15 decks)

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