Occular blood circulation Flashcards
What does the common carotid artery split into
Internal and external carotid artery
What is the first major branch of the internal carotid artery
Ophthalmic artery
Which artery is the main arterial supply to the eye
Ophthalmic artery
What are the 10 branches of the ophthalmic artery
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
What does the central retinal artery supply
Supply optic nerve, before divding into superior, inferior branches
nasal and temporal branches after optic disc, nourshing the retina
Which artery is a end artery and what happens if this artery is blocked
Central retinal artery
Blockage results in irreversible blindless
What does the lacrimal artery supply
Lacrimal gland
Conjunctiva and eyelids (lateral palpebral branch)
Which artery is the recurrent meningeal artery a branch of and what does it anastomose with
Branch of lacrimal lartery that anastomoses with midle meningeal artery (branch of external carotid artery)
What does the muscular arteries supply
The EOM
Inferior branch goes to: IR, MR, IO
Superior branch supplies: LR, SR, SO and leveator palpebrae superioris
What does muscular arteries pass forward to become
Anterior ciliary arteries
What are the three groups of ciliary arteries
Long posterior
Short posteirior
Anterior
What does the long posterior ciliary artery supply
Ciliary body and iris (pass thr scerla and joins anterior ciliary arteries)
How many long posterior ciliary arteries are there
2
What does short posterior ciliary arteries suppy
Choroid and choriocpaillaris (posteiror arterial circle of Zinn-Haller)
How many short posterior ciliary arteries are there
7
What does anterior ciliary arteries supply
Sclera, conjunctiva, ciliary body and iris (joints long posterior cliary arteries)
What does the supraorbital artery supply
Levator palpebrae superioris
SR
SO
before learving the supraorbital notch and supplying the
- Frontalis muscle and upper lids
what does the ethmoidal arteries supply
Anterior ethmoidal arteries:
ethmoidal and frontal sinuses and nasal cavity
Posterior ethmoidal arteries:
Ethomidal and spehnoid sinuses and nasal cavity
what does the medial palpebral arteries supply
Eyelids
What does the supratrochlear arteries supply
Supply the skin of forehead and scalp
What does the dorsal nasal artery supply
supplies skin of nose and lacrimal sac
What are the vessels braching from the external carotid artery
Facial
Superfical temporal
Maxillary
What does the facial artery supply
Medial canthus, lacrimal sac, lower lid and skin of cheeck
What does the facial artery anastomoses with
Infraorbital and dorsal nasal artery
What does the superfical temporal artery supply
Anterior temporal artery
- skin n muscle of forehead
Zygomatic artery
- orbicularis muscle
Transverse facial artery
- skin of cheek
What does the branches of superfical temporal artery anastomsose with
Anterior temporal artery anastomoses with Supraorbital and supratrochlear arteries
Transverse facial artery anastomoses with infraorbital artery
What does the maxillary artery supply
Lacrimal saac
Lower eyelid
IO
IR
What does the maxillary artery anastomses with
Angular artery and dorsal nasal artery
What is the vein that drains the blood and where will they drain into
Superior and inferior ophthalmic veins drain into cavernous sinus
What veins do the superior ophthalmic vein join and what vein does it communicate with
Joined by supraorbital vein and facial vein
Communicate with cnteral retinal vein
What veins communicates with the inferior ophthalmic vein
Facial vein and pterygoid venous plexus(drains our through the maxillary vein)
Where does inferior opthalmic vein drain into
Cavernous sinus or pterygoid venous plexus
