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28 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Which arteries supply the anterior eye and how are they divided |
Common carotid, divided: external (structures outside skull and majority of face) Internal (structures inside skull inc brain and eye) |
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Why are blockages more likely in the internal carotid arteries |
Because they twist and turn |
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Which 3 branches of external carotid arteries supply the face |
1. Facial 2. Maxillary 3. Superficial temporal
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What are the 3 branches of the maxillary artery |
Infraorbital, buccal, mental |
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Which branch of the maxillary artery supplies the lower lid |
Infraorbital |
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Where does the ophthalmic artery originate |
Above the cavernous sinus |
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Which branches of the ophthalmic artery supply the anterior eye? |
Long posterior ciliary arteries(travel between sclera and choroid) Lacrimal arteries(lacrimal gland, lids, conjunctiva) Muscular arteries(extraocular muscles and levator) Supra orbital arteries Medial palpebral arteries(lids) Dorsal nasal artery(lacrimal sac) |
There are 6 |
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Which 3 structures does the lacrimal artery supply? |
Lacrimal gland Lids Conjunctiva |
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Which muscles are supplied by the inferior branch of the muscular artery |
Medial rectus Inferior rectus Inferior oblique |
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Which muscles are supplied by the superior branch of the muscular arteries |
Lateral rectus Superior rectus Superior oblique Levator |
4 muscles |
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Which arteries do the anterior ciliary arteries originate from? |
muscular |
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Anterior ciliary arteries are an important blood supply to which 3 structures |
Iris conjunctiva and Sclera |
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Which arteries do the anterior ciliary arteries anastomose with, along with the major circle of the iris in the ciliary body? |
Long posterior ciliary arteries |
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The supra orbital artery often divides into 2, to supply which two external structures? |
Scalp and forehead |
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The supra orbital artery sends branches to which muscles |
Superior rectus, superior oblique, levator |
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The medial palpebral arteries supply which anterior structure? |
Lids - superior arch for upper and inferior arch for lower |
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Medial palpebral artistes anastomose with which artery branches to form the marginal and periphery arcades? |
Lacrimal arteries |
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Which artery is the terminal branch of the ophthalmic artery |
Dorsal nasal artery |
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Dorsal nasal artery sends vessels to supply which structure? |
Lacrimal sac |
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Where does the dorsal nasal artery leave the orbit? |
Pierces orbital septum below trochlear |
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Which 2 arteries supply the lacrimal gland |
Dorsal nasal Lacrimal |
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Where do the eyelids receive their blood supply from? |
Palpebral arcades which originate from the medial palpebral arteries |
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The major circle of the iris is supplied by anastomoses of which arteries? |
Long ciliary arteries Anterior ciliary arteries |
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The orbicularis muscle receives its blood supply from which source |
Supra orbital artery |
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The cornea and conjunctiva receive their blood supply from which 2 arteries? |
Lacrimal Anterior ciliary |
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The iris receives its blood supply from which arteries |
Long posterior ciliary Anterior ciliary |
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What are the two veins the anterior structures drain via, and where do they lead to? |
Large superior and inferior ophthalmic vein. Drain to cavernous sinus |
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How many Vortex veins are there usually and where do they leave the eye? What do they drain? |
1. 4-5 2. 6mm posterior to equator 3. Choroid |
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