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Visual System Anatomy > Ocular Circulation > Flashcards

Flashcards in Ocular Circulation Deck (128)
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1

where does the cav sin extend from

superior orbital fissure to the petrous portion of the temporal bone

2

where does the dorsonasal artery exit

orbital septum

3

Parotid lymph nodes
Drains:

Lateral aspect of the lids, lateral canthus, lacrimal gland

4

what does the circle of zinn do

encircles the ON at the choroid (pial vessels anastomose as well)

-zinn might not be complete

5

what is the terminal branch to the medial canthus is called

angular artery

6

what is the CRA surrounded by

sympathetic nerve plexus

7

where does the facial artery branch

at the angle of the mandible

8

what does the maxillary artery pass through

infratemporal fossa and then move upwards towards the maxillary bone

9

what do the common carotid artery branch into

internal + external

10

what runs superior to the EOMs

supraorbital artery

11

what is the superior ophthalmic vein formed by

formed by the joining of the angular vein and supraorbital vein

12

what does the supratrochlear profuse

forehead skin, scalp and muscles of the forehead

13

what does the CRV drain

blood from the retina

14

lymphatic drainage - are there lymph vessels in the globe

no

15

what does the dorsonasal artery supply

lacrimal sac

16

retinal blood flow

autoregulated, low blood flow, CRA profuses the inner retina

17

what are the terminal branches of the ophthalmic artert

supratrochlear + dorsonasal arteries

18

branches of the lacrimal artery

-recurrent meningeal artery: passes back into the cranium
-Zygomaticofacial artery
-Zygomaticotemporal artery
-Lateral palpebral arteries: superior and inferior

19

what does the long posterior ciliary arteries supply

supply the uvea including the major circle of the iris

20

what does the supraorbital artery exit through

supraorbital notch/ foramen

21

what does the inferior ophthalmic vein drain

blood from the inferior and lateral EOMs, lacrimal sac

22

what is a branch of the cilioretinal artery

a branch of the short posterior ciliary artery

23

what do the medial palpebral artery branch from

ophthalmic artery or the dorsonasal artery

24

anterior ciliary arteries supply

rectus muscles

25

what are the branches are the superficial temporal artery

anterior temporal artery, zygomatic artery, transervse facial artery

26

what provides small branches to the ON and pia mater

CRA

27

the lacrimal artery runs parallel to the ____ along the top of the ___

the lacrimal artery runs parallel to the lacrimal nerve along the top of the LR

28

what are the branches of the external carotid artery

facial, maxillary, superficial temporal artery

29

what does the anterior ciliary veins drain

blood from the conj capillaries

30

what does the internal carotid enter the skull through

carotid artery