Orbital vascular 1 Flashcards
__________ artery is the main blood supply for the eye and orbit
Ophthalmic
Smooth muscle is what kind of nervous system?
autonomic
Is collagen more in veins or arteries?
Arteries, in tunica adventitia
Why are you most likely to see a bleed in the superior portion of the fundoscopic photo?
more arterio-venous crossings
What is a bunch of new vessels around the optic nerve? proliferative diabetic nephropathy.
Neovascularization
What is inside carotid sheath?
Common carotid artery
Internal carotid
Vagus nerve
Internal jugular
Ocular region has 2 branches what are they?
central retinal artery
ciliary arteries
What is the vascular layer of the eye, consists of Iris, ciliary body and coroid?
Uvea
Ciliary artery gives rise to _________________.
long and short ciliary arteries.
Medial and lateral long posterior ciliary arteries travel in what space to the front of the eye?
Supracoroidal space
How many long and short posterior ciliaries are there?
2 long posterior ciliaries 10-20 short posterior ciliaries.
True/False: Any time you have vessels coming in and out of the eye you have potential for metastasis.
True
Short posterior ciliary nerves supply what?
Coroid
True/False: coroidal vessels autonomic retinal vessels are not autonomic.
True
Muscular arteries go to the _______ muscles and branch into _______ ciliary arteries.
rectus
anterior
Each muscular branches into __ anterior ciliary arteries except the _______ rectus.
2
lateral
Lacrimal artery branches near optic canal, courses superior border of __________ muscle with lacrimal nerve and vein.
lateral rectus
Branches of the lacrimal artery?
Lateral palpebral
Zygomatic arteries
7 branches of extra orbital region?
Supraorbital Posterior ethmoidal Anterior ethmoidal Recurrent meningeal Medial palpebral Supratrochlear Dorsonasal
Supraorbital artery runs with what nerve?
Frontal nerve
This courses posterior through the superior orbital fissure to supply meninges in middle cranial fossa.
Recurrent meningeal
Supratrochlear artery pierces through skull ______ to supraorbital artery.
medial
Where does superior ophthalmic vein go?
Cavernous sinus
what makes up the Fibrous tunic?
Cornea and sclera
what makes up the vascular tunic?
uvea
What vessels are dilated when you see cavernous sinus fistula?
anterior ciliary veins
Facial vein ends in what vein?
angular vein
If lateral where does lymph drain?
PALN
Pre auricular lymph nodes
If medial where does lymph drain?
SLN
Submandibular lymph nodes
Lacrimal artery gives off a ________ branch and gives ___ anterior ciliary artery.
muscular
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