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OPT 532 > Ocular Circulation > Flashcards

Ocular Circulation Flashcards

1
Q

The ophthalmic artery is a branch of the internal carotid artery. Which arteries are direct branches of the ophthalmic artery?

A 
Central retinal artery
Lacrimal artery
Long posterior arteries (2)
Short posterior arteries (10-20)
Muscular arteries
Supraorbital artery
Posterior ethmoid artery
Anterior ethmoid artery
**Medial palpebral artery
Supratrochlear artery
Dorsonasal artery

**Medial palpebral artery could branch from dorsonasal artery

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2
Q

Which arteries are direct branches of the lacrimal artery?

A

Recurrent meningeal artery
Zygomaticofacial artery
Zygomaticotemporal artery
Lateral palpebral artery

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3
Q

Which arteries are direct branches of the muscular arteries?

A

Lateral (superior) muscular artery
Medial (inferior) muscular artery
Anterior ciliary arteries (but only from vessels supplying the rectus muscles)

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4
Q

Which arteries are direct branches of the medial palpebral artery?

A

Superior medial palpebral artery

Inferior medial palpebral artery

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5
Q

Which arteries are direct branches of the lateral palpebral artery?

A

Superior lateral palpebral artery

Inferior lateral palpebral artery

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6
Q

What is the name of the anastomosis formed from the short posterior ciliary arteries?

A

Circle of Zinn (Haller)

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7
Q

Where does the cilioretinal artery branch from?

A

It can branch from the short posterior ciliaries or the Circle of Zinn

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8
Q

What is the name of the anastomosis formed from the long posterior ciliary arteries and the anterior ciliary arteries?

A

Major circle of the iris

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9
Q

What is the name of the anastomosis formed from the lateral palpebral arteries and the medial palpebral arteries?

A

Palpebral arcades (two in each eyelid, a marginal and a peripheral)

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10
Q

Which arteries are direct branches of the external carotid artery?

A

Facial artery
Superficial temporal artery
Maxillary artery
Middle meningeal artery

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11
Q

Which arteries are direct branches of the facial artery?

A

Angular artery

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12
Q

Which arteries are direct branches of the superficial temporal artery?

A

Transverse facial artery
Anterior temporal artery
Zygomatic artery

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13
Q

Which arteries are direct branches of the maxillary artery?

A

Infraorbital artery

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14
Q

The infraorbital artery forms an anastomosis with which other artery or arteries to supply the lower lid, nose, and cheek?

A

Dorsonasal artery

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15
Q

The anterior temporal artery forms an anastomosis with which other artery or arteries to supply the forehead?

A

Supratrochlear artery

Supraorbital artery

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16
Q

The middle meningeal artery forms an anastomosis with which other artery or arteries?

A

Recurrent meningeal artery

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17
Q

What structure(s) is/are supplied by the central retinal artery?

A

Inner retina

18
Q

What structure(s) is/are supplied directly by the short posterior ciliary arteries?

A

Choroid

19
Q

What structure(s) is/are supplied by the Circle of Zinn?

A

Optic nerve head

20
Q

What structure(s) is/are supplied by the major circle of the iris?

A

Iris

Ciliary body

21
Q

What structure(s) is/are supplied directly by the lateral/superior muscular artery?

A

LR, SR, SO, levator

22
Q

What structure(s) is/are supplied directly by the medial/inferior muscular artery?

A

MR, IR, IO

23
Q

What structure(s) is/are supplied directly by the anterior ciliary arteries?

A

Episclera

Conjunctiva

24
Q

What structure(s) is/are supplied by the posterior ethmoid artery?

A

Ethmoid sinus
Sphenoid sinus
Nasal cavity

25
Q

What structure(s) is/are supplied by the anterior ethmoid artery?

A

Ethmoid sinus
Frontal sinus
Nasal cavity

26
Q

What structure(s) is/are supplied by the palpebral arcades?

A

Eyelids

27
Q

What structure(s) is/are supplied by the lacrimal artery?

A

Lacrimal gland

28
Q

What structure(s) is/are supplied by the supraorbital artery?

A

SR, SO, levator
Orbicularis
Forehead

29
Q

What structure(s) is/are supplied by the supratrochlear artery?

A

Forehead

30
Q

What structure(s) is/are supplied by the dorsonasal artery?

A

Low lid, nose, and cheek

Lacrimal sac

31
Q

What structure(s) is/are supplied by the angular artery?

A

Lacrimal sac

32
Q

What structure(s) is/are supplied by the infraorbital artery?

A

IR, IO

33
Q

What structure(s) is/are supplied by the zygomatic artery?

A

Orbicularis

34
Q

The superior ophthalmic vein is formed by the joining of which two veins?

A

Angular vein

Supraorbital vein

35
Q

Which veins drain into the superior ophthalmic vein?

A 
Anterior ethmoid vein
Posterior ethmoid vein
Muscular veins from MR, SR, SO
Lacrimal vein
Superior vortex veins
**Central retinal vein (sometimes the central retinal vein drains directly into the cavernous sinus)
36
Q

Where does the central retinal vein drain?

A

Either into the superior ophthalmic vein or the cavernous sinus

37
Q

Which veins drain into the inferior ophthalmic vein?

A

Muscular veins from IR, IO, LR

Inferior vortex veins

38
Q

Where does the inferior ophthalmic vein drain?

A

It may form two branches: one that drains into the superior ophthalmic vein or the cavernous sinus; one that drains into the pterygoid venous plexus

39
Q

Where does does the infraorbital vein drain?

A

Pterygoid venous plexus

40
Q

The submandibular lymph nodes drain which structures?

A

Medial aspects of the eyelids; medial canthal structures (including lacrimal sac)

41
Q

The parotid lymph nodes drain which structures?

A

Lateral eyelids; lacrimal gland

42
Q

The parotid lymph nodes are also known by what name?

A

Preauricular lymph nodes

OPT 532 (11 decks)

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