venous drainage of the eye and orbit

Question 1

list the components of the venous drainage system?

Answer 1

1. cavernous sinus
2. internal jugular
3. vertebral
4. external jugular

Question 2

venous drainage ultimately returns to the hear via the ____?

Answer 2

internal and external jugular veins

Question 3

what are the MAJOR veins draining the eye and the orbit?

Answer 3

1. superior ophthalmic vein (larger)
2. inferior ophthalmic vein (smaller)
3. infraorbital vein

Question 4

where does the superior ophthalmic vein originate, leave and anastomoses?

Answer 4

originate = near trochlea
leaves orbit thru the SOF (superior orbital tissue)
anastomoses= w/ angular vein, supra trochlear vein

Question 5

list veins that drain into the superior ophthalmic vein?

Answer 5

1. anterior ethmoidal vein
2. posterior ethmoidal vein
3. muscular veins/ Anterior ciliary veins
4. lacrimal veins
5. central vein
6. supraorbital veins
7. superior vortex veins (branch with diff name)
   “can Larry sing more pop songs and”

Question 6

what do anterior ciliary veins drains?

Answer 6

episclera, conjunctiva & anterior uvea

Question 6

what veins drain the choroid?

Answer 6

vortex veins

Question 7

what does the central retinal vein drain?

Answer 7

inner retina & optic nerve

Question 8

where does the central retinal vein emerge?

Answer 8

emerges from the meningeal sheath of the optic nerve

Question 9

what does the interior ophthalmic vein drain?

Answer 9

choroid, lower EOMs, lacrimal sac region, inferior conj

Question 10

where does the inferior ophthalmic vein originate and what is its branch?

Answer 10

originates from = antero-medial floor of orbit
branch = inferior vortex veins

Question 11

what does the infraorbital vein drain?

Answer 11

inferior orbit and the lower lid

Question 12

list the facial veins around the orbit?

Answer 12

• supratrochlear vein
• nasofrontal vein
• external nasal vein
• transverse facial vein
• facial vein
• angular vein
• superficial temporal vein

Question 13

what are the two veins that drain around the eyelid?

Answer 13

-superior palpebral vein
-inferior palpebral vein

Question 14

what are meninges?

Answer 14

the three membranes that envelop the brain and spinal cord
-dura mater
-arachnoid
-pia mater

Question 15

What is the dural venous sinuses?

Answer 15

-borders within the layers of the dura mater
- NO Valves can promote bidirectional flow of blood to neighboring structures allowing pathogens/neoplastics cells to travel to different parts of the brain
- drainage channel for cerebrospinal fluid and venous blood

Question 16

what is the cavernous sinus?

Answer 16

• an example of a dural venous sinus
• where important veins pass
• drains into the superior and inferior petrosal sinuses and internal jugular vein

Question 17

what does the cavernous sinus contain and what pathology is in this region?

Answer 17

• several cranial nerves, blood vessels, ICA, venous plexus
• vascular
  -infectious
  -inflammatory
• trauma
  -neoplastics

Question 18

what are the cavernous sinus communications?

Answer 18

-important pathway of communication between the orbit via the SOF , face and brain
- communications via the foramen rotundum and IOF with the pterygopalatine fossa