Ongoing look ups

Question 1

orbital septum location

Answer 1

within the middle lamella (orbital septum and tarsal plate)
*extension of the orbit periosteum and acts as an anterior boundary of the orbit

between orbicularis oculi muscle and the tarsal plate – tarsal plate – conjuctiva

septum attaches to tarsal plate – gives eyelid its shape

Question 2

**inferior attachement of the orbital septum

Answer 2

arcus marginalis
*confluence of the orbital septum and periosteum

periosteal thickening

Question 3

*very general idea of what the orbital septum is

Answer 3

extension of the orbit periosteum and act as the anterior boundary of the orbit

just posterior to the orbicularis oculi, it helps restrict the extracoronal fat within the orbit

tissues anterior to septum = part of eyelids

tissues posterior to septum = orbit

Question 4

inferior orbital fissure
landmark that separates ?
permits passage of?

Answer 4

separates the lateral wall of the orbit from the floor

permits
1. maxillary division of CNV (V2)
2. infraorbital artery
3. Branches of sphenopalatine ganglion
4. branches of the inferior ophthalmic vein to the pterygoid plexus

Question 5

infraorbital nerve is a branch of?

Answer 5

maxillary nerve (V2 of trigemninal)

Question 6

infraorbital nerve gives off?

Answer 6

missle superior alveolar nerve

anteiror superior alveolar nerve

Question 7

main 3 branches of maxillary nerve

Answer 7

meningeal branch (before foramen rotundum)

within oterygopalatine fossa gives off
nasopalatine nerve
greater palatine nerve
lesser palatine nerve
pharyngela nerve

• zygomatic nerve
  -posterior superior alveolar nerve
• senssory root of pterygopalatine ganglion

orbit portion
- infraorbital nerve –> gives off middle superior alveolar nerve and anterior superior alveolar nerve

then finally exits infraorbital foramen –>

Question 8

maxillary nerve gives off what within the pteygopalantine fossa– where??

Answer 8

**through infraorbital fissure!
ZYGOMATIC NERVE

zygomaticotemporal nervce

zygomaticofacial nerve

Question 9

infraorbital nerve gives rise to

Answer 9

middle suprerior alveolar nerve

anterior superior alveolar nerve

Question 10

tarsal plate

Answer 10

dense fibro elestic connective tissue that stabalizes and supports the lid