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Anatomy > Neuro Exam Orbit > Flashcards

Neuro Exam Orbit Flashcards

1
Q

Roof of orbit

A

orbital plate of frontal and lesser wing of spenoid

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2
Q

Floor of orbit

A

Orbital surface of maxilla, orbital surface of zygomatic, orbital process of palatine

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3
Q

medial wall of orbit

A

frontal process of maxilla, lacrimal, orbital plate of ethmoid

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4
Q

lateral wall of orbit

A

orbital surface of zygomatic, greater wing of sphenoid

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5
Q

Base of orbit

A

orbital margin-outline/surrounds the opening to the eye socket

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6
Q

Apex of the orbit

A

optic canal and foramen through the lesser wing of the spenoid

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7
Q

optic foramen or canal

A

optic nerve (CNII) and opthalmic artery

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8
Q

superior orbital fissure

A

occulomotor nerve (CNIII), trochlear nerve (CNIV), abducens nerve (CN VI), opthalmic division of trigeminal (V1), and superior opthalmic vein

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9
Q

inf orbital fissure

A

infraorbital NAV (nerve of maxillary division of trigeminal-CN V2) and inf. opthalmic vein

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10
Q

supraorbital foramen

A

sup. orbital NAV (nerve is of the opthalmic division of CNV, V1

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11
Q

infraorbital canal

A

the nerve runs through the infraorbital groove into the infraorbital canal and out the front of the face through the infraorbital foramen. Infraorbital NAV (nerve is max divisions of the trigeminal CN V2)

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12
Q

Ant. ethmoidal foramen

A

on the medial wall of orbit /sup border of ethmoid bone; ant. ethmoidal nerve (nasocilliary- branch of V1) runs through this foramen

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13
Q

Post ethmoidal foramen

A

medial wall of orbit/sup border of the orbital part of ethmoid- post ethmoidal nerve runs through (nasocilliary-branch of V1)

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14
Q

Canal for nasolacrimal duct

A

nasolacrimal sulcus/fossa

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15
Q

Zygomaticofacial foramen

A

Zygomaticofacial NAV–(considered with obital region due to the transmission of) zygotmatic nerve through the inferior orbital fissure into the orbital cavity and out the foramina.

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16
Q

Zygomaticotemporal foramen

A

Opposite the Zygomaticofacial foramen-

Considered with the orbital region-transmts zygomatical facial n. (of maxillary division V2)

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17
Q

CNII name and location

A

optic, behind the globe of the eye

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18
Q

CNIII

A

occulomotor- innervates every muscle except sup oblique and lateral rectus

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19
Q

Trochlear Nerve

A

CNIV; innervates sup oblique m.

20
Q

innervates sup. oblique m.

A

trochlear (CNIV)

21
Q

Abducens innervates

A

CNVI-innervates lateral rectus only

22
Q

innervates lateral rectus

A

Abducens (CNVI)

23
Q

Opthalmic Division of Trigeminal

A

V1- primary sensory nerve for face, sensory innervation from trigeminal to eye, through supraorbital fissure –> 3 branches

24
Q

primary sensory nerve of the face

A

Opthalmic Division of Trigeminal (V1)

25
Q

Frontal Nerve

A

branch of opthalmic (V1)-splits into supraorbital and supratrochlear n. which are sensory n. to scalp and upper eyelid)

26
Q

sensory to scaplp and upper eyelid

A

frontal nerve- specifically supraorbital and suprtrochlear n. branches

27
Q

lacrimal nerve

A

branch of V1; sensory into lacrimal gland, eye conjunctiva, and lateral upper eyelid

28
Q

nasocilliary neve

A

branch of V1-most of its branches travel medial (sideways) many branches

29
Q

branches of nasocilliary nerve

A 
4 (or 5)branches...
PAIL
-Post ethmoidal
-ant ethmoidal
-infratrochlear nerve
-long ciliary nerve
30
Q

ant. ethmoidal nerve

A

branch of nasocilliary; sensory info from ethmoidal air sinuses and outer nose

31
Q

post ethmoidal nerve

A

branch of nasocilliary (which is branch of V1)- sensory info from the ethmoidal air sinuses

32
Q

infratrochlear nerve

A

branch of nasocilliary-runs under hook-sensory at trochlea

33
Q

long cilliary nerve

A

branch of nasocilliary (branch of V1)- runs to back of eyeball and carries sensory info from the eyeball(as does short ciliary)

34
Q

carries sensory info from the eyeball

A

the long and short ciliary nerves which are branches of the nasocilliary nerve which is a branch of V1-opthalmic vein

35
Q

Ciliary ganglion location

A

located off the nasociliary nerve

36
Q

short ciliary nerves

A

run between ganglion and back of eye; contain sensory fibers which serve the eye

37
Q

long ciliary nerves

A

branches between the back of the eye and nasociliary nerve; sensory fibers innervating the eye and cornea

38
Q

Opthalmic artery goes through the

A

optic foramen/canal with the optic nerve

39
Q

branches of the opthalmic artery

A
  • Post. ethmoidal art.
  • Ant. ethmoidal art.
  • lacrimal artery-supraorbital artery
40
Q

inf and sup opthalmic veins drain here

A

cavernous sinus-linked to brain via vessels and can cause spread of infection

41
Q

Lacrimal gland location and function

A

in lacrimal fossa-produces tears

42
Q

puncta

A

small holes in medial aspect of the orbit where tears run into; if they cannot absorb = crying

43
Q

lacrimal gland canals

A

lead tears from puncta to nasolacrimal duct

44
Q

nasolacrimal duct empties into

A

nasal cavity

45
Q

Retrobulbar fat

A

fills all of the spaces between eye muscles, arteries, and nerves in order to protect from trauma

46
Q

infraorbital and zygomatic nerves are branches of the

A

maxillary nerve V2-enter via inf orbita fissure

Anatomy (13 decks)

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