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Special Senses > Nerves > Flashcards

Nerves Flashcards

1
Q

striated part of L.P.S
smooth part of L.P.S

A

oculomotor
carotid nerve plexus

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2
Q

Injury to which part of the L.P.S causes Horner’s syndrome

A

smooth

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3
Q

lateral rectus

A

abducent 6

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4
Q

superior oblique

A

trochlear 4

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5
Q

extraocular muscles except lateral rectus + superior oblique

A

oculomotor 3

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6
Q

Motor Nerves of orbit

A

Oculomotor
Trochlear
Abducent

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7
Q

Sensory Nerves for General sensation

A

No Live Free
Branches of ophthalmic:
Lacrimal
Frontal
Nasociliary

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8
Q

Sensory Nerves for vision

A

Optic

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9
Q

Autonomic Nerves (Sympathetic) supply

A

Stop Doing Bad
-Superior tarsal muscle (of L.P.S.).
-Dilator pupillae
-Blood vessels of the eye ball.

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10
Q

Autonomic Nerves (Parasympathetic) supply

A

Ciliary muscle (oculomotor N.)
Constrictor pupillae (oculomotor N.)
Lacrimal gland (facial N.)

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11
Q

All motor and sensory nerves enter the orbit via the superior orbital fissure (SOF) except

A

optic

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12
Q

nerves pass through SOF outside the common tendinous ring,

A

lacrimal, frontal, trochlear

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13
Q

nerves pass through the SOF within the common tendinous ring

A

superior and inferior divisions of the oculomotor N.
nasociliary N. in-between
abducent N.

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14
Q

Nerve enters the orbit via the optic canal within the common tendinous ring

A

Optic

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15
Q

arrangement of all nerves entering SOF from above downwards

A

Live Free To See No Insult At All
lacrimal
frontal
trochlear
superior division of oculomotor
nasociliary
inferior division of oculomotor
abducent

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16
Q

Nucleus of oculomotor

A

Edinger-Westphal

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17
Q

Nerve of motor nucleus and a parasympathetic nucleus

A

oculomotor

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18
Q

Nucleus in upper midbrain

A

Edinger-Westphal

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19
Q

Superior division of Oculomotor supply

A

superior rectus
L.P.S

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20
Q

inferior division of Oculomotor supply

A

medial rectus
inferior rectus
inferior oblique

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21
Q

Oculomotor related to [Ganglion] by a [muscle]

A

Ciliary
inferior oblique

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22
Q

oculomotor supply extraocular and intraocular muscles

A

5 extraocular (except superior oblique and lateral rectus)
intraocular: constrictor pupillae and ciliary muscle.

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23
Q

Nucleus in the lower midbrain

A

Trochlear

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24
Q

Nerve decussate

A

Trochlear

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25
Q

only cranial nerve which emerges from the dorsal aspect of the brain stem

A

Trochlear

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26
Q

most slender of the cranial nerves

A

Trochlear

27
Q

nucleus in the lower part of the pons.

A

Abducent

28
Q

pierces dura below the dorsum sellae.

A

Abducent

29
Q

Lateral to cavernous sinus
Within cavernous sinus

A

Oculomotor + Trochlear + Ophthalmic
Abducent

30
Q

first division of the trigeminal N

A

Ophthalmic

31
Q

purely sensory

A

Ophthalmic

32
Q

Impulses to Lacrimal come from [Ganglion]

A

sphenopalatine ganglion

33
Q

Abducent nerve is [position] to ICA

A

inferolateral

34
Q

Lacrimal [position] to orbit

A

Lateral

35
Q

Frontal [position] to roof

A

Below

36
Q

supratrochlear and supraorbital are branches of

A

Frontal

37
Q

becomes the anterior ethmoidal nerve

A

Nasociliary

38
Q

communicating sensory branch to the ciliary ganglion

A

Nasociliary

39
Q

sensory and vasomotor

A

Nasociliary

40
Q

Two long ciliary nerves supply

A

ciliary body, iris and the cornea
dilator pupillae muscle

41
Q

supply the upper eyelid and the skin over the nasal bone.

A

infratrochlear

42
Q

supply the posterior ethmoidal air sinus

A

Posterior ethmoidal

43
Q

Supply sphenoidal air sinus

A

Posterior ethmoidal

44
Q

continuation of the nasociliary

A

Anterior ethmoidal

45
Q

runs on the upper surface of the cribriform plate of ethmoid

A

Anterior ethmoidal

46
Q

Nasociliary is [position] to the crista galli

A

lateral

47
Q

escapes as the external nasal nerve

A

Nasociliary

48
Q

skin over the middle of the nose down to its tip

A

external nasal

49
Q

runs in three cavities( orbital, cranial, nasal)

A

anterior ethmoidal

50
Q

second cranial nerve

A

optic

51
Q

develops from the diencephalon

A

optic

52
Q

Optic pierces the sclera about [number] mm medial to the posterior pole of the eyeball.

A

3

53
Q

Length of optic nerve in cm

A

4

54
Q

Optic nerve runs [position] from the eyeball to the optic chiasma.

A

posteromedially

55
Q

Length of Intraorbital part of optic nerve in mm

A

25

56
Q

Length of Intracanalicular part of optic nerve in mm

A

5

57
Q

Length of Intracranial part of optic nerve in mm

A

10

58
Q

Part of optic nerve pierced by the central artery and vein of the retina

A

Intraorbital

59
Q

Preganglionic sympathetic fibers arise from [segments]

A

T1,2,3

60
Q

Parasympathetic supply to the constrictor pupillae and ciliary muscle
Nerve:
Ganglion:

A

oculomotor
ciliary

61
Q

Only the [?] root synapse is in the ganglion.

A

parasympathetic

62
Q

Ciliary ganglion gives rise to [number] short ciliary nerves

A

10-12

63
Q

parasympathetic supply of ciliary ganglion to the lacrimal gland is
Nerve:
Ganglion:

A

facial
pterygopalatine

Special Senses (8 decks)

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