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Special Senses > Anatomy > Flashcards

Anatomy Flashcards

1
Q

The apex of the body orbit points
The apex of the body orbit lies where in the orbital cavity?
The apex of the body orbit is related to

A

posteriorly
posteromedial end
superior orbital fissure

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2
Q

Frontal bone separates the roof from

A

Anterior cranial fossa

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3
Q

Maxilla separates the floor from

A

Maxillary sinus

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4
Q

Lacrimal bone and ethmoid bone separates the medial wall from

A

Ethmoidal air sinuses

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5
Q

The superior oblique muscle is related to

A

Roof

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6
Q

What is present close to the back of the Roof?

A

Optic canal

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7
Q

Medial wall presents what at its junction with the roof

A

ethmoidal foramina

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8
Q

State how many extraocular muscles
For upper eyelid
For lower eyelid

A

7
levator palpebrae superioris
4 recti + 2 oblique

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9
Q

Muscle which originate from the back of the roof

A

L.P.S

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10
Q

Muscle which is smooth and involuntary

A

superior tarsal

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11
Q

Muscle is the elevator of the upper eyelid

A

L.P.S

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12
Q

Horner’s syndrome

A

ptosis, miosis, anhidrosis and enophthalmos.

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13
Q

The 4 recti muscles arise from the common tendinous ring which is attached around the optic canal and

A

medial part of the superior orbital fissure

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14
Q

The 4 recti muscles are inserted by expanded tendons into the sclera [NUMBER] mm behind the corneoscleral junction

A

6-7

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15
Q

Muscle which originate from the roof

A

L.P.S
Superior Oblique

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16
Q

Muscle which originate from the floor

A

Inferior Oblique

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17
Q

Inferior oblique originate from the floor of the orbit lateral to the

A

nasolacrimal groove

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18
Q

Superior Oblique originate from the roof of the orbit superomedial to the

A

optic canal

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19
Q

[Muscle] insert into the sclera posterior to the coronal equator of the eyeball

A

Superior and inferior oblique

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20
Q

Muscle inserted in the lateral part of the sclera

A

Inferior Oblique

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21
Q

Reading and downstairs Muscles

A

Inferior rectus
superior oblique

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22
Q

Nerve that doesn’t enter the orbit via the superior orbital fissure

A

optic nerve

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23
Q

3 nerves pass through SOF outside the common tendinous ring

A

lacrimal, frontal, trochlear

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24
Q

3 nerves pass through the SOF within the common tendinous ring

A

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

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25
Q

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

A

Optic nerve
Ophthalmic artery

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26
Q

Edinger-Westphal nucleus

A

Oculomotor Nerve

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27
Q

Nucleus in the upper midbrain

A

Oculomotor Nerve

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28
Q

nucleus in the lower midbrain

A

Trochlear Nerve

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29
Q

nucleus in the lower part of the pons

A

Abducent Nerve

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30
Q

first division of the trigeminal nerve

A

Ophthalmic Nerve

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31
Q

purely sensory nerve

A

Ophthalmic

32
Q

Nerve enters the orbit via the SOF outside the tendinous ring

A

Lacrimal
Frontal

33
Q

Nerve enters the orbit via SOF within the tendinous ring

A

Nasociliary

34
Q

second cranial nerve

A

Optic

35
Q

Nerve concerned with vision

A

Optic

36
Q

Lacrimal nerve runs above [muscle]

A

lateral rectus

37
Q

Impulses from Lacrimal nerve come from [Ganglion}

A

sphenopalatine

38
Q

Frontal nerve runs anteriorly above [muscle]

A

L.P.S

39
Q

Nerve runs below the roof

A

Frontal

40
Q

[Nerve] becomes anterior ethmoidal nerve

A

Nasociliary

41
Q

[Nerve] develops from the diencephalon of the brain

A

optic

42
Q

Compressed during papilloedema

A

Retinal central VEIN

43
Q

Length of optic nerve

A

4 cm

44
Q

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

A

3

45
Q

Length of Intraorbital part of optic nerve

A

25 mm

46
Q

Length of Intracanalicular part of optic nerve

A

5 mm

47
Q

Length of Intracranial part of optic nerve

A

10 mm

48
Q

Part of optic nerve which lies in the middle cranial fossa

A

Intracranial

49
Q

Optic nerve is sensory to [Ganglion]

A

ciliary

50
Q

Two long ciliary nerves supply

A

ciliary body
iris
cornea
dilator pupillae muscle

51
Q

supply the posterior ethmoidal and sphenoidal air sinuses

A

Posterior ethmoidal nerve

52
Q

continuation of the nasociliary nerve

A

Anterior ethmoidal nerve

53
Q

[Nerve] runs on the upper surface of the cribriform plate of ethmoid

A

Anterior ethmoidal

54
Q

Anterior ethmoidal nerve is [Position] to crista galli

A

Lateral

55
Q

[nerve] runs in three cavities ( orbital, cranial, nasal cavities)

A

anterior ethmoidal

56
Q

Preganglionic sympathetic fibers come from [segments]

A

T1,2,3

57
Q

Parasympathetic supply of the ciliary ganglion to [muscle]

A

constrictor pupillae
ciliary

58
Q

Nerve and ganglion to constrictor pupillae and ciliary muscles

A

oculomotor
ciliary

59
Q

ganglion of accomodation reflex

A

Ciliary

60
Q

Only the [ _____ ] root synapse in the ciliary ganglion.

A

parasympathetic

61
Q

The ciliary ganglion gives rise to [number] short ciliary nerves

A

10-12

62
Q

parasympathetic supply to the lacrimal gland is supplied by the [Nerve]

A

facial

63
Q

[Ganglion] supplies parasympathetically to the lacrimal gland

A

pterygopalatine

64
Q

ophthalmic artery is a branch of the [number] part of the ICA

A

4th

65
Q

ophthalmic artery is [position] to the anterior clinoid process

A

Medial

66
Q

first branch of the ophthalmic A

A

Central A. of the retina

67
Q

Artery where if thrombosis occurs in it will lead to blindness

A

Central A. of the retina

68
Q

End

A

Central A. of the retina

69
Q

Artery to choroid and iris

A

Long and short posterior ciliary arteries

70
Q

Artery Accompany the corresponding N

A

Supraorbital
Supratrochlear

71
Q

Ophthalmic vein connects

A

facial vein to the intracranial venous sinuses

72
Q

Emissary

A

Ophthalmic Veins

73
Q

Starts in the roof

A

superior ophthalmic V

74
Q

receives tributaries corresponding to the branches of the ophthalmic A

A

superior ophthalmic V

75
Q

Starts in the floor

A

inferior ophthalmic V

76
Q

Starts from a venous plexus

A

inferior ophthalmic V

Special Senses (8 decks)

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