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BIOM 3000 (Midterm 1) > 7/8- Cranial Nerves > Flashcards

7/8- Cranial Nerves Flashcards

1
Q

Damage to C1-5

A

UMN damage to all 4 limbs

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2
Q

Damage to C6-T2

A

Legs- UMN damage

Arms- LMN damage

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3
Q

Damage to T3-L3

A

Legs- UMN damage

Arms- Fine

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4
Q

Damage to L4-S2

A

Legs- LMN damage

Arms- fine

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5
Q

Attachment for I

A

Olfactory Bulb

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6
Q

Attachment fo II

A

Optic Chiasm

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7
Q

Attachment for III

A

Rostral Midbrain (ventral)

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8
Q

Attachment for IV

A

Midbrain/pons junction (dorsal

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9
Q

Attachment for V

A

Pons (lateral)

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10
Q

Attachment for VI

A

Pontomedullary junction

Ventral

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11
Q

Attachment for VII

A

Pontomedullary junction

Ventral/Lateral

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12
Q

Attachment for VIII

A

Pontomedullary junction

Ventral/Lateral)

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13
Q

Attachment fo IX

A

Rostral Medullar (Lateral)

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14
Q

Attachment for X

A

Rostral Medullar (Lateral)

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15
Q

Attachment for XI

A

Cervical spinal cord (L)

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16
Q

Attachment fo XII

A

Rostral medulla (Ventral/lateral)

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17
Q

Damage to Olfactory Nerve

A

Anosmia- can’t smell

Conductive- problem with axon

Sensorineural- damage to pathway

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18
Q

Inner Hair Cells

A

Principle source of sound info

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19
Q

Outer Hair Cells

A

Controls sensitivity

20
Q

Pupillary Light Reflex/ Oculomotor Dx

A

Abnormal pupillary light response

Lack of constriction of pupil

21
Q

Function of VI

A

ABduction of eye

Innervates lateral rectus (ipsilateral)

22
Q

Function fo XI

A

Shrugging shoulder

Turning head to contralateral side

23
Q

Supranuclear Damage to Hypoglossal Nerve

A

Weakness of contralateral muscles

Tongue moves away from side of damage

24
Q

Nucelar or Nerve Damage to Hypoglossal Nerve

A

Weakness of ipsilateral muscles

Tongues moves towards side of damage

25
Q

Sensory Territory of V

A

Skin of face

Mucous membrane

Teeth

Dura mater

Intracranial muscles

26
Q

Mesencephalic nuclei

A

Only CNS nucleus to contain unipolar sensory neurons

27
Q

V Has Motor Innervartion to

A

Mastication muscle

Tensor timpani (inner ear)

Tensor palati (soft palate)

Mylohyoid and digastric muscle (under jaw)

28
Q

Supranuclear Lesions to Facial Nerve

A

Contralateral motor weakness of lower face

29
Q

Nuclear Lesion to Facial Nerve

A

Complete facial and abducens paralysis on side of lesion

Can’t raise eyebrow, close eye, retract lip

Lesion in nucleus and nevre affects abducens nerve which innervates lateral rectus= can’t ABduct eye

30
Q

Bell’s Palsy

A

Complete paralysis on sid of lesion

Can’t raise eyebrow, close eye, retract lip

31
Q

Solitary Nucleus Receives Input From

A

Viscera

Taste buds (posterior 1/3)

Carotid body (chemoreceptor- monitors CO2,pH levels)

Carotid sinus (Monitor BP -Barr receptor)

Mucous Membranes

32
Q

Glossopharyngeal Nerve

A

IX

Primarily sensory

33
Q

Vagus Nerve

A

X

Most widely distributed CN

Mainly parasymptathetic innveration
- One side innervates thorax, one side innervates abdomen

Have afferent and efferents from these regions

Stimulus and response can be in different parts of the body

34
Q

VII Role in Taset

A

Soft Palate

Foliate papillae

Fungiform papillae

35
Q

IX Role in Taste

A

Circumvallate papillae

Foliate papillae

36
Q

X Role in Taste

A

Epiglottis

37
Q

Projection of Tastes

A

VII and IX go to VPM of thalamus, then go to gustatory ` in insula

38
Q

Where does optic nerve go in thalamus

A

LGN

39
Q

Where does vestibular nerve go in thalamus

A

MGN

40
Q

Where does olfactory nerve go in thalamus

A

Dorsomedial nucleus—> VPM—-> inferior salivatory nucleus

41
Q

Where does trigeminal nerve go in thalamus

A

VPM

42
Q

Where does Glossopharyngeal nerve go in thalamus

A

VPM

43
Q

Where does Vagus nerve go in thalamus

A

VPM and VPL

44
Q

In General, sensation from body goes to

A

VPL (via DCML and spinothalamic)

45
Q

In general, sensation from face goes to

A

VPM

46
Q

3 Zones of trigeminal nerve

A

Opthalamic (forehead)

Maxillary (mouth)

Mandibular (jaw)

BIOM 3000 (Midterm 1) (7 decks)

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