Cranial Nerves (2) Flashcards

1
Q
A
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2
Q

Motor Portion of Trigeminal Nerve

A
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3
Q

Sensory Portion of Trigeminal Nerve

A
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4
Q

Sensory Portion of Trigeminal Nerve

  • Ophthalmic Division
A
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5
Q

Sensory Portion of Trigeminal Nerve

  • Maxillary Division
A
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6
Q

Sensory Portion of Trigeminal Nerve

  • Mandibular Division
A
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7
Q

Lesion in Trigeminal Nerve

  • sensory
A
  • Peripheral & Central
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8
Q

Lesion in Trigeminal Nerve

A
  • Sensory
  • Motor
  • Reflexes
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9
Q

Lesion in Trigeminal Nerve

  • sensory Peripheral Lesion
A
  • Loss of sensations on the same side of the face (sparing the angle of the angle of the mandible).
  • Loss of general sensations over the anterior 2/3 s of the tongue, (in lesions of the mandibular division).
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10
Q

Lesion in Trigeminal Nerve

  • Motor Lesion
A
  • Weakness of the muscles of mastication on the same side of the lesion.
  • Deviation of the jaw to the affected side due to the unopposed action of the pterygoid muscles of the healthy Side
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11
Q

Lesion in Trigeminal Nerve

  • Sensory Central Lesion
A
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12
Q

Lesion in Trigeminal Nerve

  • Reflexes Affected
A
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13
Q

Def of Trigeminal Neuralgia

A
  • Severe attacks of pain along one or more of the sensory branches of the trigeminal nerve, usually the maxillary or mandibular.
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14
Q

Etiology of Trigeminal Neuralgia

A
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15
Q

CP of Trigeminal Neuralgia

A
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16
Q

CP of Trigeminal Neuralgia

  • Site & reference
A
  • One or more branches of the TN (usually the maxillary or mandibular).
  • Pain is unilateral (rarely bilateral).
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17
Q

CP of Trigeminal Neuralgia

  • characters & Duration
A
  • Severe agonizing: stabbing, burning, electric shocks.
  • Several seconds to several minutes (rarely hours or even longer).
  • Recurrent: but the patient is completely free in between the attacks.
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18
Q

CP of Trigeminal Neuralgia

  • PPT by
A

Movements of the jaw: e.g. laughing & mastication.

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19
Q

CP of Trigeminal Neuralgia

  • Relieved By
A

Spontaneously, or by potent analgesics.

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20
Q

CP of Trigeminal Neuralgia

  • Associated Symptoms
A

Pain → brief muscle spasm of the facial muscles → tic.

21
Q

TTT of Trigeminal Neuralgia

A
22
Q

DDx of Facial Pain

A
23
Q

Motor Portion of Facial Nerve

A
24
Q

Sensory Portion of Facial Nerve

A
25
Q

The Motor Part of Facial Nerve Supplies?

A

1) Muscles of facial expression.
2) Platysma.
3) Stylohyoid.
4) Stapedius.
5) PoSterior belly of digastric muscle.

26
Q

The Sensory Part of Facial Nerve Supplies?

A
27
Q

The Sensory Part of Facial Nerve Supplies?

  • Parasympathetic Fibers
A

to submaxillary, sublingual, and lacrimal glands.

28
Q

The Sensory Part of Facial Nerve Supplies?

  • Taste fibers
A

from the anterior 2/3 of the tongue.

29
Q

The Sensory Part of Facial Nerve Supplies?

  • Proprioception sesnations
A

from the muscles.

30
Q

Lesions in The Facial Nerve

A
  • Central
    • Peripheral
31
Q

Causes of Lesions in The Facial Nerve

  • Central Facial Paralysis
A
32
Q

Causes of Central Lesions in The Facial Nerve

  • Traumatic
A

Cerebral laceration or intracerebral hemorrhage

33
Q

Causes of Central Lesions in The Facial Nerve

  • Infective
A

Encephalitis

34
Q

Causes of Central Lesions in The Facial Nerve

  • Neoplasm
A

Meningioma, Glioma

35
Q

Causes of Central Lesions in The Facial Nerve

  • Vascular
A

Thrombotic, embolic, or hemorrhagic.

36
Q

Causes of Central Lesions in The Facial Nerve

  • demylinating
A

MS - ADEM

37
Q

Causes of Central Lesions in The Facial Nerve

  • degenerative
A

M.N.D. (pseudo bulbar palsy).

38
Q

Causes of Lesions in The Facial Nerve

  • Peripheral
A
  • Nuclear lesions in the pons
  • Infra-nuclear lesions cerebello-pontine angle
  • Infra-nuclear lesions in the in the facial canal
39
Q

Causes of Peripheral Facial Paralysis

A
40
Q

Causes of Peripheral Facial Paralysis

  • Nuclear Lesions in Pons
A
  1. Infective: Poliomyelitis, encephalitis, tuberculoma.
  2. Neoplasm: Astrocytoma
  3. Vascular: Foville’s neurinoma.
  4. Demyelinating: M.S.
41
Q

Causes of Peripheral Facial Paralysis

  • Infra-nuclear lesions in the cerebello-pontine angle
A
  1. Acoustic neurinoma.
  2. Cerebello- pontine angle: meningioma, ependymoma, or congenital aneurysm
  3. Glioma of brain stem or cerebellum syndrome invading the cerebello-pontine angle
  4. Cystic arachnoiditis.
  5. Basal meningitis
42
Q

Causes of Peripheral Facial Paralysis

  • Infra-Nuclear Lesions in the facial Canal
A
  1. Middle ear disease.
  2. Bell’s palsy.
  3. Facial nerve neuroma
43
Q

CP of Central Facial Paralysis

A
44
Q

CP of Peripheral Facial Paralysis

A
45
Q

DIfference between UMNL & LMNL in Facial Paralysis

A
46
Q

DIfference between UMNL & LMNL in Facial Paralysis

  • Areas
A
47
Q

DIfference between UMNL & LMNL in Facial Paralysis

  • Type of movemnets
A
48
Q

DIfference between UMNL & LMNL in Facial Paralysis

  • Side
A