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Bell's Palsy > Definition > Flashcards

Definition Flashcards

1
Q

Definition of Bell’s Palsy

A

idiopathic paralysis of 7th CN

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2
Q

Bell’s Palsy AKA:

A

Prosoplegia
Peripheral Facial Palsy
Idiopathic Facial Palsy

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3
Q

5 Branches of Facial Nerve

A
  1. Temporal
  2. Zygomatic
  3. Buccal
  4. Mandibular
  5. Cervical
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4
Q

Temporal branch innervates

A

Frontalis

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5
Q

Action of Frontalis ms

A
  1. Wrinkling forehead
  2. Raise eyebrows
  3. Moving scalp
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6
Q

Zygomatic nerve innervates

A

Orbicularis oculi

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7
Q

Orbicularis oculi action

A
  1. Closing eyelids
  2. Aiding tear drainage
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8
Q

Buccal nerve innervates

A

Buccinator

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9
Q

Buccinator action

A
  1. Cheek compression
  2. Whistling
  3. Blowing
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10
Q

Mandibular n innervates

A

Orbicularis oris

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11
Q

Orbicularis oris action

A

Lip closure

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12
Q

Cervical n innervates

A

Platysma

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13
Q

Lesion 1

A

Stylomastoid Foramen

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14
Q

Lesion 1 signs and symptoms

A
  1. Unilateral facial weakness
  2. Eye on affected side remains open c lower eyelid sagging
  3. Bell’s phenomenon
  4. (-) Blink or corneal reflex
  5. (-) Whistle
  6. (-) Pursed lip
  7. (-) Wrinkle on forehead
  8. (-) Oculogyric Auricular reflex
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15
Q

Lesion 2

A

Chorda Tympani (Facial canal)

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16
Q

Lesion 2 signs and symptoms

A

Includes symptoms of lesion 1 and;
1. Loss of taste in anterior 2/3 of the tongue
2. Crocodile tears

17
Q

Lesion 3

A

Stapedius Muscle

18
Q

Lesion 3 signs and symptoms

A

Includes symptoms of 1 & 2;
1. Hyperacusis
2. Increased acuity of hearing

19
Q

Lesion 4

A

Geniculate ganglion

20
Q

Lesion 4 signs and symptoms

A

Includes symptoms of 1, 2 and 3;
• Pain behind ear

21
Q

Lesion 5

A

Internal Acoustic Meatus

22
Q

Lesion 5 signs and symptoms

A

Includes symptoms of 1, 2, 3 and 4;
1. Deafness
2. Tinnitus
3. Defective Vestibular response

23
Q

Lesion 6

A

Pons

24
Q

Lesion 6 signs and symptoms

A

Include all symptoms of Bell’s Palsy
May affect:
1. CN V and VIII
2. CN VI, XI, XII

Bell's Palsy (1 decks)

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