ENT Flashcards

(37 cards)

1
Q

What nerve supplies sensation to skin of the face?

A

Trigeminal

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2
Q

What does the stapedius do?

A

When contracts pulls the stapes posteriorly and dampens down vibration of ossicles: useful in loud situations

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3
Q

What nerve passes near the mastoid

A

facial

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4
Q

What is the tensor tympani innervated by?

A

Nerve to tensor tympani: a branch of mandibular division of trigeminal nerve

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5
Q

Describe a vestibular schawannoma and its presentation?

A

benign subarachnoid tumour of CN VIII causing local pressure effects causing unilateral hearing loss and tinnitus. A progressive disease. MRI performed to rule out malignancy. Surgical excision

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6
Q

What size do vestibular schwannomas have to be for surgical excision?

A

OVer 40mm
If under repeat MRI every 6 months

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7
Q

What does the chorda tympani do

A

Special sensation- Carries taste sensation from anterior portion of the tongue
Parasymp- submandibular and sublingual

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8
Q

What does the vagus nerve pass out of

A

Jugular foramen

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9
Q

What is the first branch of the vagus nerve

A

Superior laryngeal nerve

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10
Q

What does the superior laryngeal nerve innervate

A

The cricothyroid muscle which helps adduct the vocal cords

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11
Q

What does the inferior laryngeal nerve do

A

motor innervation to intrinsic laryngeal muscles and sensory to larynx

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12
Q

most likely diagnosis for vertigo lasting days/weeks

A

Labrynthitis and vestibular neuronitis

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13
Q

first line treatment for persistent otitis media with effusion

A

grommet insertion

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14
Q

Other than antibiotics what treatment for severe tonsilitis

A

Steroids

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15
Q

Lump between isthmus of thyroid and hyoid bone

A

Thyroglossal cyst

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16
Q

neck lump associated with dysphagia, aspiration and chronic cough

A

pharyngeal pouch

17
Q

pulsatile neck lump

A

carotid anuersym

18
Q

What verterbral level is the cricoid cartilage

19
Q

what vertebral level is the hyoid cartilage

20
Q

what vertebral level is the thyroid cartilage

21
Q

What is seen in glandular fever

A
  • Gross tonsillar enlargement with membranous exudates
  • Marked cervical lymphadenopathy
  • Generalised lymphadenopathy
  • Palatal petchial haemorrahages
  • Hepatosplenomegaly, jaundice, hepatitis
  • Rash
22
Q

What is seen on blood film of glandular fever

A

atypical lymphocytes
paul-bunnel test can be used

23
Q

Where does ophthalmic branch enter enter the skull

A

Travels along lateral wall of cavernous sinus through superior orbital fissure

24
Q

Where does the maxillary nerve enter the skull

A

Inferior to V1 along cavernous sinus exit at foramen rotundum

25
Where does the mandibular nerve enter the skull
Does not pass through cavernous sinus, exits at foramen ovale
25
Where does the mandibular nerve enter the skull
Does not pass through cavernous sinus, exits at foramen ovale
26
What is Ramsay-Hunt syndrome
Reactivation of varicella zoster virus in the geniculate ganglion of the facial nerve causing a facial nerve palsy and vesicular rash. MM- aciclovir and corticosteroids
27
What does the tensor tympani attach to
the malleus
28
What does the ansa cervicalis innervate
Ansa cervicalis muscles: GHost THought SOmeone Stupid Shot Irene GenioHyoid ThyroidHyoid Superior Omohyoid SternoThyroid SternoHyoid Inferior Omohyoid
29
Classical symptoms of cholesteatoma
Recurrent aural discharge, assymetrical hearing loss. Potentially facial weakness due to facial nerve involvement and dizziness and nystagmus from choleastoma eroding into the semi-circular canals History of previous surgery is key risk factor
30
Which thyroid malignancy cannot be diagnosed with fine needle aspiration
Follicular carcinoma
31
What is the dix hallpike manouver
Test for BBPV: 1. Patient sits up with head turned to 45 degrees to one side 2. Lie patient down with head over the bed and look for nystagmus 3. Repeat on contralateral side
32
ABX for tonsilitis
Phenoxymethypenicillin
33
How can the vagus nerve be tested
asking the patient to phonate and observing for a symmetrical rise in the palate and uvula due to vagus nerve supplying motor innervation to the soft palate
34
Nerves of the gag reflex
Afferent: glossopharyngeal Efferent: Vagus
35
What is the lingual nerve
A terminal branch of the mandibular nerve Supplies sensory innervation to anterior 2/3rds of mouth and floor of mouth Also carries fibres of taste sensation from the chorda tympani from the anterior 2/3rds of the mouth via chorda tympani
36
Osteosclerosis affects which bone
Stapes