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2MB ENT (The Directors Cut) > Larynx Anatomy > Flashcards

Larynx Anatomy Flashcards

1
Q

What is the larynx?

A

Voice box
Sphincter: regulates airflow + protection of aspirated objects
located between pharynx and trachea

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2
Q

how does larynx help MSK system?

A

Holds pressure into chest during exertion eg. lifting

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3
Q

What level is the hyoid?

A

C3

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4
Q

What level is the thyroid and cricoid cartilage?

A

C6

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5
Q

Laryngeal prominence =

A

adams apple

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6
Q

arytenoid cartilages location?

A

on the posterosuperior cricoid cartilage (cricoarytenoid cartilage)

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7
Q

Cricoid pressure?

A

Pushes against C6 preventing regurgitation/aspiration during ventilation

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8
Q

Describe vocal cords

A

free borders of mucosa covered connective tissue in larynx
true = arytenoid cartilage to thyroid cartilage
false = arytenod to epiglottis

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9
Q

rime glottidis =

A

space between true vocal chords

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10
Q

Describe muscles of larynx

A

All skeletal
Innervate by CNX
Moves vocal cords

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11
Q

Vocal cord movements

A

Tension (increase pitch)
Relaxation (decrease pitch)
Adduction (quieter)
Abduction (louder)

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12
Q

Tensor muscles

A

cricothyroid muscles

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13
Q

Relaxor muscles

A

thyroarytenoid muscles

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14
Q

Adductor muscles

A

Arytenoid muscles

lateral crico-arytenoid muscles

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15
Q

Abductor muscles

A

posterior crico-arytenoid muscles

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16
Q

Larynx innervation

A

laryngeal nerve (CNX)

17
Q

Clinical test of CNX

A 
patient speak (voice hoarse?)
Patient cough (normal and powerful?)

2MB ENT (The Directors Cut) (16 decks)

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