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Second Year Anatomy -Head and Neck > Larynx > Flashcards

Larynx Flashcards

1
Q

Where is the larynx located?

A

Anterior neck

connecting the oropharynx and the trachea

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2
Q

What is the role of the larynx?

A

Protection of passages

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3
Q

How many cartilages on the larynx and how many paired and unpaired?

A

9 cartilages
3 paired
3 unpaired

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4
Q

What are the paired cartilages?

A

Arytenoid
Corniculate
Cuneiform

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5
Q

What are the unparied cartilages?

A

Thyroid
Cricoid
Epiglottis

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6
Q

What is the largest cartilage?

A

Thyroid

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7
Q

What do the two laminae on the thyroid form?

A

The laryngeal prominence- thyroid notch

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8
Q

What does the thyroid cartilage connect?

A

Thyroid cartilage - hyoid bone

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9
Q

What connects cricoid and thyroid cartilage?

A

Cricothyroid membrane

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10
Q

How does the cricoid cartilage attach to 1st tracheal ring?

A

Cricotracheal ligament

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11
Q

Where is the eppiglottis located?

A

Post. to the root of the tongue and hyoid bone

ant to the inlet of larynx

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12
Q

What does the eppiglottis form?

A

Superior margin of laryngeal inlet

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13
Q

Function of eppiglottis?

A

Seal off the trachea during swallowing to prevent aspiration

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14
Q

How is the eppiglottis connected to the thyroid cartilage?

A

Thyroeppiglotic ligament

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15
Q

What does the quadrangular membrane do?

A

Connects the eppiglottis to arytenoid cartilages

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16
Q

What does the upper border of the quadrangular membrane form?

A

vestibular ligament and fold

17
Q

What does the lower border of the quadrangular membrane form?

A

Ary-epiglottic ligamnets and folds

18
Q

Where is the laryngeal cavity located?

A

Between the laryngeal inlet adn inferior border of the cricoid cartilage

19
Q

What are present in the laryngeal cavity?

A

Laryngeal verstibule
Middle region of the cavity
Laryngeal ventricle
Infra-glotic cavity

20
Q

What does each vocal fold contain?

A

Vocal ligament and vocalis muscle

21
Q

What is the role of the vocal folds?

A

Control the production of sound

Closes larynx to prevent choking

22
Q

What is the rima glottidis

A

aperature located between vocal folds

changes shape depending depending on the vocal folds

23
Q

What are the laryngeal muscles

A 
Cricothyroid muscles
Thyro-arytenoid  muscles
Vocalis muscle 
Post. crico-arytenoid muscle
lateral crico-arytenoid muscle
Transverse and oblique arytenoid
24
Q

What is the only laryngeal muscle innervated by the external laryngeal nerves

A

Crico-thyroid muscle

Second Year Anatomy -Head and Neck (20 decks)

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