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Anatomy 2 > Larynx > Flashcards

Larynx Flashcards

1
Q

Describe the larynx?

A

Voice production, hyaline cartilage, small plane synovial joints

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2
Q

Why is the cuneiform within aryepiglottic folds?

A

To support them

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3
Q

What attaches the aryepiglottic fold?

A

Corniculate

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4
Q

What kind of cartilage is epiglottis?

A

Elastic cartilage

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5
Q

What are the anterior connections of the epiglottis?

A

To body of hyoid bone and posterior surface of thyroid cartilage

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6
Q

What are the lateral connections of the epiglottis?

A

To arytenoid cartilages via aryepiglottic folds

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7
Q

What is the mucous membrane covering reflected onto posterior surface of tongue?

A

Median glossoepiglottic fold and lateral phyryngoepiglottoc folds

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8
Q

What attaches arytenoid cartilages to epiglottis?

A

Quadrangular ligament - free edge is vestibular ligament

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9
Q

What is the function of the vocal fold movements

A

Change air flow through larynx = sound production (phonation).

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10
Q

What creates individual sounds and words by movements?

A

Lips, cheeks and tongue

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11
Q

What are the external muscles of the larynx?

A

Supra and infra-hyoid muscles

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12
Q

What are the elevation muscles of the larynx?

A

Digastric, stylohyoid, mylohyoid, geniohyoid

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13
Q

What are the depression muscles of the larynx?

A

Sternothyroid, sternohyoid, omohyoid

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14
Q

What are the internal muscles of the larynx?

A

Muscles which pass between elements of the larynx and move the cartilages or vocal folds

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15
Q

Attachments of the cricoid cartilage?

A

To lamina and inferior cornu of thyroid cartilage

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16
Q

What increases distance between thyroid cartilage and vocal processes of arytenoid?

A

Tense and elongate vocal folds

17
Q

What innervates the cricothyroid?

A

External laryngeal branch of vagus (CN X)

18
Q

Attachments of the thyroarytenoid?

A

Inner surface of angle of thyroid cartilage to anterolateral surface of arytenoid cartilages

19
Q

Where do the upper fibres of the thyroarytenoid run alongside?

A

Coval ligament - vocalis

20
Q

What happens when arytenoids are pulled forwards towards thyroid cartilage?

A

Shorten and relax vocal ligament

21
Q

What innervates the thyroarytenoid?

A

Recurrent laryngeal nerve

22
Q

Attachments of the posterior circoarytenoid?

A

Posterior of lamina of circoid cartilage to muscular process of arytenoid cartilage

23
Q

What does the posterior cricoarytenoid do?

A

Pulls muscular process of arytenoid backwards

24
Q

What innervates the posterior cricoarytenoid?

A

Recurrent laryngeal branch of vagus

25
Q

What do the infra and supra hyoid muscles attach to?

A

The hyoid bone or thyroid cartilage

26
Q

What is the functions of the infra and supra hyoid muscles?

A

To move the entire larynx for swallowing

Anatomy 2 (26 decks)

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