49. Larynx Flashcards

1
Q

What type of cartilage is found in the larynx?

A

Hyaline

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2
Q

What type of joints are found within the larynx?

A

Plane synovial

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3
Q

Which 3 muscles attach to the oblique line of the thyroid cartilage?

A

Sternothyroid
Thryrohyoid
Inferior constrictor

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4
Q

Which 2 muscles attach to the muscular process of the arytenoid cartilage?

A

Posterior cricoarytenoid

Lateral cricoarytenoid

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5
Q

Make sure you can identify - thyroid/ cricoid/ arytenoid cartilage, corniculate, cuneiform and epiglottis

A

SLIDE 3-8

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6
Q

What type of cartilage is the epiglottis made of?

A

Elastic

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7
Q

Attachments of the epiglottis?

A

Body of hyoid
Posterior surface of thyroid cartilage
Arytenoid cartilage

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8
Q

Make sure you can identify the membranes and ligaments of the larynx

A

Slide 10

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9
Q

Which ligament is the false vocal fold?

A

Vestibular ligament

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10
Q

Which membrane forms the vocal ligament?

A

Cricothyoid

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11
Q

Make sure you know what the vocal folds do/ look like during respiration and phonation

A

Slide 14

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12
Q

Attachments of cricothyroid?

A

Cricoid cartilage

Lamina and inferior cornu of thryoid cartilage

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13
Q

Action of cricothyroid?

A

Tense and elongate vocal folds

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14
Q

Innervation of cricothryoid?

A

External laryngeal branch of vagus

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15
Q

Attachment of thyroarytenoid?

A

Inner surface of thryoid cartilage to arytenoid cartilages

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16
Q

Action of thyroarytenoid?

A

Shorten and relax vocal ligament

17
Q

Innervation of thyroarytenoid?

A

Recurrent laryngeal nerve

18
Q

Attachments of posterior cricoarytenoid?

A

Posterior lamina of cricoid cartilage to muscular process of arytenoid cartilage

19
Q

Action of posterior cricoarytenoid?

A

Abduct vocal cord

20
Q

Innervation of posterior cricoarytenoid?

A

Recurrent laryngeal branch of vagus

21
Q

Attachments of lateral cricoarytenoid?

A

Upper edge of arch of cricoid to muscular process of arytenoid cartilages

22
Q

Action of lateral cricoarytenoid?

A

Adduct vocal folds

23
Q

Innervation of lateral cricoarytenoid?

A

Recurrent laryngeal branch of vagus

24
Q

Attachments of oblique arytenoid?

A

Muscular process of arytenoid cartilage to apex of OPPOSITE arytenoid cartilage

25
Q

Action of oblique arytenoid?

A

Sphincter of laryngeal inlet

26
Q

Innervation of oblique arytenoid?

A

Recurrent laryngeal branch of vagus

27
Q

Attachments of transverse arytenoid?

A

Posterior and medial surfaces of arytenoid cartilages to OPPOSITE arytenoid cartilage

28
Q

Action of transverse arytenoid?

A

Closes posterior part of rima glottidis

29
Q

Innervation of transverse arytenoid?

A

Recurrent laryngeal branch of vagus

30
Q

From which artery does the superior thryoid arise?

A

ECA

31
Q

From which artery does the inferior laryngeal arise?

A

Inferior thryoid

32
Q

From which artery does the inferior thyroid arise?

A

Thyrocervical trunk from subclavian

33
Q

From which artery does the superior laryngeal arise?

A

Superior thryoid

34
Q

Venous drainage of thyroid?

A

Superior
Middle
Inferior thyroid

35
Q

Venous drainage of larynx?

A

Superior

Inferior laryngeal

36
Q

Learn lymphatic drainage of the larynx

A

Slide 26