49. Larynx

Question 1

What type of cartilage is found in the larynx?

Answer 1

Hyaline

Question 2

What type of joints are found within the larynx?

Answer 2

Plane synovial

Question 3

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

Answer 3

Sternothyroid
Thryrohyoid
Inferior constrictor

Question 4

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

Answer 4

Posterior cricoarytenoid

Lateral cricoarytenoid

Question 5

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

Answer 5

SLIDE 3-8

Question 6

What type of cartilage is the epiglottis made of?

Answer 6

Elastic

Question 7

Attachments of the epiglottis?

Answer 7

Body of hyoid
Posterior surface of thyroid cartilage
Arytenoid cartilage

Question 8

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

Answer 8

Slide 10

Question 9

Which ligament is the false vocal fold?

Answer 9

Vestibular ligament

Question 10

Which membrane forms the vocal ligament?

Answer 10

Cricothyoid

Question 11

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

Answer 11

Slide 14

Question 12

Attachments of cricothyroid?

Answer 12

Cricoid cartilage

Lamina and inferior cornu of thryoid cartilage

Question 13

Action of cricothyroid?

Answer 13

Tense and elongate vocal folds

Question 14

Innervation of cricothryoid?

Answer 14

External laryngeal branch of vagus

Question 15

Attachment of thyroarytenoid?

Answer 15

Inner surface of thryoid cartilage to arytenoid cartilages

Question 16

Action of thyroarytenoid?

Answer 16

Shorten and relax vocal ligament

Question 17

Innervation of thyroarytenoid?

Answer 17

Recurrent laryngeal nerve

Question 18

Attachments of posterior cricoarytenoid?

Answer 18

Posterior lamina of cricoid cartilage to muscular process of arytenoid cartilage

Question 19

Action of posterior cricoarytenoid?

Answer 19

Abduct vocal cord

Question 20

Innervation of posterior cricoarytenoid?

Answer 20

Recurrent laryngeal branch of vagus

Question 21

Attachments of lateral cricoarytenoid?

Answer 21

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

Question 22

Action of lateral cricoarytenoid?

Answer 22

Adduct vocal folds

Question 23

Innervation of lateral cricoarytenoid?

Answer 23

Recurrent laryngeal branch of vagus

Question 24

Attachments of oblique arytenoid?

Answer 24

Muscular process of arytenoid cartilage to apex of OPPOSITE arytenoid cartilage

Question 25

Action of oblique arytenoid?

Answer 25

Sphincter of laryngeal inlet

Question 26

Innervation of oblique arytenoid?

Answer 26

Recurrent laryngeal branch of vagus

Question 27

Attachments of transverse arytenoid?

Answer 27

Posterior and medial surfaces of arytenoid cartilages to OPPOSITE arytenoid cartilage

Question 28

Action of transverse arytenoid?

Answer 28

Closes posterior part of rima glottidis

Question 29

Innervation of transverse arytenoid?

Answer 29

Recurrent laryngeal branch of vagus

Question 30

From which artery does the superior thryoid arise?

Answer 30

ECA

Question 31

From which artery does the inferior laryngeal arise?

Answer 31

Inferior thryoid

Question 32

From which artery does the inferior thyroid arise?

Answer 32

Thyrocervical trunk from subclavian

Question 33

From which artery does the superior laryngeal arise?

Answer 33

Superior thryoid

Question 34

Venous drainage of thyroid?

Answer 34

Superior Middle Inferior thyroid

Question 35

Venous drainage of larynx?

Answer 35

Superior | Inferior laryngeal

Question 36

**Learn lymphatic drainage of the larynx**

Answer 36

Slide 26