W23-L8: Larynx and Laryngopharynx Flashcards Preview

Matt's Block 06 - Neuro block > W23-L8: Larynx and Laryngopharynx > Flashcards

Flashcards in W23-L8: Larynx and Laryngopharynx Deck (18):
1

What is the upper and lower border of the Larynx?

Epiglottis above, C6/lower border of cricoid cartilage

2

What makes up the laryngeal skeleton?

Superior to inferior:
Hyoid bone
Hyoid-thyroid membrane
Thyroid cartilage
Thyroid-cricoid membrane
Cricoid cartilage

3

Where do the vocal ligaments sit?

Inside the thyroid cartilage

4

Where does the cricoid cartilage articulate with the thyroid cartilage?

The inferior horn

5

What is the posterior wall of the thyroid?

Laryngeal Inlet

6

What attaches to the arytenoid cartilages?

vocal ligaments attach
to anterior processes of arytenoid cartilage, posterior is for
internal muscles of the larynx

7

Where does the epiglottis originate from?

posterior aspect of angle of the thyroid cartilage

8

How many vocal ligaments are there?

2

9

How many mucosal folds are there?

2, superior one is vestibular fold, inferior covers vocal ligament

10

For phonation and breathing where are the vocal ligaments?

Vocal ligaments need to be adducted for phonation, abducted for breathing

11

What muscles alter the position of vocal ligaments?

Intrinsic muscles of the larynx

12

What are the two main nerves that supply the larynx?

Superior laryngeal (splits into two) and recurrent which becomes the inferior laryngeal

13

What are the branches of the superior laryngeal and what do they supply?

External Laryngeal: Cricothyroid

Internal Laryngeal: Sensory to mucosa above laryngeal ligaments

14

What does the inferior laryngeal supply?

Intrinsic muscles except cricothyroid and sesnory innervation to mucosa below laryngeal ligaments

15

What is the blood supply to the larynx?

Comes from above (superior laryngeal vessel with internal laryngeal nerve) and Below (inferior thyroid which is directly anterior to trachea)

16

What is preferable to tracheotomy for emergency airway?

Cricothyroid memrbane puncture as better than directly into trachea to avoid inferior thyroid veins

17

What is the Aryepiglottic fold?

Lateral boundaries of laryngeal inlet

18

What is the motor nerve supply of the pharynx?

Most CN X except for Stylopharyngeus (CN IX)

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