Larynx/Laryngopharynx Flashcards Preview

Jason's Neuro Block > Larynx/Laryngopharynx > Flashcards

Flashcards in Larynx/Laryngopharynx Deck (27):
1

borders of the larynx?

starts at epiglottis
ends at C6/lower cricoid cartilage

2

what part of the laryngeal skeleton is open?

posteriorly
hyoid bone
thyroid cartilage

3

what are the 3 structures of the laryngeal skeleton?

hyoid bone
thyroid cartilage
cricoid cartilage

4

cricoid cartilage is open or closed posteriorly?

closed

5

what is the arytenoid cartilage? what movements do they do? what are the movements for?

attached to cricoid cartilage
1. swivel
2. slide together and apart
movements to allow for phonation

6

epiglottic cartilage attaches where?

thyroid cartilage

7

2 vocal ligaments?

1. vestibular fold/false cords
2. vocal fold/true cords

8

vocal cords are above or below the cricoid cartilage?

above

9

what muscle slides the arytenoid cartilages together?

transverse and oblique arytenoids

10

what intrinsic muscles swivel the arytenoids? what direction?

posterior cricoarytenoids: abducts
lateral cricoarytenoids: adducts

11

what relaxes the vocal folds?

vocalis

12

what lengthens vocal folds?

cricothyroid muscle

13

lateral cricoarytenoids do what?

adducts arytenoids

14

vocalis does what?

releaxes vocal folds

15

posterior cricoarytenoids do what?

abducts arytenoids

16

cricothyroid muscle does what

lengthens vocal folds

17

what innervates vocal cords?

recurrent laryngeal nerve

18

what innervates upper larynx?

superior laryngeal from vagus

19

superior laryngeal nerves splits into?

external
internal

20

where is the best place for emergency airway?

cricothyroid membrane puncture

21

what is the piriform recess for?

fluids to runs down when swallowing

22

epiglottis isn't a perfect seal so what happens when you swallow?

entire larynx and pharynx elevates to make tight seal

23

what is the aryepiglottic fold for?

lateral boundary of laryngeal inlet

24

what 3 nerves innervates the pharynx?

1. trigeminal: pharyngeal brs of maxillary V2
2. CN IX
3. CN X internal laryngeal nerve

25

what innervates stylopharyngeus?

CNIX

26

what innervates sup, mid, inf constrictor, salpingopharyngeus, palatopharyngeus ?

Vagus CN X

27

what does CN X not innervate?

stylopharyngeus