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Anatomy Final > Larynx > Flashcards

Flashcards in Larynx Deck (36):
1

Name the 3 main cartilages of the larynx 

  • thyroid cartilage
  • cricoid cartilage
  • epiglottic cartilage 

2

identify all

red: superior horn

green: inferior forn

blue: lamina 

3

What is the proper name of the adam's apple

laryngeal prominence

4

What joint allos anteroinferior rotation of the thyroid on the cricoid?

cricothyroid joint

5

What part of the epiglottis connects it to the thyroid

stalk

6

identify the properties of the arytenoid cartilage

  • green: cricoarytenoid joint
  • red: muscular process
  • blue: vocal process 

7

identify 

thyrohyoid membrane

8

What membrane runs from the epigiglottis to the arytenoid cartilage? What 2 ligaments form its superior border and inferior border

  • quadrangular ligament
  • ary-epiglottic ligament: superior
  • vestibular ligament: inferior

9

What membrane runs from the cricoid to the thryoid cartilage? What ligaments makes up the superior border?

  • cricothyroid membrane
  • conus elasticus: vocal ligament 

10

Inferior portion of larynx is known as

vesituble of larynx 

11

identify

piriform recess 

12

What is the name for the mucosa wrapping around vestibular ligament

vestibular fold

13

What is the name for the mucosa wrapping aorund vocal ligament

vocal fold

14

What lies between the ventricular and vocal folds

laryngeal ventricle

15

What is the space between the vocal folds called? What two spaces does it seperate

  • rima glottidis
  • sepearates supraglottic region from infraglottic region

16

function of supraghyoid and infrahyoid muscles on the larynx

move the whole larynx

  • suprahyoid: elevate larynx
  • infrahyoid: depress larynx 

17

function of posterior cricoarytenoid muslces

abduction of vocal cords 

18

function of lateral circoarytenoid arytenoids

adduction of vocal cords

19

Function of vocalis and thyroarytenoid muscles

shortening, relaxing vocal cords

20

function of cricothyroid muscles

lengthening, tightening of vocal cords

21

origin, insertion, and innervation of cricothyroid muscle

origin: external surface of cricoid arch

insertion: inferior thyroid lamina

innervation: external laryngeal nerve

22

origin, insertion, and innervation of posterior cricoarytenoid muscle

O: posterior cricoid lamina

I: muscular process of arytenoid

N: Inferior laryngeal nerve 

23

Origin, Insertion, and Innervation of lateral cricoarytenoid muscle

O: cricoid arch

I: muscular process of arytenoid

N: inferior laryngeal n.

24

Origin, insertion, and innervation of arytenoids muscles

O: body of arytenoid

I: contralateral arytenoid

N: inferior laryngeal nerve 

25

Origin, insertion, and innervation of thyroarytenoid

O: thyroid lamina

I: body of arytenoid

N: inferior laryngeal nerve 

26

Origin, insertion, and innervation of vocalis

O: vocal process of arytenoid

I: vocal ligament

N: inferior laryngeal nerve 

27

Superior laryngeal nerve comes off of what nerve?

Branch of Vagus N.

28

Superior laryngeal nerve has 2 branches, name them:

  • external laryngeal nerve: only motor to cricothyroid m.
  • Internal laryngeal nerve: pierces thyrohyoid membrane to give sensation to supraglottic laryngeal region 

29

Where does the inferior laryngeal nerve come from? What type of innervation does it provide?

  • continuation of recurrent laryngeal nerve
  • MOTOR to ALL internal laryngeal muscles
  • SENSORY to glottis and infraglottic cavity

30

What would you expect from unilateral and bilateral damage to inferior laryngeal n.

unilateral: weak, breathy voice

bilateral: little to no phonation at all 

31

Cough reflex: what is it? What nerves are responsible

  • highly sensitive mucosa of the supraglottic space protects vocal folds and infraglottic cavity
  • Sensory limb: vagus
  • Motor limb: vagus 

32

All blood and lymph supply is divided by what structure

glottis 

33

What is vessels and lymphatics supply the larynx superior to the glottis?

  • superior laryngeal vessels: from superior thyroid vessels
  • lymph follows veins to superior deep cervical lymph nodes 

34

What vessels and lymphatics supply the larynx inferior to the glottis

  • inferior laryngeal vessels from inferior thyroid vessels
  • lymph follows veins to inferior deep cervical lymph nodes

35

What ligament is cut during a cricothyrotomy

median cricothyroid ligament 

36

Where is a tracheostomy performed

between upper tracheal rings