Larynx Flashcards Preview

Anatomy Final > Larynx > Flashcards

Flashcards in Larynx Deck (36):
1

Name the 3 main cartilages of the larynx 

  • thyroid cartilage
  • cricoid cartilage
  • epiglottic cartilage 

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2

identify all

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red: superior horn

green: inferior forn

blue: lamina 

3

What is the proper name of the adam's apple

laryngeal prominence

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4

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

cricothyroid joint

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5

What part of the epiglottis connects it to the thyroid

stalk

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6

identify the properties of the arytenoid cartilage

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

7

identify 

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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

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9

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

  • cricothyroid membrane
  • conus elasticus: vocal ligament 

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10

Inferior portion of larynx is known as

vesituble of larynx 

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11

identify

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piriform recess 

12

What is the name for the mucosa wrapping around vestibular ligament

vestibular fold

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13

What is the name for the mucosa wrapping aorund vocal ligament

vocal fold

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14

What lies between the ventricular and vocal folds

laryngeal ventricle

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15

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

  • rima glottidis
  • sepearates supraglottic region from infraglottic region

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16

function of supraghyoid and infrahyoid muscles on the larynx

move the whole larynx

  • suprahyoid: elevate larynx
  • infrahyoid: depress larynx 

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17

function of posterior cricoarytenoid muslces

abduction of vocal cords 

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18

function of lateral circoarytenoid arytenoids

adduction of vocal cords

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19

Function of vocalis and thyroarytenoid muscles

shortening, relaxing vocal cords

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20

function of cricothyroid muscles

lengthening, tightening of vocal cords

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21

origin, insertion, and innervation of cricothyroid muscle

origin: external surface of cricoid arch

insertion: inferior thyroid lamina

innervation: external laryngeal nerve

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22

origin, insertion, and innervation of posterior cricoarytenoid muscle

O: posterior cricoid lamina

I: muscular process of arytenoid

N: Inferior laryngeal nerve 

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23

Origin, Insertion, and Innervation of lateral cricoarytenoid muscle

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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

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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 

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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 

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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

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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 

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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 

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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

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35

What ligament is cut during a cricothyrotomy

median cricothyroid ligament 

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36

Where is a tracheostomy performed

between upper tracheal rings 

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