larynx

Question 1

what makes up the larynx

Answer 1

cartilage, ligaments, membranes. muscles (no bone)

Question 2

larynx length

Answer 2

C3-C6

Question 3

roll of hyoid on larynx

Answer 3

hold up the larynx

Question 4

3 regions of the larynx

Answer 4

Vestibule
Ventricle(between the folds of the larynx)
Infraglottic

Question 5

the laryngeal cartilages

Answer 5

(9)
unpaired: epiglottis, thyroid cartilage, cricoid cartilage
Paired: arytenoid cartilage, corniculate cartilage, cuneiform cartilage

Question 6

what are laryngeal cartilages made of

Answer 6

hyaline cartilage (except for epiglottis which is elastic)

Question 7

what holds the epiglottis to the thyroid

Answer 7

thyro-epiglottic ligament

Question 8

the 2 large flat parts of the thyroid cartilage that fuse together at the anterior midline

Answer 8

lamina

Question 9

the adam’s apple

Answer 9

laryngeal prominence

Question 10

roll of superior and inferior horns of the thyroid cartilage

Answer 10

anchor it to hyoid or articulate with the cricoid cartilage

Question 11

shape of the cricoid cartialge

Answer 11

ring with thick lamina (posterior) and thin arch (anterior)

Question 12

where the cricoid cartilage and the thyroid cartilage meet

Answer 12

at the cricothyroid joint (small synovial joint)

Question 13

importance of the cricothyroid joint

Answer 13

tilt thyroid to tighten vocal cords

Question 14

main motor for the larynx

Answer 14

recurrent laryngeal nerve (branch of vagus)

Question 15

where the recurrent laryngeal nerve becomes the inferior laryngeal nerve

Answer 15

at the cricothyroid joint

Question 16

what sits onto of the cricoid cartilage

Answer 16

arytenoid cartilage

Question 17

where muscles attach on the arytenoid cartilage

Answer 17

on the posterior muscular process(broad)

Question 18

where the vocal cords attach on the arytenoid cartilage

Answer 18

on the thin, anterior vocal process

Question 19

where are the corniculate and cuneiform cartilages

Answer 19

corniculate: on the arytenoid cartilage
Cuneiform: in ligament

Question 20

extrnisic ligaments of the thyroid

Answer 20

thyrohyoid membrane: lateral thyrohyoid ligament(2) and medial thyrohyoid lig
Cricotracheal lig.
Hyo-epiglottic lig.

Question 21

intrinsic ligaments of the larynx

Answer 21

cricothyroid lig: vocal ligament, median cricothyroid lig

Quadrangular membrane: vestibular lig

Question 22

what covers the structures of the larynx

Answer 22

mucous membrane

Question 23

difference between vocal fold, vestibular fold and the vocal and vistibular ligament

Answer 23

fold have the mucous membrane covering it

Question 24

what is the quadrangular membrane covered in mecus membrane

Answer 24

aryepiglottic fold

Question 25

relation of the vestibular ligmaent and the vocal ligaments

Answer 25

vestibular is superior and slightly lateral

Question 26

the space between the vestibular fold

Answer 26

rima vestibuli

Question 27

the space between the vocal fold

Answer 27

rima glottidis

Question 28

what innervates the larynx muscles

Answer 28

inferior laryngeal n(except cricothyroid muscle: external laryngeal n)

Question 29

parts of the the cricothyroid muscle

Answer 29

lateral: oblique portion medial: straight portion

Question 30

roll of ciricothyroid cartilage

Answer 30

pulls on the thyroid cartilage to tighte the vocal cords

Question 31

muscle of the internal larynx

Answer 31

``` vocalis m lateral crico-arytenoid m posterior crico-arytenoid m oblique arytenoid m transverse arytenoid m ```

Question 32

action of the posterior crico-arytenoid

Answer 32

opens the rima glottidis (the only muscle that does

Question 33

what do all larynx musculature do to the vocal cords except posterior ciroco-arytenoid m

Answer 33

tightens or close the rima glottidis

Question 34

what larynx muscle is esential to maintaining an open airway

Answer 34

posterior cryoarytenoid mm

Question 35

the spasmodic closure of glottis (life threatening

Answer 35

laryngospasm

Question 36

cause of spasm of laryngeal mm

Answer 36

iritating cheical | pharmaceutical side effects...

Question 37

what does the superior laryngeal a supply

Answer 37

the upper larynx

Question 38

the superior laryngeal a branches from

Answer 38

superior thyroid a

Question 39

what does the superior laryngeal a run with

Answer 39

internal laryngeal n

Question 40

what does the inferior laryngeal a suppy

Answer 40

the lower larynx

Question 41

what does the inferior laryngeal artery branch from

Answer 41

inferior thyroid a from the thyrocervical trunk

Question 42

what does the inferior laryngeal a travel with

Answer 42

inferior laryngeal n

Question 43

the superior laryngeal n gives rise to

Answer 43

internal laryngeal n | external laryngeal n

Question 44

what nerve pierces the thyrohyoid membrane

Answer 44

internal laryngeal n

Question 45

what nerve circles the aorta or subclavian a

Answer 45

recurrent laryngeal n

Question 46

the recurrent laryngeal n becomes

Answer 46

the inferior laryngeal n posterior to the cricothyroid joint

Question 47

injury to internal laryngeal nn cause

Answer 47

sensory loss to superior larynx (enable food to more easily enter larynx

Question 48

injury to inferior laryngeal nn leads to

Answer 48

paralyzes mm ipsilateral and paparlysis of vocal fold ipsilateral hoarseness as vocal folds cannot meet in midline bilateral loss is total loss of voice