Neck: Larynx

Question 1

What is the attachment of the oblique arytenoid muscles

Answer 1

Posterior surface of arytenoids to aryepiglottic fold

Question 2

What is the action of the oblique arytenoid muscles

Answer 2

narrow the laryngeal inlet

Question 3

What is the innervation of the oblique arytenoid muscle

Answer 3

recurrent laryngeal

Question 4

What muscles will attach to the oblique line of the thyroid cartilage

Answer 4

inferior pharyngeal constrictor
sternothyroid
thyrohyoid

Question 5

What type of cartilage is the epiglottis composed of

Answer 5

elastic cartilage

Question 6

What are the extrinsic ligaments of the thyroid cartilage

Answer 6

thyrohyoid membrane
median thyrohyoid ligament
lateral thyrohyoid ligament
tritceal cartilage

Question 7

What will travel through the hold in the thyrohyoid membrane

Answer 7

superior laryngeal artery

internal laryngeal nerve

Question 8

What are the intrinsic ligaments of the cricoid cartilage

Answer 8

cricothyroid membrane

quadrangular membrane

Question 9

What structures will form the cricothyroid joint

Answer 9

inferior horns of thyroid cartilage and cricoid cartilages

Question 10

What type of joint is the cricothyroid joint

Answer 10

synovial joint

Question 11

How will movement at the cricothyroid joint affect the vocal ligament

Answer 11

thyroid cartilage rocks

tilting forward elongates the vocal ligament: increases pitch

Question 12

What structures form the cricoarytenoid joint

Answer 12

arytenoid cartilages

cricoid cartilage

Question 13

What type of joint is the cricoarytenoid joint

Answer 13

synovial joint

Question 14

What movements are seen at the cricoarytenoid joint

Answer 14

sliding mediolaterally
rotation
abduction
adduction of vocal ligaments

Question 15

What is the outlet of the larynx continuous with

Answer 15

trachea

Question 16

WHere is the vestibule of the larynx found

Answer 16

between inlet and vestibular folds

Question 17

Where is the infraglottic space found

Answer 17

between vocal folds and the outlet

Question 18

Where are the ventricles of the larynx found

Answer 18

bulging out laterally between the vestibular and vocal folds

Question 19

What is the rima vestibulle

Answer 19

space between the two vestibular folds

Question 20

What is the rima glottis

Answer 20

opening between the vocal folds

Question 21

What is the function of the cricothyroid muscle

Answer 21

increases pitch of the voice

causes forward tilting of the thyroid cartilage, thus elongating the vocal cord
tightens vocal cords

Question 22

What is the innervation of the cricothyroid muscle

Answer 22

external laryngeal n

Question 23

What is the innervation of the posterior cricoarytenoid muscles

Answer 23

recurrent laryngeal n

Question 24

What is the action of the posterior cricoarytenoid muscles

Answer 24

abduction and external rotation of the arytenoids

opens the rima glottis

Question 25

What is the action of the lateral cricoarytenoid muscles

Answer 25

internal rotation of the arytenoids closing of rima glottis

Question 26

What is the innervation of the lateral cricoarytenoid muscles

Answer 26

recurrent laryngeal branch

Question 27

What are the attachments of the vocalis muscle

Answer 27

vocal processes of arytenoids, vocal ligament, thyroid angles

Question 28

What is the action of the vocalis muscle

Answer 28

adjust tension of the vocal folds

Question 29

What is the innervation of the vocalis muscle

Answer 29

recurrent laryngeal branch

Question 30

What is the attachment of the transverse arytenoid muscle

Answer 30

posterior surfaces of arytenoids

Question 31

What is the function of the transverse arytenoid muscle

Answer 31

adduction of the arytenoids

Question 32

What is the innervation of the transverse arytenoid muscle

Answer 32

recurrent laryngeal branch

Question 33

What is the attachment of the thyroarytenoid muscles

Answer 33

thyroid angle, arytenoid cartilages, aryepiglottic folds

Question 34

What is the action of the thyroarytenoid muscles

Answer 34

narrows larngeal inlet and vestibule

Question 35

What is the innervation of the thyroarytenoid muscles

Answer 35

recurrent laryngeal branch

Question 36

What is function of cricothyroid

Answer 36

stretches the vocal cords

Question 37

What is the function of posterior cricoarytenoid

Answer 37

opens the rima glottis

Question 38

What is the function of lateral cricoarytenoid

Answer 38

closes the rima glottis

Question 39

What is function of vocalis

Answer 39

tenses vocal cord

Question 40

What is the function of oblique and transverse arytenoids

Answer 40

closure of rima glottis

Question 41

What is function of thyroarytenoidus

Answer 41

constriction of vestibule

Question 42

What are the main arteries that will supply the laryynx

Answer 42

superior laryngeal superior thyroid artery inferior laryngeal artery

Question 43

What are the main veins that will drain the larynx

Answer 43

superior middle and inferior thyroid veins

Question 44

What are the branches of the superior laryngeal nerve

Answer 44

internal laryngeal | external laryngeal

Question 45

What does the internal laryngeal nerve innervate

Answer 45

laryngeal cavity down to the vocal folds (sensory)

Question 46

What does the external laryngeal nerve innervate

Answer 46

cricothyroid muscle and inferior pharyngeal constrictor

Question 47

What do the recurrent laryngeal nerves innervate

Answer 47

all the laryngeal muscles except the cricothyroid muscle | supplies laryngeal cavity below the vocal folds (sensory)

Question 48

Where is the hyoid bone found

Answer 48

C3-C5 when standing

Question 49

What fascia is the larynx covered by

Answer 49

superficial and pretracheal fascia

Question 50

What structures around the larynx are palpable

Answer 50

laryngeal prominence cricoid cartilage cricothyroid ligament

Question 51

What is the clinical significance of the piriform recess

Answer 51

common place for things to get lodged

Question 52

What nerve is found in the area of the piriform recess

Answer 52

internal laryngeal nerve lies under the mucosa

Question 53

What is the lymphatic drainage of the larynx

Answer 53

suprglottic: Level II infraglottic: lower deep cervical IV, prelaryngeal, pretracheal

Question 54

What layers will be cut in a tracheotomy

Answer 54

``` skin superficial fascia investing fascia infrahyoid fascia pretracheal fascia ```