lecture 24

Question 1

what are the only functionally mobile points of the larynx

Answer 1

cricothyroid and cricoarytenoid joints

Question 2

cricothyroid and cricoarytenoid joints

Answer 2

only functionally mobile points of larynx

Question 3

cricothyroid joint

Answer 3

• cricoid cartilage and inferior cornu of thyroid cartilage
• gliding zone
• thyroid rocks down in front
• thyroid glides forward/backward
• change in vocal pitch

Question 4

cricyartyenoid joint

Answer 4

• cricoid and arytenoid cartilages
• gliding joint
• vocal processes rock toward each other - vocal folds approximate
• arytenoids glide which changes vocal fold length
• arytenoids rotate which permits abduction

Question 5

what happens when arytenoids glide

Answer 5

changes vocal fold length

Question 6

what happens when arytenoids rotate

Answer 6

permits abduction

Question 7

aditus

Answer 7

entry to larynx

Question 8

vestibule

Answer 8

space between aditus and ventricular folds (false vocal folds)

Question 9

laryngeal ventricle

Answer 9

middle space of larynx

Question 10

where is laryngeal ventricle

Answer 10

lies between margins of false vocal folds and true vocal folds

Question 11

which are extrinsic ligaments

Answer 11

thyrohyoid membran, lateral thyrohyoid ligament , median thyrohyoid ligament, hyoepiglottic/thyroepiglottic ligament, cricotracheal ligament

Question 12

extrinsic muscles connect what

Answer 12

the larynx and hyoid bone

Question 13

extrinsic

Answer 13

connects larynx to other structures

Question 14

Thyrohyoid membrane

Answer 14

between the greater cornu of the hyoid and thyroid laminae

Question 15

Lateral Thyrohyoid ligament

Answer 15

superior cornu of the thyroid to posterior tip of the greater cornu hyoid

Question 16

median thyrohyoid ligament

Answer 16

from corpus hyoid to thyroid notch

Question 17

hyoepiglottic ligament/thyroepiglottic ligament

Answer 17

attach the epiglottis to hyoid and inner thyroid cartilage just below the notch

Question 18

cricotracheal ligament

Answer 18

attaches trachea to larynx

Question 19

what do intrinsic ligaments do

Answer 19

connect cartilages of larynx and form the support structure for the cavity of the larynx and vocal folds

Question 20

quandrangular membranes

Answer 20

• form false vocal folds
• Originate at inner thyroid angle and sides of epiglottis and form an upper cone that narrows and terminates at the arytenoid and corniculate cartilages

Question 21

aryepiglottic muscles

Answer 21

• form side of epiglottis to arytenoid
• form upper margin of quadrangular membrane
• form aryepiglottic folds
• pyriform sinus is space between aryepiglottic fold and thyroid cartilage

Question 22

what are the intrinsic ligaments

Answer 22

quandrangular membranes and aryepiglottic muscles

Question 23

aryepiglottic muscles forms what three things

Answer 23

side of epiglottis to arytenoid, upper margin of quadrangular membrane, aryepiglottic folds

Question 24

what are pyriform sinuses

Answer 24

space between aryepiglottic fold and thyroid cartilage

Question 25

what are five layers of vocal folds

Answer 25

epithelium, superficial lamina propria, intermediate lamina propria, deep lamina propria, thyroarytenoid muscle

Question 26

protective layer of epithelium

Answer 26

glistening white appearance, protective

Question 27

superficial lamina propria

Answer 27

elastin fibers, stretched, cushions

Question 28

intermediate lamina propria

Answer 28

elastin fibers running in an A-P direction, provide elasticity and strength

Question 29

deep lamina propria

Answer 29

collagen fibers that prohibit extension

Question 30

intermediate and deep lamina propria combine to make what

Answer 30

the vocal ligament; stiffness and support

Question 31

thyroarytenoid muscle

Answer 31

active element of vocal folds

Question 32

mucosal lining

Answer 32

combination of the epithelial lining and first layer