Phonation Framework (1)

respiration provides

respiration provides

energy

phonation provides

the voice

an unpaired, musculocartilaginous structure located at midline

larynx

the larynx is situated between the

hyoid bone and trachea

larynx is adjacent to __ in adults

C4-C6

thoracic fixation. . .

prevents air from escaping lungs

First biological function of the larynx

thoracic fixation

second biological function of larynx

prevents foreign substances from entering trachea

third biological function of larynx

forcefully expels foreign substances (aka coughing)

what is NOT a biological function the the larynx

speaking

speech is

an overlaid function

most inferior of laryngeal cartilages

cricoid

largest of laryngeal cartilages; articulates with cricoid by means of cricothyroid joint

thyroid

sit atop cricoid

arytenoid cartilages

sit atop arytenoids

corniculates

embedded in aryepiglottic folds

cuneiform

between superior thyroid horns and hyoid bone

lateral thyrohyoid ligament

thicker medial portion

median thyrohyoid ligament

small nodule embedded in lateral thyrohyoid ligament

triticeal cartilage

point of attachment to the tongue

gloss

attaches epiglottis to inner thyroid cartilage

thyroepiglottic ligament

connects lower border of cricoid with upper border of first tracheal ring

cricotracheal ligament

upper portion of intrinsic membranes

quadrangular membrane and aryepiglottic folds

lower portion of intrinsic membranes

conus elasticus and vocal ligmment

superior margins of quadrangular membranes

aryepiglottic folds

___ cartilages are embedded within aryepiglottic folds

cuneiform

deep depression lateral to aditus laryngis

pyriform sinus

midline structure extending from superior border of cricoid arch to inferior border of thyroid at the angle

medial/anterior cricothyroid ligament

thinner, superior border of cricoid. Course superiorly and laterally, extending from vocal processes to angle of thyroid; free, thickened margins are vocal ligaments

lateral cricothyroid membranes

vocal ligaments have common point of attachment on thyroid

macula flava anterior

vocal folds have __ layers

5

deepest of the vocal fold layers

muscle

first layer of vocal folds (most superficial)

squamous epithelium

second layer of vocal folds

superficial lamina propria

third layer of vocal folds

intermediate lamina propria

fourth layer of vocal folds

deep lamina propria

fifth layer of vocal folds

thyroarytenoid muscle

intermediate lamina propria and deep lamina propria combine to make the ____

vocal ligament

medial muscle of the thyroarytenoid

thyrovocalis

lateral muscle of the thyroarytenoid

thyromuscularis