Ch. 4 Anatomy Of Larynx (Exam 2) Flashcards
Framework of the larynx:
Hyoid bone, epiglottis, thyroid cartilage, arytenoid cartilages, corniculate cartilages, cuneiform cartilages, cricoid cartilage
The sound source (voicing)
Phonation
Only floating bone in the body, U-shaped, supports tongue, and serves as attachment point for nine muscles
Hyoid bone
Leaf-like cartilage that acts as a protective structure to cover the laryngeal opening during swallowing
Epiglottis
Largest of the laryngeal cartilages
Thyroid cartilage
Rides on the high backed upper surface of the cricoid cartilage; posterior point of attachment for the vocal folds, and provides attachments for the thyromuscularis and thyrovocalis
Arytenoid cartilages
2 processes of the arytenoid cartilages:
Vocal process and muscular process
One process of the arytenoid cartilages projects anteriorly toward the thyroid notch, vocal fold attached here
Vocal process of the arytenoid cartilage
One process of the arytenoid cartilage is the point of attachment for muscles that adduct and abduct the vocal folds
Muscular process of the arytenoid cartilages
Sits at the apex of the arytenoid cartilages; horn like shit
Corniculate cartilages
Paired wedge-shaped rods in bedded within the aryepiglottic folds
Cuneiform cartilages
Complete ring sitting on top of the trachea; “class ring”
Cricoid cartilage
Intrinsic ligaments connect the cartilages of the larynx and form the support structure for the cavity of the larynx as well as the vocal folds
Laryngeal membranes
(Paired) are the upper portion of the elastic membrane lining the larynx
Quadrangular membranes
Connects the thyroid cricoid and arytenoid cartilages
Conus elastics