Unit 3 Pt 1 Flashcards
Phonation
Product of vibrating vocal folds.
How does respiration help phonation.
It’s the energy source that allows for phonation.
2 types of sounds
Voiced and voiceless.
What creates sounds
Only with the use of the vocal folds will you produce a voiced sound
Four facts about the Larynx
Located at the superior end of the trachea, protects lower passageway for foreign materials, used to hold air in lungs, and generates sound.
Framework of Larynx
Varies in individuals, men usually have a longer larynx.
Five parts of the skeleton of the larynx
Thyroid cartilage, cricoid cartilage, arytenoid cartilage, corniculate cartilage, and epiglottis.
Thyroid cartilage
Largest of the laryngeal cartilages, and articulates inferiorly with cricoid cartilage.
Five parts of the thyroid cartilage
Laminae, angle, notch, prominence, and Cornu.
Thyroid laminae
Quadrilateral plates
Thyroid angle
Point at which the two thyroid laminae come together
Thyroid notch
Superior most point of the thyroid angle
Thyroid prominence
Found at the base of the thyroid notch, and flares out to protect anterior and lateral larynx
Cornu
Found on the posterior portion of thyroid
Superior Cornu
Points towards hyoid bone
Inferior Cornu
Rests on cricoid cartilage
Cricoid cartilage
Most inferior cartilage of larynx, and unpaired signet ring shaped.
2 parts of cricoid cartilage
Arch and posterior quadrate lamina
Arch
Low narrow portion in front and provides clearance for the vocal folds.
Posterior quadrate lamina
Wide and thick portion in back, and provides point of articulation for arytenoid cartilages.
Cricothyroid joint
Found between thyroid and cricoid cartilages, point of articulation is the articular facets on cricoid cartilage and the inferior Cornu of the thyroid cartilage, and provides rotation and pivoting.
