Laryngeal Elevators and Depressors
This group of muscles have one attachment to a laryngeal cartilage
What are extrinsic muscles
primarily responsible for controlling sound production
opening, closing, tensing and relaxing the vocal folds
What are intrinsic laryngeal muscles
is the product of vibrating vocal folds that occurs within the larynx
what is phonation or voicing
Squamous epithelium, superficial lamina propria, intermediate lamina propria, deep lamina propria and thyroarytenoid muscle
What are the five layers of the vocal folds
entry to the larynx from the pharynx above
what is the aditus
consist of the sternohyoid and omohyoid muscles
What is infrahyoid muscles
Lateral Cricoarytenoid, Transverse arytenoid, and oblique arytenoid
What are the laryngeal adductors
Union between the tongue and laryngeal structures; loosely articulates with the superior cornu of the thyroid cartilage
What is the hyoid bone
complete ring that sits atop the trachea, articulates with thyroid via cricothyroid
what is the cricoid
space between the aditus and ventricular folds
What is the laryngeal vestibule
consist of the digastricus, sylohyoid, mylohyoid, geniohyoid, genioglossos, and hyoglossus muscles.
What are suprahyoid muscles
cricothyroid and thyrocalis
what are tensor muscles
thyroepiglottic musculature, superior thyroarytenoid, aryepiglottic muscle
What is auxiliary musculature in the larynx
largest laryngeal cartilage, articulates with the cricoid cartilage that allow it to rock backward and forward
thyroid cartilage
The space between the true and false ventricular folds
Laryngeal ventricle
Sternohyid, omohyoid, thyrohyoid, and sternothyroid
What are muscles that depress the larynx and hyoid
What are laryngeal depressors
Rocks arytenoid cartilage laterally; abducts vocal folds
What is the posterior cricoarytenoid
synovial joint that allows the cricoid and thyroid to
rotate and glide relative to each other aids in
Adjustment for changes in pitch
What is the cricothyroid joint
Arytenoid, corniculate and cuneiform cartilages
What are the three paired cartilages within the larynx
space between the vocal folds
what is the glottis
Often called strap muscles
digastricus, sylohyoid, mylohyoid, geniohyoid, genioglossos, and hyoglossus muscles.
intrinsic muscle that relaxes the vocal folds
what is the thyromuscularis
This synovial joint allows rocking, gliding and perhaps minimal rotation. The rocking action allows the vocal folds to approximate
What is the cricoarytenoid joint
Name 3 deficits are associated with Tracheotomy
airway pressure changes, expiratory speaking valves, deceased laryngeal elevation, glottic closure, pharyngeal transit, aspiration, asp. pneumonia, dysphagia.
lateral walls of the vocal folds
what are the aryepiglottic folds