layrnx anatomy Flashcards
at what vertebrae level is the larynx?
between c4-6
what happens at C6
larynx becomes trachea
where do the vocal cords attach?
between thyroid cartilage and vocal processes of arytenoid cartilages
space between tongue and epiglottis
vallecula
mucosa of larynx?
mainly resp epithelium except vocal cords( stratatfied squamous epithelium)
false vocal cords
superior (vestibular folds)
true vocal cords
inferior (vocal folds)
mucosa in larynx is supplied by?
vagus nerve
specifically what nerve supplies the superior vocal fold?
superiopr laryngeal branches of vagus
specifically what nerve supplies the inferior vocal fold?
recurrent laryngeal branch of vagus
what nerve gives both sensory and motor to larynx?
vagus
intrinsic muscles of larynx are supplied by?
vagus
which muscles tense the cartilages?
cricothyroid muscles (between thyroid and cricoid)
what muscles relax the cartilages?
thyro-arytenoid (pull arytenoid to thyroid)
which muscles adduct the cartilages?
lateral crico-arytenoid
AND
arytenoid muscles
rotate the arytenoids so vocal proccesses get closer together