Larynx Flashcards
Cricothyroid origin
Cricoid cartilage
Cricothyroid insertion
Thyroid cartilage
Cricothyroid innervation
External branch of superior laryngeal nerve (CN X)
Cricothyroid action
Increases tension on vocal fold
Thyroarytenoid origin
Thyroid cartilage
Thyroarytenoid insertion
Arytenoid cartilage
Thyroarytenoid innervation
Recurrent laryngeal nerve (CN X)
Thyroarytenoid action
Sphincter of laryngeal vestibule
Vocalis origin
Thyroid cartilage
Vocalis insertion
Arytenoid cartilage (vocal process)
Vocalis innervation
Recurrent laryngeal nerve (CN X)
Vocalis action
Adjusts tension of vocal fold
Posterior cricoarytenoid origin
Cricoid cartilage (posterior aspect)
Posterior cricoarytenoid insertion
Arytenoid cartilage (muscular process)
Posterior cricoarytenoid innervation
Recurrent laryngeal nerve (CN X)
Posterior cricoarytenoid action
Abducts vocal fold
Lateral cricoarytenoid origin
Cricoid cartilage (superior aspect)
Lateral cricoarytenoid insertion
Arytenoid cartilage (muscular process)
Lateral cricoarytenoid innervation
Recurrent laryngeal nerve (CN X)
Lateral cricoarytenoid action
Adducts vocal fold
Transverse arytenoid origin
Arytenoid cartilage
Transverse arytenoid insertion
Arytenoid cartilage
Transverse arytenoid innervation
Recurrent laryngeal nerve (CN X)
Transverse arytenoid action
Closes glottis
Oblique arytenoid origin
Arytenoid cartilage
Oblique arytenoid insertion
Arytenoid cartilage, aryepiglottic fold
Oblique arytenoid innervation
Recurrent laryngeal nerve (CN X)
Oblique arytenoid action
Constricts laryngeal inlet