Quiz 1 Flashcards
Trachea
Windpipe, connects lungs to the larynx
Diaphragm
Major muscle of inspiration
Intercostal muscles
Muscles of the rib cage that facilitate expiration
Glottis
The space between the vocal folds
Anterior commissure
Anterior juncture of the true vocal folds
Posterior commissure
Posterior junction of the true vocal folds
Supraglottic area
Area above the true vocal folds
Subglottic area
Area below the true vocal folds
Abduction
Open; away from midline
Adduction
Closed; toward midline
Thyroid cartilage
Largest cartilage in the larynx. Fused thyroid plates form thyroid notch (Adam’s apple)
Cricoid cartilage
Cartilage found below the thyroid cartilage and above the trachea
Arytenoid cartilages
Pair of pyramid shaped cartilages that serve as posterior attachment of the vocal folds. Movement is responsible for abduction and adduction of the vocal folds
Muscular process
The extensions where the posterior and lateral cricoarytenoid muscles attach
Vocal process
The anterior and medial extension of the arytenoid cartilages, where the posterior vocal fold ligament attaches via a tendon-like structure called the macula flava
Epiglottis
The superior part of the larynx, located posterior to the hyoid bone and base of the tongue
Corniculate cartilages
Paired elastic cartilages mounted on top of the arytenoid cartilages
Cuneiform cartilages
Paired elastic cartilages embedded in the aryepiglottic muscle/fold
Cricothyroid joint
A synovial joint formed between the cricoid and arytenoid cartilages
Aryepiglottic folds
The false cords
Laryngeal vestibule
The space between the laryngeal side of the epiglottis, aryepiglottic folds, vocal folds, and arytenoids
Laryngeal ventricle
Space between the ventricular folds and the true vocal folds
Vallecula
Space between tongue and epiglottis
Thyroarytenoid muscle
Muscle within the vocal folds
Posterior cricoarytenoid muscle (PCA)
An intrinsic laryngeal muscle that when contracted abducts the vocal folds
Lateral cricoarytenoid muscle (LCA)
An intrinsic laryngeal muscle that serves to adduct the vocal folds
Cricothyroid muscle
Intrinsic laryngeal muscle primarily increasing vocal fold length and the elevation of vocal pitch
Interarytenoid muscles
Muscles connecting the arytenoids that adduct the vocal folds when contracted
Recurrent laryngeal nerves
Branch of vagus nerve that innervates the intrinsic laryngeal muscles
Suprahyoid muscles
Elevate the hyoid bone and larynx (digastric, anterior and posterior bellies, mylohyoid, geniohyoid, stylohyoid)
Infrahyoid muscles
Primarily depress the hyoid and larynx (sternohyoid, sternothyroid, omohyoid, thyrohyoid)
