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test 2
Larynx, Laryngopharynx, & Speech
Question | Answer |
---|---|
the larynx is the upper part of the respiratory tract located between the ___ and the ___? | pharynx and trachea |
what is the main function of the larynx? | phonatoin-vibrating of the vocal cords |
when we are not speaking the larynx acts as a _____ to the lungs? | airway |
what are the 9 cartilages that compose the laryngeal skeleton? | 1.thyroid cartilagae 2.cricoid cartilage 3.epiglotic cartilage 3.arytenoid cartilage(2) 4.cuniform cartilage(2) 4.corniculate cartilage(2) |
what is the anatomical structure that is known as the "adam's apple" | laryngeal prominence of the thyroid cartilage |
why do males typically have a lower tone of voice and a more prominent laryngeal prominence? | because of the angle that the laminae meet. In males it meets at a 90degree angle. |
what strucute connnects the superior borders of the thyroid cartilage and superior horns to the hyoid bone? | thyroid membrane |
out of the thyroid and the rings of the trachea which is the only complete ring of cartilage? | cricoid cartilage |
what structure is leaf like and attaches to the back of the thyroid cartilage | epiglotic cartilage which is than covered with a mucous membrane to be known as the epiglottis |
the epiglottis is pushed back and down during swallowing covering the ______ to prevent food from entering | laryngeal inlet |
landmarks during laryngoscopy are the ___ and ___? | corniculate and cuneiform cartilages |
what are the two pairs of lateral folds internally | vestibular fold(false vocal cords) and the vocal fold(true vocal cords) |
the area between the true and false folds is the? | laryngeal ventricle |
the area inferior to the vocal folds is known as the? | infraglottic cavity |
what is the general shape of the rima glottidis for a whisper?normal respiration? | whisper=close together almost closednormal respiration=neutral slightly opened |
how many intrinsic laryngeal muscles are there? | seven |
what are the seven intrinsic laryngeal muscles? | cricothyroid-posterior cricoartynoid-lateral cricoartynoid-transverse arytenoid-oblique arytenoid-vocalis-thyroarytenoid |
what are the only intrinsic laryngeal muscles that ABDUCT the vocal folds?what do the others do? | posterior cricoartynoid. all others adduct the vocal folds |
which muscle adjusts the vocal ligament by selectively tensing and relaxing them during speech and singing? | vocalis m |
the intrinsic laryngeal muscles and vocal folds come from which cranial nerve | CN 10-vagus |
which branch of the vagus n. innervates all intrinsic muscles except for the cricothyroid? | recurrent laryngeal |
which two nerves are the main source for arterial supply to the larynx? | superior laryngeal a. and the inferior laryngeal a. |
all the arteries branch from the ___ artery? | external carotid |
what is the pathway of venous drainage from the superior laryngeal veins? | superior laryngeal veins->superior thyroid vv.->internal jugular vein |
what is the pathway of venous drainage from the inferior laryngeal vv.? | inferior laryngeal vv.->inferior thyroid vv.->brachiocephalic vein |