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21 Cards in this Set
- Front
- Back
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What is the source of the recurrent laryngeal nerves?
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Vagus
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What is the course of the L recurrent laryngeal? R?
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L: around aortic arch
R: around subclavian |
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What are the functions of laryngeal physiology?
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Airway protection
Airway provision Phonation |
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What comes off the larynx?
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Respiraotry tract
Digestive tract |
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What are the primary sound source in phonation?
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True vocal folds
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What is the activites of all of the intrinsic muscles of the larynx?
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Adductors and/or tensors
(except the posterior cricoarytenoid abductors) |
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What gives motor innervation to the intrinsic muscles of the larynx?
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Recurrent laryngeal nerve
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What does the superior laryngeal nerve innervate?
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Cricothyroid muscles
Supraglottic sensation |
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What's the blood supply of the larynx?
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Superior laryngeal arteries (sup. thyroid)
Inferior laryngeal arteries (branches of thyrocervical trunks) |
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What are the movements of the larynx?
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Internal:
Adduction Abduction Vibratory Longitudinal |
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What are some signs of laryngeal problems?
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Aspiration
Dysphagia, odynophagia Stridor/dyspnea Dysphonia Otalgia (REFFERED PAIN) Neck mass |
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What are some examples of laryngeal pathology/
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Unilateral vocal fold paralysis
Laryngopharyngeal reflux |
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What are causes of a unilateral vocal fold paralysis?
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Injury to the recurrent laryngeal/vagus nerves
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What happens after damage to a recurrent laryngeal nerve?
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Lose motor input to the intrinsic laryngeal muscles on the side
Also, lose sensory outflow from a portion of the larynx |
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What are common causes of unilateral vocal fold paralysis?
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Tumors
Iatrogenic Idiopathic Others. |
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What are the symptoms of unilateral vocal fold paralysis?
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Dysphonia
Breathy/weakvoice Low endurance Dysphagia Dyspnea |
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What the therapies for unilateral vocal fold paralysis?
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Observation
Voice therapy Vocal fold mecialization Reinnervation (to restore tone) |
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What are some behavior tools to manage laryngopharyngeal reflux?
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Weight loss
Elevte the head of the bed Change dietary habits |
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What are typical symptoms of acid reflux laryngitis?
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Hoarseness that's worse in the AM
Chronic throat clearing "Awareness" of throat |
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What is the treatment for laryngopharyngeal reflux?
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Acid reduction
Pro-motility agents |
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What are the key components of voice production?
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Power source: lungs/air
Sound source;: true vocal folds Vocal tract: resonator |
