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37 Cards in this Set
- Front
- Back
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What is the significance of the retropharyngeal space?
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Retropharyngeal abscesses or infection may spread from terh neck into the posterior mediastinum through the retropharyngeal space to meninges
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State the two muscles which open the eustaschian tube!
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Tensor Veli palatini M
salpingopharyngeus M |
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State the innervation of the constrictor muscles
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CN X difficulty swallowing common following a stroke
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What is the only pharyngeal muscle not innervated by the CN X?
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Stylopharyngeaus M (CN IX)
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What is the only tounge muscle innervated by CN X?
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platoglossus
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State the colloquial term for the larynx?
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Voicebox
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At what vetebral level is the larynx situated?
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C3 - C6
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What cartilage is palpable inferior to the thyroid cartilage?
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Cricoid cartilage
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What is unique about the cricoid cartilage?
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It is the only complete ring of cartilage in the larynx
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The three unpaired cartilages of the larynx are:
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- epiglottic
- thyroid - cricoid |
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The 3 paired cartilages are:
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- arytenoid
-corniculate -cuneiform |
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What are the true vocal cords?
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The vocal cords which are comprised of the vocal ligaments and the conus elaticus
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What is the rima glottidis?
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It is the space b/w the vocal folds and the arytenoid cartilages'
It is the narrowest part of the laryngeal cavity |
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What 2 groups of muscle make-up the laryngeal musculature?
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The extrinsic and intrinsic muscles
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The extrinsic muscles...
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move the entire larynx
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The intrinsic muscles
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move the paired cartilages and vocal cords
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Describe the thyroids blood supply!
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External carotid artery --> superior thyroid artery, subclavian artery --> thyrocervical trunk --> inferior thyroid artery
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The inferior thryoid artery is a branch of what vessel?
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thryocervical trunk
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Action of cricothyroid tenses
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tightens the vocal cords
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Action of posterior cricoarytenoid
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abduction, opens the vocal cords
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action of lateral cricoarytenoid
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adduction of vocal cords
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action of transverse arytenoid
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adduction of the vocal cords
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action of vocalis & thyroarytenoid
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shortening (relaxing) of vocal cords
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___ innervates all intrinsic muscles of the larynx (except cricothyroid)
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Inferior Laryngeal Nerve
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The cricothyroid is innervated by
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External Laryngeal Nerve
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The left recurrent laryngeal nerve hooks around...
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Arch of aorta
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The right recurrent laryngeal nerve hooks around
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the right Brachocephalic vessels
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What is the lay mans term for the laryngeal prominence?
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The Adam's Apple
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What is the function of the epiglottis?
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The epiglottis falls down over the opening of the larynx during swallowing to stop food aspiration.
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Where is the cuneiform cartilage?
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The cuneiform cartilages are contained in the aryepiglottic folds.
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What are the aryepiglottic folds?
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Folds of tissue housing the cunefiform cartilage that forms the lateral border of the inlet to the larynx
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What are the false vocal cords?
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Vestibular folds/ vestibular ligaments
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Define a cricothyroidotomy
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This is an emergency procedure to establish an airway when your patient cannot be intubated.
You will incise the cricothyroid ligament and pass a tube into the trachea. |
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What embryonic remnant do we find in the area (around the arch of the aorta)?
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Ligamentum Arteriosum
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The 5 layers of the pharynx are (internal to external0
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1. pharynx
2. mucus membrane 3. constrictor muscles 4. buccopharyngeal fascia 5. retropharyngeal space |
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What is the conus elasticus?
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it is the elastic membrane b/w the vocal ligaments and the cricoid cartilage
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The 5 key players of interior of larynx:
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1. laryngeal cavity
2. laryngeal vestibule 3. laryngeal ventricles 4. infralgottic cavity 5. rima glottidis |
