Term
| functions of thyroid and parathyroid? |
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Definition
thyroid functions in metabolism (highly vascularized so hormones can reach circulation)
parathyroid functions in calcium and phosph metab (often found at base of thyroid gland) |
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Term
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Definition
| losing the parathyroid glands. must leave at least one, you can autograft it into the forearm if necessary |
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Term
| location of the isthmus? what might connect from isthmus to hyoid |
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Definition
btwn the 2-4 tracheal rings
-a pyramidal lobe which is a remnant of the thyroglossal duct
***has to be cut across if an artificial airway is going to be made so important to establish if it is there |
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Term
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Definition
cartilagenous structure which contains an valve to close the respiratory tract. it also produces sound
between hyoid on top and pharynx on bottom |
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Term
| size between the laminal of the thyroid cartilage in men and women |
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Definition
more in women than men (120 v 90). this more acute angle is what makes the laryngeal prominence (adams apple) larger in men
laryngeal prominence is the convergence, the superior thyroid notch is the divergence |
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Term
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Definition
only cartilage that encircles the larynx
attached to arytenoid and thyroid cartilage superiorly |
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Term
| what attaches to the arytenoid cartilages? |
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Definition
vocalis muscle and vestibular ligaments on the anteriolateral sides
the vocal ligament attaches across the vocal processes
the posterior and lateral cricoarytenoid muscles at the muscular processes |
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Term
| the cricothyroid ligament |
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Definition
| forms the vocal ligament which is under the vocal folds (true vocal cords) |
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Term
| the quadrangular ligament |
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Definition
runs from the lateral aspect of the eipglottis to the anterolateral surface of arytenoid on the same side
the lower margin of this forms the vestibular ligament (the false vocal cord)
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Term
| laryngeal joints (the synovial joints of the larynx) |
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Definition
the cricothyroid joint is where the vocal ligaments lengthen
the cricoarytenoid joints is where the vocal ligaments AB and ADduct |
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Term
| what is the space between the tongue and the epiglottis where food can get stuck? |
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Definition
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Term
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Definition
ªContain numerous mucus glands that secrete mucus & lubricate vocal folds |
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Term
| rima glottidis and rima vestibulli |
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Definition
the rima glottidis actually is the opening the trachea and the vestibulli is lateral to it on each side
they open and close by the arytenoid cartilages |
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Term
| tissue difference between the true vocal cords and everything else below the epiglottis |
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Definition
the vocal cords are stratified squamous because the slough off and are resilient
everything else is respiratory epithelium |
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Term
| all the intrinsic muscles of the pharynx are innervated by the inferior larygeal nerve EXCEPT?? |
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Definition
the cricothyroid muscles. it is innervated by the exteral branch of the superior laryngeal.
it stretches and tenses the vocal cords |
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Term
| arterial blood supply to the larynx? |
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Definition
the superior laryngeal artery off the superior thyroid off the external carotid
the inferior laryngeal artery off the inferior thyroid branch from the thyrocerivcal trunk off the subclavian |
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Term
| sensory innervation of the larynx? |
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Definition
above the vocal cords, it's the internal branch of the superior laryngeal
inferior to the vocal cords, it's the recurrent |
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Term
| what does the posterior and lateral cricoarytenoid do? |
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Definition
the lateral ADducts the vocal cords
the posterior ABducts, stops phonation |
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Term
| how does one INCREASE pitch |
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Definition
| by contracting the cricothyroid muscles |
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Term
| what is the valsalva maneuver? |
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Definition
ªvestibule, rimavestibuli and glottidis are fully closed therefore airway is shut! |
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