| Term 
 
        | what is the venous angle? |  | Definition 
 
        | intersection of the internal jugular and the subclavian |  | 
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        | Term 
 
        | what is in the carotid shealth? |  | Definition 
 
        | common carotid artery, internal jugular vein, and vagus nerve |  | 
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        | Term 
 
        | what is the carotid body/sinus? innervated by?
 |  | Definition 
 
        | carotid body - chemoreceptor that monitors blood oxy levels. carotid sinus - baroreceptor that reacts to changes in arterial pressure; part of the internal carotid artery.
 innervated by glossopharyngeal nerve.
 Both located at carotid bifurcation.
 |  | 
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        | Term 
 
        | what do the parathyroid glands do? |  | Definition 
 
        | secrete parathormone which controls phosphorus and calcium blood levels |  | 
        |  | 
        
        | Term 
 
        | what do the thyroid glands do? |  | Definition 
 
        | produces iodine containing hormones - T3,4 which regulate metabolic rates. produces polypeptide hormone, calcitonin, to lower serum calcium levels.
 |  | 
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        | Term 
 
        | what do the internal and external branches of the superior laryngeal nerve innervate? |  | Definition 
 
        | Internal – gets mucous membranes above vocal cords External – gets cricothyroid muscle
 |  | 
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        | Term 
 
        | what do the recurrent laryngeal nerves innervate? |  | Definition 
 
        | gets mucous membranes below vocal cords and remaining larynx muscles |  | 
        |  |