Fig. 2. Right cadaveric dissection noting the CSN. Note its origin from the CN IX. Also, observe the posterior belly of the digastric muscle (reflected laterally), the hypoglossal nerve (reflected laterally), the IJV, ICA, and ECA (cadaveric dissection from Tulane University). CSN, carotid sinus nerve; CN IX, glossopharyngeal nerve; IJV, internal jugular vein; ICA, internal carotid artery; ECA, external carotid artery; PBD, posterior belly of the digastric muscle; CN XII, hypoglossal nerve.
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