Neck and Larynx Flashcards
kah sound testing?
soft palate elevation, CNX
la sound testing?
tongue function, CN XII hypoglossal
ma sound testing?
opening mouth, CN VII buccal branch innervating orbicularis oris
blood supply of larynx?
superior laryngeal artery and inferior laryngeal arteries, come off superior and inferior thyroid arteries
posterior auricular, lesser occipital, transverse cervical, and accessory nerve make up what structure?
Erb’s point, for ansethesiologist
acessory spinal nerve (CN XI) innervates what?
SCM and trapezius
subclavian vein, phrenic nerve, vagus nerve, and sympathetic chain are _______ to the anterior scalene
anterior
what structures run posterior to the anterior scalene?
subclavian artery and brachial plexus
3 anterior branches off external carotid artery?
superior thyroid, lingual, facial arteries
2 posterior branches off external carotid artery?
occipital, posterior auricular
4 suprahyoid muscles?
mylohyoid, geniohyoid, stylohyoid, digastric
innervation of mylohyoid?
CN V3
innervation of geniohyoid?
C1 via hypoglossal nerve
innervation of stylohyoid?
CN VII facial
innervation of anterior digastric?
CN V3 (mandibular trigeminal)
innervation of posterior digastric?
CN VII facial
what innervates the 4 infrahyoid muscles?
ansa cervicalis, off C1/2/3
in carotid sheath the internal carotid is _______, internal jugular vein _________, and vagus nerve posterior
medial, lateral
massaging carotid sinus increased pressure in vessel, increasing parasympathetic outflow by way of CN _____ to reflexively cause CN _____ to slow heart
IX, X
to place central line, push _____ medially and inject 45 degrees into jugular vein
carotid
tumors of lower lip and tongue often metastasize to _______ lymph nodes
submental
blood supply to thyroid gland?
superior thyroid artery (from external carotid) and inferior thyroid (from thyrocervical trunk)
superior cervical ganglion at ____
C2
sternothyroid, thyrohyoid, and inferior constrictor all attach to
thyroid cartilage
site of attachment for vocal cords?
arytenoid cartilages
intrinsic muscles of the larynx all innervated by ___________ except cricothyroid by external laryngeal
recurrent laryngeal nerve (CNX)
only major abductor of vocal cords?
posterior cricoarytenoid muscles
what muscle increases tension on vocal cords, for singing high notes?
cricothyroid
the _________ helps close vestibule by pulling down the epiglottic cartilage
thyroepiglottic muscle
mucosa of supraglottic cavity innervated by?
internal laryngeal nerve (CNX), branch of superior laryngeal
mucosa of infraglottic cavity innervated by?
recurrent laryngeal, CNX
vocal cord paralysis due to loss of ______ giving an easily fatiguing voice
superior laryngeal nerve
