Larynx and Alimentary Structures Flashcards
What structures would you puncture if a knife went into zone III of the neck?
branches of external carotid a.
internal carotid
vertebral a.
internal jugular facial veins
Zone II: knife fight problems
common carotids
carodid bifurcation
jugular veins
zone 1: knife fight problems
subclavian vessels
lower portion of common carotid
vertebral arteries
jugular veins
Define the area of zone 1
beginning @ angle of mandible
Pharyngeal A. 1
tensor tympani tensor veil palatini muscles of mastication mylohoid anterior belly of digastric
malleus and incus
Meckel’s cartilage
V2/V3 innervation
PA 2
Muscles of facial expression
posterior belly of digastric
stapedius
stylohyoid
stapes
styloid process
lesser cornu of hyoid
upper part of hyoid
CN VII
PA 3
Glossopharyngeal N (IX) stylopharyngeus
greater cornu of hyoid
lower part of hyoid
4/6th PA
Superior Laryngeal branch of vagus
recurrent laryngeal branch of vagus
thryoid cartilage cricoid cartilage
arytenoid cartilage
corniculate cartilage
cuneiform cartilage
Intrinsic muscles of the larynx
cricothyroid thryoarytenoid vocalis posterior cricoarytenoid lateral cricoarytenoid transverse and oblique arytenoids
Which muscle stretches and tenses the vocal ligaments?
cricothyroid
which abducts the vocal folds?
posterior crico-arytenoid
which adducts vocal folds?
lateral crico-arytenoid
which relaxes the vocal ligament?
thryo-arytenoid
which relaxes the posterior vocal lig, while maintaining tension of anterior pt?
vocalis
