Head and Neck 2 Flashcards
contents of the carotid triangle
bifurcation of common carotid artery, internal jugular vein, vagus n, hypoglossal n
cn XII branches into this at about the greater horn of the hyoid bone
nerve to thyrohyoid
innervates most strap muscles
ansa cervicalis
thyrohyoid is supplied by blank
nerve to thyrohyoid (C1)
geniohyoid nerve supply
nerve to geniohyoid (C1)
carotid sheath contents
vagus nerve, internal jugular vein, common carotid
vagus nerve gives off this branch which branches into these two branches
superior laryngeal, internal laryngeal, external laryngeal
larger laryngeal branch
internal laryngeal nerve
medial surface of bifurcation of common carotid that responds to o2 and co2 concentrations
carotid body (chemoreceptor)
a dilation at beginning of internal and end of common carotids, sensitive to pressure
carotid sinus (mechanoreceptor)
carotid body and sinus are supplied by these nerves
CN IX / X
branches of external carotid artery
facial, occipital, lingual, ascending pharyngeal, superior thyroid, superior laryngeal
boundaries of submental triangle
body of hyoid, right and left anterior bellies of digastric muscles, mylohyoid muscle (forms floor)
boundaries of submandibular triangle
inferior border of mandible, anterior belly of digastric, posterior digastric, mylohyoid (floor)
things in submandibular triangle
submandibular gland
junctional area between the thorax and neck which is basically the blank
root of neck, superior thoracic inlet
important structures in root of the neck
thoracic duct, vertebral artery, thyrocervical trunk, internal thoracic artery, vagus nerve, phrenic nerve
this gland is on the side of the face and makes saliva and digestive juices
parotid gland
parotid gland gets postganglionic parasympathetic fibers from blank
auriculotemporal nerve
blank glands have ducts
exocrine
blank gland is exocrine
parotid
four things that traverse parotid gland
retromandibular vein, external carotid artery, superficial temporal artery(terminal branch of external carotid), maxillary artery (terminal branch of external carotid)
all lymphatics from head and neck drain into the blank
deep cervical lymph nodes
drains parotid area, lobe of ear, neck
superficial cervical lymph nodes
deep cervical lymph nodes on the left drain into the blank
thoracic duct
deep cervical lymph nodes on the right drain into the blank
right lymphatic duct
needle cricothyroidotomy, tracheostomy, tracheotomy, subclavian vein puncture
ok
boundaries of carotid triangle
superior belly of omohyoid, posterior belly of digastric, anterior border of scm
