neck Flashcards
what are the borders of the neck
superior: mandible
inferior - c;avicle
posterior: anterior part of trapezius
anterior: midline
what are the two main triangles
posterior cervical triangle
anterior cervical triangle
What two triangles are in the posterior cervical triangle
occipital
supraclavicular
what four triangles are in the ACT
submental
submandibular
carotid
muscular
what are the borders of the PCT
anterior part of trapezius is posterior
posterior side of sternocleidomastoid is anterior
middle third of clavicle is inferior
what are the borders of the ACT
posterior is anterior SCM
anterior is midline
superior = mandible
what are borders of occipital triangle
posterior is trapezoid
anterior is SCM
inferior is inferior belly omohyoid muscle
what are borders of supraclavicular triangle
anterrior: SCM
infeiror: clavicle
posteriro is inferior belly of omohyoid ml
what are contents of PCT
external jugular vein
platysma
cervical plexus
spinal accessory nerve
what nerves make up cervical plexus
lesser occipital, C1
greater auricular, C2, C3
transverse cervical, C2, C3
supraclavicular, C2-C4
what does spinal accessory n innervate?
trapezius/SCM
what makes up floor of posterior triangle
splenius capitus, semispinalis capitus, levator scapulae, a, m, and p scalenes
deep contents of posterior cervical triangle
phrenic nerve brachial plexus dorsal scapular nerve transverse cervical artery suprascapular artery
boundaries of submandibular triangle
mandible
anterior : anterior belly of digastric
lateral is posterior belly of digastric
contents of submandibular triangle
submandibular gland, facial artery, hypoglosal nerve (CN XII)
boundaries of submental triangle
two anterior bellies of the digastric laterally and hyoid bone
contents of submental triangle
superficial lymph nodes
what are the external carotid branches within the carotid triangle
superior thyroid ascending pharyngeal lingual facial occipital
carotid triangle boundaries
posterior belly of digastric
superior belly of omohyoid
anteriro border of SCM
superficial contents of carotid
carotid sheath internal jugular vein internal carotid/common carotid artery vagus nerve ansa cervicalis infrahyoid muscles cervical sympathetic trunk
boundaries of muscular triangle
superior: superior belly of omohyoid
inferior: scm
medial: midline
contents of muscular triangle
infrahyoid muscles, thyroid gland, thyroid cartilage, cricoid cartilage and cricothyroid muscles and trachea
subclavian steal
narrowing or occlusion of left subclavian artery
virchow’s node
some chest and visceral cancers spread through thoracid duct which ends at lt. supraclavicular area
osteomeatal complex
narrow channel that provides mucociliary clearance and ventilation to the anterior ethmoid, maxillary and frontal sinuses
hoarseness
left recurrent laryngeal nerves
