Head and neck: triangles Flashcards
What 4 parts make up the anterior triangle?
submental
submandibular
muscular
carotid
What 2 parts make up the posterior triangle?
occipital
supraclavicular
What are the bounds of the posterior triangle?
SCM
Clavicle
trapezius
What are the subdivisions of the posterior triangle?
occipital triangle
omoclavicular triangle
What are the bounds of the occipital triangle?
trapezius
SCM
inferior belly of omohyoid
what does the occipital triangle contain?
external jugular vein
cervical plexus
accessory nerve
trunks of brachial plexus
transverse cervical artery
cervical lymph nodes
What are the bounds of the omoclavicular triangle?
SCM
inferior belly of omohyoid
clavicle
What does the omoclavicular triangle contain?
supraclavicular lymph nodes
subclavian arteries and veins
suprascapular artery
What are the bounds of the anterior triangle?
midline of neck
SCM
inferior border of mandible
what are the subdivisions of the anterior triangle?
submental triangle
submandibular triangle
carotid triangle
muscular triangle
What are the bounds of the submandibular triangle?
ant. belly of digastric
post belly of digastric
inferior border of mandible
What does the submandibular triangle contain?
submandibular gland
submandibular lymph nodes
hypoglossal nerve
mylohyoid nerve
facial artery and vein
What are the bounds of the carotid triangle?
superior belly of omohyoid
SCM
posterior belly of digastric
What does the carotid triangle contain?
carotid sheath - all carotid arteries, internal jugular veins, vagus nerve
hypoglossal nerve
accessory nerve
thyroid gland
larynx
deep cervical lymph node
superior root of ansa cervicalis
cervical plexus
what are the bounds of the muscular triangle
superior belly of omohyoid
SCM
sternohyoid
