Head and neck week 1 Flashcards
What are the typical features of cervical vertebrae?
bifid spinous process
triangular vertebral foramen
transverse foramina
what are the atypical features of C1?
no vertebral body no spinous process articular facet for dens groove for vertebral arteries 'lateral masses'
describe the articulation between the skull and the atlas
the occipital condyles articulate with the superior articular facets of the atlas allowing flexion and extension of the head - nodding
what is C2 (axis) atypical?
the dens (odontoid process)
describe the 3 key features of the mandible?
Ramus
body
angle
label the following
label:
what are the borders of the anterior triangle of the neck?
SCM
midline
body of mandible
what are the borders of the posterior triangle of the neck?
clavicle
SCM
trapezius
what does the mandible articulate with?
temporal bone
what attaches to the coronoid process of mandible
temporalis
what are the suprahyoid muscles?
mylohyoid
stylohyoid
digastric (anterior belly)
geniohyoid
what are the 4 infrahyoids
sternothyroid
thyrohyoid
sternohyoid
omohyoid
what are the contents of the anterior triangle?
hyoid bone suprahyoid and infrahyoid muscles submandibular gland common carotid artery and bifurcation IJV facial artery hypoglossal nerve vagus nerve accessory nerve ?glossopharyngeal and facial?
identify the triangles within the anterior triangle particularly
outline the submental, submandibular, carotid and muscular triangles
what 3 structures divide the anterior triangle into the 4 smaller ones?
hyoid, omohyoid, digastric
how is the posterior triangle divided?
what is within the posterior triangle?
posterior belly omohyoid
vetebral muscles (splenius capitis, leveator scapulae, ant/mid/post scalene)
EJV - pierces investing fascia and drains into subclavian vein
Subclavian artery - between ant/med scalene
CN XI (accessory)
cervical plexus - nerve point 1/3 from mastoid process along posterior border of SCM
Brachial plexus trunks - between and/med scalene
what is the black arrow pointing to?
nerve point of neck - for cervical plexus block