Root of Neck Flashcards
anterior boundary of root of neck
top of manubrium and border of clavicle
posterior border of the root of neck
body of T1 and superior margin of scapula to corcoid process
lateral border of the root of neck
first pair of ribs and costal cartilages
inferior border of root of neck
superior thoracic aperture
form of the cupola
cupola is top of the lung which sits in the 1st rib 2.5cm above middle third of clavicle
which layers cover the cupola
pleural layers : cervical and visceral
suprapleural layer/membrane
what is the cervical pleura
covers cupola
a superior continuation of costal and mediastinal parts of the parietal pleura
what is the visceral pleura
covers cupola of lung deep to the cervical pleura - there is a pleural cavity between them
touches the lung
what is the suprapleural membrane (sibsons faschia)
reinforces the other pleural layers
is an extension of the endothoracic faschia and attached to the internal surface of rib 1 and transverse process of C7
location of subclavian artery
posterior to sternoclavicular joint and the subclavian artery
where does the subclavian artery turn to the axillary artery
level of rib 1
what are the 5 trunks of the subclavian artery in order of when they branch
vertebral
thyrocervical
internal thoracic
costocervical
dorsal scapular
which muscle is of relevance to the subclavian artery
anterior scalene
subclavian is split into ; prescalene, retroscalene and postscalane parts
which part of the subclavaian artery lies anteior to the brachial plexus
post scalene part
course of vertebral artery
branches from prescalaene part of subclavian
ascends as cervical part into foramen transversarium where it becomes the vertebral part and ascends C1-6
exits foramen transversarium into foramen magnum where it becomes the basilar artery - the R and L basilar join and contribute to the circle of Willis
what are the branches of the thyrocervical trunk
ITS
inferior thyroid
transverse cervical
suprascapular
what is the largest and primary visceral artery of the neck
inferior thyroid branch of thyrocervical trunk
what does the inferior thyroid artery supply
thyroid gland
larynx
oesophagus
parathyroid
trachea
adjacent muscles
what branches off the inferior thyroid artery
ascending cervical artery
what does the ascending cervical artery supply
prevertebral muscles and spinal cord
what are the branches of the transverse cervical branch of the thyrocervical trunk
superficial branch - trapezius
deep branch - rhomboids and scapula
what does the suprascapular branch of thyrocervical trunk supply
supraspinatus fossa
what is the course of the internal thoracic trunk of subclavian artery and what it supplies
descends into the thoracic cavity to 6th intercostal space and becomes intercostal arteries which supplies the intercostal spaces
what are the 2 branches of the costocervical trunk of subclavian and what do they supply
supreme intercostal artery which becomes the posterior intercostal artery which supplies rib 1 and 1-2 intercostal spaces
deep cervical artery which supplies the deep cervical muscles
- this links with the occipital artery
