Fascial layers of the neck
superficial fascia
encloses platysma
deep superficial fascia (really? yeah really)
investing
Encloses SCM and trapezius
Injury causes EJV to be held open - risk air embolism
continuous with thoracolumbar fascia
pretracheal
prevertebral
Leading to Tissue spaces in neck > Prevertebral space
carotid sheath
Contains common and internal carotid, IJV, vagus nerve
