DEEP CERVICAL FASCIA
- deep cervical fascia
- pretracheal fascia
- encloses and suspends thyroid gland
- attachments
- superiorly
- hyoid bone in median plane
- oblique line of thyroid cartilage laterally
- cricoid cartilage
- inferiorly
- encloses inferiior thyroid veins
- blends with arch of aorta and pericardium
- on either side
- forms front of carotid sheath
- buccopharyngeal fascia
- covers superior constrictor muscle externally
- extends on superficial aspect of buccinator muscle
- pharyngobasilar fascia
- thickened between
- upper border of superior constrictor
- base of skull
- prevertebral fascia
- lies infront of prevertebral muscles
- attachments
- superiorly
- attached to base of skull
- inferiorly
- extends in to superior mediastinum to split in to
- anterior
- blends with buccopharyngeal fascia
- posterior layers
- attached to body of T4 vertebra
- also attached to anterior longitudinal ligament
- laterally
- lies deep to trapezius muscle
- attached to fascia of sternocleidomastoid
- anteriorly
- separated from pharynx and buccopharyngeal fascia by
- retropharyngeal space
- retropharyngeal abscess
- lower part prevertebral fascia and buccopharyngeal fascia fuse
- other features
- cervical plexus and brachial plexus behind this fascia
- axillary sheath
- investing layer
- deep to platysma
- forms roof of posterior triangle
- attachments
- superiorly
- external occipital protuberance
- superior nuchal line
- mastoid process, styloid process
- external acoustic meatus , tympanic plate
- base of mandible
- superificial lamina
- splits fo form parotid fascia
- inferiorly
- spine of scapula
- acromion process
- clavicle
- manubrium
- anteriorly
- symphysis menti
- hyoid bone
- other features
- splits to enclose
- muscles
- trapezius
- sternocleidomastoid
- salivary gland
- submandibular
- while cutting this gland external carotid artery must be secured
- parotid gland
- parotid swelling are painful
- space
- suprasternal
- containsright and left sternocleidomastoid heads
- jugular venous arch
- interclavicular ligament
- lymph node
- supraclavicular
- traversed by
- external jugular vein
- clinically division of vein can cause air embolism
- supraclavicular nerves
- carotid sheath
- relations
- anterior wall
- ansa cervicalis
- cervical sympathetic chain lies behind the sheet plastered to prevertebral fascia
- overlapped by anterior birder of sternocleidomastoid
- content
- common or internal carotid arteries
- vagus nerve
- internal jugular vein
INVESTING LAYER
PRETRACHEAL FASCIA
PREVERTEBRAL FASCIA
