Neck: Fascia and Spaces Flashcards
What are the attachments of the sternocelidomastoid
Clavicle/Sternum
mastoid process
What is an Adam’s apple
thyroid cartilage of larynx
What does the superficial facia contain
platysma muscle and fat
What does the investing fascia surround
all structures
What does the prevertebral fascia surround
vertebral column and deep muscles
What does the pretracheal fascia enclose
viscera
What does the carotid sheath enclos
neurovascular bundles
What is the muscular compartment surrounded by
investing fascia
What is the vertebral compartment enclosed by
prevertebral fascia
What is the vascular compartment enclosed by
carotid sheath
What is the visceral compartment enclosed by
pretracheal fascia
What structures are contained within the carotid sheath
jugular vein
common carotid
vagus nerve
What is the platysma muscle
skeletal muscle within the superficial fascia of the neck
What nerves pass through playsma
superficial branches of cervical plexus
What nerve innervates platysma
CN VII
What muscle is manipulated in a facelift
platysma
What are the two parts of the pretracheal fascia
pretracheal proper
buccopharyngeal
What is pretracheal proper fascia attachments
attaches to the hyoid bone above and fibrous pericardium below
What is buccopharyngeal fascia
base of skull, fuses with pre-tracheal and adventitia of esophagus
How is the superficial cervical ansa formed
cervical branch of facial nerve forms loop with transverse cervical nerve
What are the superficial nerves of the neck
lesser occipital
supraclavicular
transverse cervical
great auricular
What muscles will be enclosed in investing fascia
SCM, trapezius, infrahyoid muscles
What structures pierce the investing fascia
external and anterior jugular veins lesser occipital nerve great auricular transverse cervical supraclavicular
What are the specializations of the pretrachial fascia
axillary sheath
sibson’s fascia
two slings for omohyoid and digastric
What fascial layers contribute to the carotid sheath
pretracheal, investing, prevertebral fascia
What are the contents of the carotid sheath
common carotid artery
internal carotid artery
internal jugular vein
vagus nerve
Where is the pretracheal space found
between investing and pretracheal fascia
Where does the pretracheal space extend
to the mediastinum
Where is the retropharyngeal space found
buccopharyngeal and alar fascia
Where does the retropharyngeal space extend to
carina
Where is the danger space found
between alar and prevertebral fascia
What are the two main spaces in the neck that abscesses can occur
pretracheal space
retropharyngeal space
DANGER SPACE
Where does the danger space extend
cranium to mediastinum
