Head and neck spaces Flashcards
Components of the masticator space
Muscles - muscles of mastication (masseter, medial and lateral pterygoids, temporalis),
Coronoid and condyle of mandible
V3
Inferior alveolar nerve, vein and artery
Boundaries of the masticator space
Anterior - buccal space
Posterolaterally - parotid
Medially - parapharyngeal
What is the visceral space?
Everything you see when you perform endoscopy
It is surrounded by the visceral fascia
What is the most common tumour of the visceral space?
SCC
What fascia is the retropharyngeal space between?
Visceral fascia anteriorly
Alar fascia posterior
Terminates in mediastinum
What is the Danger space?
Between alar fascia and preverterbral fascia
Extends all the way through crura of diaphragm to retroperitoneal space!
What is in the retropharyngeal space?
Its a potential space but there are paired lymph nodes
What is the pre-vertebral space?
Majority formed by vertebral bodies, arteries, clivus.
Discs and surrounds muscles (longs coli)
What nerve is in the parotid space?
Facial nerve - separates the superficial and deep lobes of the parotid gland.
What are warthin’s tumours?
Multiple benign lesions in parotid. pleomorphic adenoma is also benign but usually solitary
Where is the parapharyngeal space
Space lateral to the pharynx
Post-styloid parapharyngeal space/carotid space contains?
carotid. internal jugular
Nerves - CN 9, 10, 11, 12. Sympathetic nerves
Nodes - deep cervical lymph nodes
Where is the sublingual space?
Below the tongue.
Lateral margin formed by mandible
Wall formed by myolohyoid
Base formed by hyoid bone
What is the submandibular space?
Space inferior to mandible and mylohyoid muscle
What are the contents of the submandibular space?
Submandibular gland - can see sialoliths in warthins duct
level 1 lymph nodes AKA submandibular lymph nodes
branches of facial artery
