Parotid gland Flashcards
boundaries of the parotid bed/retromandibular fossa
Anterior: Mandible ramus posterior border , Masseter (laterally), Medial pterygoid (medially)
Posterior: mastoid process covered by sternocleidomastoid laterally
Superior: external acoustic meatus and posterior part of TMJ
Inferior: line joining angle of mandible to mastoid process
Medially: styloid process with stylohyoid, styloglossus, & stylopharyngeus
Extent of parotid gland
Superior; up to external acoustic meatus
Inferior; line joining angle of mandible to mastoid
Anterior; overlaps masseter posterior border
Posterior; overlaps sternocleidomastoid anterior border
Medially; close to pharynx wall (styloid process)
Location of accessory parotid gland and from which structure does it emerge?
Located between zygomatic arch superiorly and parotid duct inferiorly
Emerges from anterior aspect of parotid gland
Which layer of deep cervical fascia forms the false capsule?
Investing layer
The false capsule is also the
parotid fascia
Structure formed by deep lamina of parotid fascia and its significance
stylomandibular ligament
separates parotid gland from submandibular gland
Relations of the apex of parotid gland
- retromandibular vein and its divisions
- cervical branch of facial nerve
- posterior digastric
- upper carotid triangle
relations of lateral/superficial surface of parotid gland
skin
superficial fascia containing (preauricular/superficial parotid lymph nodes, greater auricular nerve, and platysmaO
parotid fascia superficial lamina
deep parotid lymph nodes
Attachments of superficial and deep laminae of parotid fascia
superficial lamina attaches to inferior border of zygomatic arch
deep lamina attaches to styloid process and tympanic plate
State relations of the anteromedial surface
Masseter
Mandible ramus
Medial pterygoid
TMJ lateral aspect
State the relations of the posteromedial surface
mastoid sternocleidomastoid styloid digastric posterior belly facial nerve external carotid artery
The parotid gland is separated from which structures by the styloid process and its attachmed muscles
Internal jugular vein
Internal carotid artery
Last 4 cranial nerves
Superficial lamina of parotid fascia also called
parotidomasseteric fascia
State the structures within the partoid gland from superficial to deep
*MNEMONIC: Not Vlogging Again :(
facial Nerve
retromandibular Vein
external carotid Artery
Formation of retromandibular vein
union of maxillary and superficial temporal veins