Parotid and associated structures Flashcards
T/F:
Intrinsic salivary glands are outside the oral cavity and drain into the cavity via ducts
False
this describes EXTRINSIC salivary glands
Where can you find intrinsic salivary glands?
Within the oral mucosa
What are the three extrinsic salivary glands?
Parotid, submandibular, sublingual
All paired
How is the parotid gland related to the ramus of the mandible and masseter?
It is lateral to the ramus of the mandible and masseter
T/F:
The parotid lies between the zygomatic bone and SCM
False
lies between the mandible and SCM
T/F:
Internal jugular, internal carotid and vagus are medial and separated from the parotid by styloid muscles
True
List the four landmarks where the parotid capsule is attached
Zygomatic arch
Mandible
Styloid Process
Tympanic plate
T/F:
The deep part of the capsule is attached to the tympanic plate
False
Deep part is attached to the styloid process
The superficial part is attached to the zygomatic arch, mandible, styloid process, tympanic plate
Explain how the stylomandibular ligament is formed
The part of the parotid capsule which is attached to the styloid process and the angle of the mandible
What is the tympanic plate?
Bone around the external acoustic meatus
T/F:
The parotid has a thick fibromuscular wall lined with cuboidal epithelium
False
Columnar epithelium
Explain how the course of the parotid duct
Leaves the anterior side of the parotid gland
travels superficially to masseter
pierces buccinator
empties into the vestibule of the mouth
T/F:
Parotid gets parasympathetic innervation from trigeminal
False
From glossopharyngeal hitchiking on auriculotemporal nerve
What supplies parotid with sympathetic innervation?
External carotid plexus
T/F:
The auriculotemporal nerves supply the superficial and inferior parts of the gland with sensory innervation
False
they supply the deep and superior parts of the gland with sensory innervation
What supplies the superficial and inferior parts of the parotid gland with sensory innervation? Where does this nerve come from?
Greater auricular nerve
Branch of the cervical plexus
List the three arteries that supply the parotid
Posterior auricular artery
Superficial temporal artery
Transverse facial artery
Which vein drains the parotid?
Retromandibular vein
T/F:
Within the parotid, the retromandibular vein is deep to the external carotid
False
External carotid is deep to the retromandibular vein
T/F:
Within the parotid, the facial nerve is more superficial than the retromandibular vein
True
Which surface of the parotid does the external carotid artery enter?
Posteromedial surface
Describe what happens to the external carotid within the parotid gland
Enters posteromedially
Divides into maxillary and superficial temporal arteries
Superficial temporal artery gives off the transverse facial artery before it exits from the superior surface
T/F:
Posteriorauricular artery may also arise within the parotid
True
What two veins come together within the parotid to form the retromandibular vein
Superficial temporal and maxillary vein
