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52 Cards in this Set
- Front
- Back
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What divides the fasciae of the parotid region into the superficial and deep (parotideomasseteric fascia)?
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Parotid gland
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What divides the parotid gland into lobes?
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perforating septa from the fibrous capsule (deep fascia)
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What is the superior border of the parotid region?
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zygomatic arch, external auditory meatus and TMJ
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What is the posterior border of the parotid gland?
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The mastoid process, SCM and posterior belly of the digastric
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What neurovascular structure is embedded in the parotid gland?
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1. Facial nerve (CNVII)
2. Retromandibular vein 3. external carotid artery |
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What foramen does the facial nerve exit the skull through?
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The stylomastoid foramen
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What lies superficial to the ramification of the facial nerve?
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Parotid gland
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What veins drain into the retromandibular vein?
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the superficial temporal and maxillary veins
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What does the retromandibular vein divide into? what do the branches drain into?
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Anterior and posterior branches which drain into the common facial and external jugular veins respectively
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Where does the external carotid artery divide into its two branches?
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W/in the parotid gland
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What are the two terminal branches of the external carotid artery?
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Superficial temporal artery and the maxillary artery
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What branch does the superficial temporal give off before leaving the parotid gland?
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transverse facial artery
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What fascia covers the masseter muscle?
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Parotideomasseteric fascia
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What is the action and innervation of the masseter muscle?
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Action: muscle of mastication; elevates the mandible
Innervation: nerve to masseter from V3 |
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What nerve do postganglionics to the otic ganglion run with?
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Auriculotemporal nerve
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What are the boundaries of the infratemporal fossa?
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Superior: greater wing of sphenoid
Inferior: Medial pterygoid muscle Medial: lateral pterygoid plate Lateral: ramus of mandible |
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What is the pterion?
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The weakest point in the skull
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What is the action and innervation of the temporalis muscle?
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Action: elevates and retracts the mandible
Innervation: Deep temporal nerves from V3 |
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What nerves pass above the superior border of the lateral pterygoid?
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Deep temporal nerves
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What nerve receives a communicating branch from the lacrimal nerve and asends b/e the bone and substance of the temporalis muscle about 2.5cm above the zygomatic arch?
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Zygomaticotemporal nerve
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What is the action and innvervation of the medial pterygoid muscle?
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Action: elevates mandible
Innervation: nerve to medial pterygoid V3 |
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What is the action and innervation of lateral pterygoid?
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Action: protrudes and depresses mandible
Innervation: nerve to lateral pterygoid (V3) |
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What artery originates behind the neck of the mandible?
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Maxillary artery
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What artery passes anteriorly lateral to the lateral pterygoid muscle?
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Maxillary artery
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Where does the maxillary artery terminate?
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In the pterygopalatine fossa
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What separates the maxillary artery into three parts?
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lateral pterygoid muscle
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What nerve does the mandibular part of the maxillary artery run with?
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Branches of V3 through foramina
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What does the second part of the maxillary artery run with?
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muscular branches
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What does the third part of the maxillary artery run with?
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Branches of V2 through foramina
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What are the branches of the maxillary artery? *in order
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*DAM I AM Piss Drunk But Stupid Drunk I Prefer, Must Phone Alcoholics Anonymous*
(first part) D eep auricular artery A nterior tympanic artery M iddle meningeal artery I nferior Alveolar A ccessory meningeal artery (second part) M asseteric artery P terygoid artery D eep temporal artery B uccal artery (third part) S phenopalatine artery D escending palatine artery I nfraorbital artery P osterior superior alveolar artery M iddle superior alveolar artery P haryngeal artery A nterior superior alveolar artery A rtery of the pterygoid canal |
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What fissure does the anterior tympanic artery pass through?
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Petrotympanic fissure
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What does the deep auricular artery supply?
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External auditory meatus (external) tympanic membrane
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What does the anterior tympanic artery supply?
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internal tympanic membrane
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What does the middle meningeal artery supply?
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anterior and posterior branches to the dura of the skull
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How does the middle meningeal artery enter the skull?
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Through the foramen spinosum
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What foramen does the accessory meningeal artery enter the skull?
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Foramen ovale
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What is the course of the inferior alveolar artery?
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Descends w/ inferior alveolar nerve to the mandibular foramen on the medial surface of the ramus of the mandible then divides into the incisor and mental branches opposite the first premolar tooth
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What branches does the inferior alveolar artery give off?
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*Look at My Dead Manatee's Ipad*
Lingual branch Mylohyoid branch Dental branch Mental branch Incisor Branch |
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What venous plexus is found around the maxillary artery?
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Pterygoid plexus of veins
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What is the course of the mandibular division of the trigeminal nerve? (CNV)
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Arises from trigeminal ganglion and emerges from the cranial cavity into the infratemporal fossa via the foramen ovale
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Where does V3 divide?
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Deep to the lateral pterygoid muscle
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What branches does V3 give off before dividing?
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The meningeal branch and the nerve to the medial pterygoid
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What branches does the nerve to the medial pterygoid give off?
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1. nerve to tensor veli palatini
2. nerve to tensor tympani |
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What are the branches of the anterior division of the mandibular branch of trigeminal nerve?
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*No Dice! Ninja Bombs!*
Nerve to masseter muscle Deep temporal nerves Nerve to lateral pterygoid Buccal nerve |
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What are the branches of the posterior division of V3?
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*Act Like I care!*
Auriculotemporal nerve Lingual nerve Inferior Alveolar nerve |
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What nerve carries postganglionic sympathetics to the parotid gland from the otic ganglion?
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Auriculotemporal nerve
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What nerve carries presynaptic parasympathetics to the submandibular ganglion?
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Chorda tympani nerve
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What nerve carries taste sensation from the anterior 2/3rds of the tongue?
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Chorda tympani nerve
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What nerve carries postganglionic parasympathetics to the sublingual and submandibular salivary glands?
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Chorda tympani
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What are the branches of the inferior alveolar nerve?
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*Ninjas Attack In March*
Nerve to mylohyoid Alveolar branches to the mandibular teeth Incisive nerve to the mandibular teeth Mental nerve |
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What nerve supplies the anterior belly of digastric?
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nerve to the mylohyoid
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What is the temporomandibular joint (TMJ)?
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A complex articulation of the mandible b/e the maxillary and mandibular teeth (interjaw dental occlusion) and b/e the mandibular condyle and the temporal bone
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