H&N - Face and Scalp Flashcards
Parotid duct aka
Stensen’s duct
How does parotid duct get into mouth
After masseter muscle, dives into buccal fat and pierces buccinator muscle
End point of parotid duct
Near the second upper molar tooth
Structures through the parotid gland
Facial nerve
External carotid artery (and its branches; the maxillary and superficial temporal)
Retromandibular vein
Auriculotemporal nerve
Branches of facial nerve in facial canal
- greater petrosal nerve
- nerve to stapedius
- chorda tympani
Facial nerve branches through the stylomastoid foramen
Posterior auricular
Digastric
Stylohyoid
Facial nerve branches after entering parotid gland
The Zebra Buggered My Cat
Temporal branch
Zygomatic branch
Buccal branch
Marginal mandibular branch
Cervical branch
Functions of facial nerve
Face, ear, taste, tear
Taste: anterior 2/3
Tear: PSN to lacrimal and salivary glands
External carotid artery branches
Some attendings like freaking out potential medical students
Sup thyroid
Ascending Pharyngeal
Lingual
Facial
Occipital
Post auricular
Maxillary
Sup temporal
Tribuaries of retromandibular vein
superficial temporal and maxillary veins
Arterial supply of parotid
External carotid artery
Venous supply of parotid
Retromandibular vein
Lymphatic drainage of parotid
deep cervical
Innervation of parotid gland
Glossopharyngeal -> otic ganglion -> Auriculotemporal
Branches of opthalmic nerve
Supra-orbital
Supratrochlear
Infratrochlear
Lacrimal
External nasal
Branches of maxillary nerve
Zygomaticotemporal
zygomaticofacial
Infra-orbital
Branches of mandibular nerve
Auriculotemporal
Lingual
Inferior alveolar
Nerve to the mylohyoid
Mental
Layers of scalp
Skin
Connective tissue (dense)
Aponeurotic layer
Loose connective tissue
Pericranium
Innervation of scalp
Anterior to vertex: trigeminal
Posterior to vertex: C2 and C3 (great auricular, lesser and greater occipital, third occipital)
Nerve around whartons duct
lingual
Muscles of mastication
Masseter
Temporalis
Medial /lateral pterygoid
Which muscle opens the jaw
lateral pterygoid muscle
Which muscles close the jaw
Medial pterygoid
Masseter
Temporalis
Position of lacrimal gland
Superior and lateral to the orbit
Which muscles does mandibular nerve innervate
Muscles of mastication
Tensor veli oalatine
Mylohyoid
Anterior belly of digastric
Tensor tympani
