Face and Parotid Gland Flashcards

1
Q

Bones of Anterior Skull

A
  1. Frontal Bone - forehead & roof of orbit
  2. Maxillae - floor of orbit; surrounds piriform aperture
  3. Mandible - lower jaw; body & ramus; mental protuberance
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2
Q

Major foramina of facial region and nerves

A
  1. Supraorbital notch - supraorbital nerve & vessels
  2. Infraorbital foramen - infraorbital nerve & vessels
  3. Mental foramen - mental nerve & vessels
  4. Stylomastoid foramen - terminal part of Facial Nerve (CN VII)
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3
Q

Innervation of all muscles of facial expression

A

Facial Nerve (CN VII)

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4
Q

Which arch do muscles of facial expression develop with

A

2nd pharyngeal arch

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5
Q

Major Muscles of Facial Expression

A
  1. Levator labii superioris alaeque nasi
  2. Zygomaticus Major
  3. Orbicularis Oris
  4. Depressor anguli Oris
  5. Buccinator
  6. Orbicularis Oculi
  7. Frontalis
  8. Corrugator supercilii
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6
Q

What pierces Buccinator

A

Duct of Parotid gland

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7
Q

Major vascular supply of face

A
  1. External carotid artery
    1. Facial artery
    2. Superficial temporal artery
      1. Transverse facial
  2. Internal Carotid artery
    1. opthalmic artery - eye/orbit
      1. joins Supraorbital & Supratrochlear arteries
  • Anastomose at midline
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8
Q

Branches of Facial artery

A
  1. Inferior Labial
  2. Superior Labial
  3. Lateral Nasal
  • terminates as Angular Artery towards medial corner of eye
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9
Q

Vein of Face and Communications

A

Facial Vein

  • No Valves
  • drains into IJV
  • Communicates with
    • Opthalmic vein
    • Infraorbital vein
    • Deep Facial Vein
    • Pterygoid vein
  • All communicate with Intracranial veins
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10
Q

Parotid Gland

A
  • Largest salivary gland
  • Passes into oral cavity via parotid duct
  • Pierces Buccinator
  • Innervation: Glossopharyngeal Nerve (CN IX)
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11
Q

Structures that pass through Parotid Gland

A
  1. Facial Nerve (CN VII)
  2. Retromandibular Vein
  3. External Carotid
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12
Q

Branches of Facial Nerve

A
  1. Temporal
  2. Zygomatic
  3. Buccal
  4. Mandibular
  5. Cervical
  6. Posterior auricular branch (to occipitalis and auricular muscles)
  • “To Zanzibar By Motor Car”
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13
Q

Retromandibular Vein Divisions

A
  1. Anterior Branch
    1. Joins Facial Vein
  2. Posterior Branch
    1. joins External Jugular Vein
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14
Q

Branches of External Carotid Artery

A
  1. Maxillary artery
  2. Superficial Temporal artery
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15
Q

Lymph nodes of Head & Neck

A
  • Superficial Lymph Nodes
    • Occipital Nodes
    • Mastoid Nodes
    • Parotid Nodes
    • Submandibular Nodes
    • Submental Nodes
  • All drain to Deep Cervical Nodes
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16
Q

Where do Deep Cervical Nodes drain to

A
  • Right Lymphatic Duct (right Side)
  • Thoracic duct (Left side)
  • Drain into Venous Angles
17
Q

“Special” Cranial Nerves

A
  • Special Sensory nerves (Taste, touch, etc)
  • Branchiomotor nerves - assoc. with pharyngeal arches (CN V, VII, IX, X)
  • Cranials w/ parasympathetics - CN III, VII, IX, X
18
Q

Branchiomotor Nerves

A
  • Nerves associated with Pharyngeal Arches
  • CN V, VII, IX, X
19
Q

Parasympathetic (Visceral Motor) Cranial Nerves

A
  • Occulomotor Nerve (CN III)
  • Facial Nerve (CN VII)
  • Glossopharyngeal Nerve (CN IX)
  • Vagus Nerve (CN X)
20
Q

Pairs of Parasympathetic ganglia in Head

A
  • Ciliary ganglia
  • Otic ganglia
  • Pterogopalatine ganglia
  • Submandibular ganglia
21
Q

4 Major Functions of Facial Nerve

A
  1. Innervation of Facial Expressoin muscles via Branchiomotor Nerves of CN VII
  2. Taste sensaiton from anterior 2/3 tongue via chorda tympani nerve
  3. Parasympathetic innervation of lacrimal/nasal glands via greater petrosal nerve AND sublingual/submandibular gland via chorda tympani nerve
  4. General sensation to ear/canal
22
Q

Major sensory nerve of face

A

Trigeminal Nerve

  • associated with Trigeminal Ganglion in cranial cavity
23
Q

Major Branches of Trigeminal Nerve (CN V)

A
  1. Opthalmic Branch (V1)
    1. General sensory
  2. Maxillary (V2)
    1. General sensory
  3. Mandibular (V3)
    1. General Sensory
    2. AND
    3. Branchiomotor
24
Q

Trigeminal Dermatomes

A
25
Q

Branchiomotor innervations by CN V3

A
  1. Masseter
  2. Temporalis
  3. Pterygoids
  4. Mylohyoid
  5. Anterior Digastric
  6. Tensor veli Palatini
  7. Tensory tympani