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DHBS 301 > Pre-Class Reading Assignment for TBL 3 > Flashcards

Pre-Class Reading Assignment for TBL 3 Flashcards

1
Q

What structures do you have to remove to view the infratemporal region?

A
  • Zygomatic arch
  • Ramus of mandible
  • Masseter muscle
  • Temporalis muscle
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2
Q

Borders of the inframtemporal region

A
  • Posterior aspect of the maxilla
  • External acoustic meatus
  • Styloid process
  • Lateral pterygoid plate
  • Medial surface of the ramus
  • Infratemporal surface of the greater wing of the sphenoid
  • Superior aspect of the body of the mandible
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3
Q

What cranial openings are found within the infratemporal fossa?

A
  • Foramen spinosum
  • foramen ovale
  • Pterygomaxillary fissure
  • Mandibular foramen
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4
Q

Structures within the infratemporal fossa

A
  • Muscles of mastication
  • Branches of the first two divisions of the maxillary artery
  • Pterygoid plexus of veins
  • Mandibular division of the trigeminal nerve
  • Otic ganglion
  • Chorda typani nerve
  • Medial aspects of the TMJ and associated ligaments
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5
Q

Pterygoid plexus of veins is the venous counterpart to the…

A

Branches of the maxillary artery

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6
Q

Is the otic ganglion sympathetic or parasympathetic?

A

Parasympathetic ganglion

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7
Q

What CN does the chord tympani nerve come from?

A

CN VII

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8
Q

What ligaments are associated with the TMJ?

A
  • Sphenomandibular ligament
  • Stylomandibular ligaments
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9
Q

What are the four muscles of mastication?

A
  • Masseter
  • Temporalis
  • Lateral pterygoid muscle
  • Medial pterygoid muscle
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10
Q

Muscles of mastication receive motor innervation the the…

A

CN V3, mandibular division of the trigeminal nerve

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11
Q

Are the medial pterygoid muscle fibers vertical or horizontal?

A

Vertical

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12
Q

Are the lateral pterygoid muscle fibers vertical or horizontal?

A

Horizontal

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13
Q

Medial pterygoid muscle, superficial head origin

A

Maxillary tuberosity
Pyramidal process of the palatine

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14
Q

Medial pterygoid muscle, deep head origin

A

Sphenoid
Pyramidal process of the palatine

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15
Q

Medial pterygoid muscle insertion

A

Medial aspect of the ramus and angle of the mandible

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16
Q

Medial pterygoid muscle action

A
  • Elevation
  • Protrusion
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17
Q

What muscle is the medial pterygoid muscle parallel to?

A

Masseter

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18
Q

Masseter insertion

A

Angle of the mandible

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19
Q

Masseter action

A

Elevation

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20
Q

Lateral pterygoid muscle, inferior head origin

A

Lateral pterygoid plate

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21
Q

Lateral pterygoid muscle, superior head origin

A

Infratemporal surface of the greater wing of sphenoid

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22
Q

Lateral pterygoid muscle insertion

A
  • Pterygoid fovea on the neck of the mandible
  • Or directly onto articular disk of the TMJ
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23
Q

Lateral pterygoid muscle actions

A
  • Depression
  • Protrusion
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24
Q

CN V3 functional components

A

Motor and sensory fibers

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25
Q

CN V3 foramen?

A

Foramen ovale

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26
Q

What part of the cranial fossa is the foramen ovale in?

A

Middle cranial fossa

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27
Q

Overall, motor branches of V3 innervates what muscle group?

A

Muscles of mastication

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28
Q

What innervates the anterior belly of the digastric muscle?

A

CN V3

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29
Q

Mylohyoid innervation

A

CN V3

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30
Q

Tensor tympani innervation

A

CN V3

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31
Q

Tensor veli palatini muscles innervation

A

CN V3

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32
Q

Inferior alveolar nerve passes through what foramen? Then what does it enter?

A
  • Mandibular foramen
  • Mandibular canal
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33
Q

Inferior alveolar nerve mediates sensation from the…

A
  • Bone
  • Gingiva
  • Teeth of mandible
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34
Q

Inferior alveolar nerve motor branch is the…

A

Mylohyoid branch

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35
Q

Inferior alveolar nerve sensory branch is the…

A

Mental branch

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36
Q

Lingual nerve mediates general sensation from the…

A

Anterior 2/3 of tongue

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37
Q

Lingual nerve conveys tasts fibers from the…

A

Anterior 2/3 of tongue

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38
Q

Lingual nerve conveys pregnalgionic parasympathetic fibers from the…

A

Chorda tympani branch of CN VII

39
Q

Chorda tympani branch of the facial nerve mediates…

A

Submandibular and sublingual salivary glands

40
Q

Auriculotemporal functional component

A

General sensory

41
Q

Auriculotemporal nerve also conveys parasympathetic fibers from the…

A

Otic ganglion to the parotid gland

42
Q

Parasympathetic input to the parotid gland is mediated by…

A
  • CN IX
  • Lesser petrosal branch
43
Q

Where does the lesser petrosal branch enter the infratemporal fossa?

A

Foramen ovale

44
Q

Two terminal branches of external carotid artery

A
  • Maxillary arteries
  • Superficial temporal artery
45
Q

Maxillary artery branches

A
  • Inferior alveolar artery
46
Q

What do branches of the maxillary artery supply?

A
  • Supply the tympanic region
  • Supply meninges/cranial cavity
  • Muscles of mastication
  • Temporal and buccal regions
47
Q

Articulation between the mandible and skull

48
Q

Joint capsule

A

Thin loose ligament that encloses the joint capsule

49
Q

Temporomandibular ligament

A

Joint capsule and ligaments

50
Q

Temporomandibular ligament function

A

Protect joint from posterior dislocation

51
Q

Sphenomandibular and stylomandibular ligament functions

A

Weaker, protect joint from excessive range of motion

52
Q

Sphenomandibular ligament

A
  • Flat broad band
  • Goes between the spine of the sphenoid and the lingual of the mandible
53
Q

What does the sphenomandibular ligament course near to?

A

Inferior alveolar nerve, artery, and vein as they enter the mandibular foramen

54
Q

Stylomandibular ligament

A
  • Posterior boundary
  • Styloid process to the angle of the mandible
55
Q

Rotational/hinge like movements of the mandible are executed in the…

A

Inferior synovial cavity

56
Q

Gliding movements occur in the

A

Superior synovial cavity

57
Q

Translation of the mandible

A
  • Mandible sits in the mandibular fossa when closed
  • Must glide anteriorly onto the articular eminence for the jaw to open
58
Q

Nasal cavity location

A

Midline between orbits and maxillary sinuses

59
Q

Nasal cavity function

A
  • Warm and humidify air on its way to respiratory tract
60
Q

Superior aspect of the nasal cavity function? What is it called?

A
  • Sensing odorant molecules in the passing of air
  • Olfactory epithelium
61
Q

What nerve innervates the olfactory epithelium?

62
Q

Support of the nasal septum

A
  • Posterior: Perpendicular plate of the ethmoid
  • Superiorly: Vomer
63
Q

Anterior part of the nasal septum is made of…

A

Septal cartilage

64
Q

What covers the surface of the septum?

A

Nasal mucosa

65
Q

The nasal mucosa is vascularized by ..

A

Branches of the maxillary, ophthalmic, and facial arteries

66
Q

What is the nasal mucosa innervated by

A
  • CN V1
  • CN V2
  • Superior aspects by CN I
67
Q

Conchae on lateral wall purposes

A

Humidify air, warm air, and increase surface area

68
Q

Meati on lateral wall purpose

A

Contains openings/ostia for communication with adjacent structures

69
Q

Where is the spheno-ethmoidal recess located?

A

Above superior nasal concha

70
Q

Inferior meatus contains the opening to…

A

The nasolacrimal duct

71
Q

Nasolacrimal duct function

A

Where tear fluid produced by the lacrimal gland drains from the medial part of the eye

72
Q

Middle meatus contains…

A
  • Elevation
  • Ethmoidal bulla, raised by the middle ethmoidal sinuses
73
Q

Hiatus semilunaris

A
  • Expands in several directions to maintain openings with the frontal sinus, maxillary sinus, and anterior ethmoidal sinus
74
Q

Through what does the hiatus semilunaris maintain contact with the frontal sinus?

A

Frontonasal duct

75
Q

The superior meatus contains…

A

Small openings for posterior ethmoidal sinuses

76
Q

Sphenoethmoidal recess contains…

A

Ostium for sphenoid sinus

77
Q

Sinus infection/sinusitis

A

Can be caused by the occluded openings in the nasal wall, then they can’t drain

78
Q

Frontal sinus location

A

Frontal bone, superior to nasal cavity and orbit

79
Q

Ethmoidal sinus

A

Ethmoid bone, medial to orbits

80
Q

Sphenoidal sinus

A

Midline, nasal cavity in the body of sphenoid

81
Q

Infraorbital nerve goes through what sinus?

A

Maxillary sinus

82
Q

What branches come from the infraorbital nerve?

A

Anterior, middle, and superior alveolar nerves

83
Q

Where do the anterior, middle, and superior alveolar nerves go to?

A

Down the walls of the sinus to the maxillary teeth

84
Q

What do the anterior, middle, and superior alveolar nerves mediate sensation to

A

Maxillary teeth

85
Q

What is the most difficult paranasal sinus to drain? Why?

A
  • Maxillary
  • Opening to this is located in the superiorly aspect
86
Q

Pterygopalatine fossa borders

A
  • Maxilla
  • Palatine
  • Sphenoid bone
87
Q

Major contents of the pterygopalatine fossa include

A
  • 3rd portion of the maxillary artery and branches
  • Maxillary division, CN V2
  • Branches of the pterygopalatine ganglion
88
Q

Is the pterygopalatine ganglion parasympathetic or sympathetic?

A

Parasympathetic

89
Q

What foramen does the CN V2 go through? Where is it going?

A
  • Foramen rotundum
  • Pterygopalatine fossa
90
Q

What does CN V2 give rise into what branches in the pterygopalatine fossa?

A
  • Posterior superior alveolar nerve
  • Infraorbital nerve
  • Middle superior alveolar nerve
  • Anterior superior alveolar nerve
  • Greater lesser palatine nerves
  • Sphenopalatine nerve
91
Q

Where does the middle superior alveolar nerve branch from?

A

Infraorbital nerve within the maxillary sinus

92
Q

Where does the anterior superior alveolar nerve branch from?

A

Infraorbital nerve within the maxillary sinus

93
Q

The 3rd division of the maxillary artery goes into the infratemporal fossa through the…

A

Pterygomaxillary fissure

DHBS 301 (21 decks)

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