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Sp24 - Head/Neck Anatomy > (E2) 4 - Infratemporal Fossa > Flashcards

(E2) 4 - Infratemporal Fossa Flashcards

Exam 2 - Schroeder

1
Q

Describe the location of the temporal fossa.

A

Broad area on lateral skull superior to zygomatic arch.

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2
Q

What muscle primarily occupies the temporal fossa?

A

Temporalis Muscle

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3
Q

What can be found in the infratemporal fossa?

A
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4
Q

Describe the Pterion and what can be found there.

A
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5
Q

Anterior and Posterior Deep Temporal Arteries branch from ______. The veins drain into the _______

A
  • 2nd part of the maxillary artery
  • pterygoid plexus
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6
Q

Middle temporal artery branches from _____ and anastamoses with _______.

Veins drain into ________

A
  • superficial temporal artery
  • deep temporal arteries
  • superficial temporal vein
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7
Q

_________ innervate
temporalis within temporal fossa

A

Deep temporal nerves

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8
Q

________ courses anterior to external acoustic meatus to convey sensation from lateral head

A

Auriculotemporal nerve

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9
Q

_____ conveys sensation from lateral scalp

A

Zygomaticotemporal Nerve

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10
Q

Facial nerve (____ branch) innervates superior orbital muscles, frontalis and auricularis muscles.

A

Temporal Branch

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11
Q

Describe the boundaries of the infratemporal fossa

A

Wedge-shaped inferior to temporal fossa, deep to mandible

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12
Q

Infratemporal fossa is continuous with ______ fossa via _____ fissure

A
  • pterygopalatine
  • pterygomaxillary
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13
Q

Infratemporal fossa is also continuous
with_____ via inferior orbital fissure

A
  • orbit
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14
Q

Infratemporal fossa is continuous with middle cranial fossa via ____ and _____

A
  • foramen ovale
  • foramen spinosum
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15
Q

What is the main artery to the infratemporal fossa?

A

Maxillary Artery

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16
Q

The maxillary artery is a terminal branch of ______

A

External Carotid Artery

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17
Q

Describe the course of the maxillary artery

A

Courses horizontally between neck or ramus of mandible and sphenomandibular ligament

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18
Q

What are the 3 parts of the maxillary artery?

A
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19
Q

What are the 5 branches of the 1st part of the maxillary artery?

A
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20
Q

Describe the location of the 1st part of the maxillary artery? (the mandibular part)

A
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21
Q

Describe where the Deep Auricular Artery is and what it supplies.

A
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22
Q

Describe where the Anterior tympanic Artery is and what it supplies.

A
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23
Q

Describe where the Middle Meningeal Artery is and what it supplies.

A
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24
Q

Describe where the Accessory Meningeal Artery is and what it supplies.

A
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25
Q

Describe where the Inferior Alveolar Artery is (as well as enters and exits)

A
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26
Q

Describe the course of the 2nd part of the maxillary artery. (pterygoid part)

27
Q

What are the 5 branches of the 2nd part of the maxillary artery?

28
Q

Describe where the Anterior and Posterior Deep Temporal Arteries are and what they` supplies.

29
Q

Describe where the Masseteric Artery is and what it supplies.

30
Q

Describe where the Pterygoid Arteries are and what they supplies.

31
Q

Describe where the Buccal Artery is and what it supplies.

32
Q

Describe the course of the 3rd part of the maxillary artery.

A

Courses into pterygopalatine fossa

33
Q

What is the only branch off the 3rd part of the maxillary artery and what does it supply?

34
Q

What nerve is this?

A

Mandibular V3

35
Q

What are the 5 anterior division branches off of the root of V3?

36
Q

Which nerves off of V3 are deep to the associated muscles?

37
Q

Describe the course of the Masseteric Nerve

38
Q

Describe the course and nerve supply of the Long Buccal Nerve

39
Q

Mandibular Nerve Anterior Division: Motor or Sensory

A

Mostly motor

40
Q

Mandibular Nerve Posterior Division: Motor or Sensory

A

Mostly sensory

41
Q

What nerves make up posterior division off of the root of V3?

42
Q

Auriculotemporal nerve - Normally has two roots that unite around _______

A

middle meningeal artery

43
Q

Describe the course of the Auriculotemporal nerve.

44
Q

Auriculotemporal nerve - Receives parasympathetic fibers from _______

A

otic ganglion

45
Q

Describe where and what the Otic Ganglion is

46
Q

What is the lesser petrosal nerve comprised of and what does it innervate?

47
Q

Describe the course of the lesser petrosal nerve

48
Q

What is the largest branch of the mandibular nerve?

A

Inferior alveolar nerve

49
Q

What does the inferior alveolar nerve innervate?

50
Q

Describe the course of the inferior alveolar nerve.

51
Q

Prior to entering the mandibular foramen and canal, ______ branches from the inferior alveolar nerve.

A

Nerve to Mylohyoid

52
Q

Inferior alveolar nerves continues onto face as _______

A

mental nerve

53
Q

Describe the course of the inferior alveolar nerve

54
Q

______ carrying preganglionic parasympathetic fibers and special sensory fibers. Joins superoposterior aspect of lingual nerve.

A

Chorda tympani nerve

55
Q

_____ nerve is medial and anterior to inferior alveolar nerve

A

Lingual Nerve

56
Q

Lingual nerve passes between ______ and _______

A
  • medial pterygod
  • ramus
57
Q

Describe the course of the chorda tympani nerve.

58
Q

What does the chorda tympani nerve convey sensory information from?

59
Q

What does the lingual nerve convey sensation from?

60
Q

What does the posterior superior alveolar nerve convey sensory information from?

61
Q

Describe the course of the Posterior Superior Alveolar Nerve

62
Q

______ is a valveless venous network in the infratemporal fossa

A

Pterygoid plexus

63
Q

What does the pterygoid plexus communicate with?

A

Facial vein via deep facial vein, cavernous sinus and ophthalmic veins

64
Q

Pterygoid Plexus: Posterior convergence is into maxillary vein(s) that unite with superficial temporal vein to form
_______ vein

A

retromandibular

Sp24 - Head/Neck Anatomy (15 decks)

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