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BDS3 Anatomy > Temporal and Infratemporal fossae and the Maxillary Artery > Flashcards

Temporal and Infratemporal fossae and the Maxillary Artery Flashcards

1
Q

What is the superior and posterior borders of the temporal fossa?

A

Superior and inferior temporal lines

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2
Q

What is the anterior border of the temporal fossa?

A

Frontal process of zygomatic bone & zygomatic process of frontal bone

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3
Q

What is the inferior border of temporal fossa?

A

Infratemporal crest

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4
Q

What is the floor of the temporal fossa?

A

Frontal, parietal, temporal and greater wing of sphenoid bone (includes PTERION)

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5
Q

What is the roof of the temporal fossa

A

Formed by temporal fascia

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6
Q

What is the temporal fossa mainly occupied by?

A

Upper portion of temporalis

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7
Q

What is the lateral border of the infratemporal fossa?

A

Ramus of mandible

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8
Q

What is the medial border of infratemporal fossa?

A

Lateral pterygoid plate of sphenoid bone

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9
Q

Anterior border of infratemporal fossa

A

Posterior aspect of maxilla

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10
Q

Posterior border of infratemporal fossa

A

Tympanic plate, mastoid & styloid process

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11
Q

Superior border of infratemporal fossa

A

Infratemporal crest of sphenoid bone

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12
Q

Inferior border of infratemporal fossa

A

Angle of mandible

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13
Q

What nerves run through the infratemporal fossa?

A

CNV3
IAN
Lingual
Buccal
Chorda tympani
Otic ganglion

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14
Q

What are the contents of the infratemporal fossa? (excluding nerves)

A

Maxillary artery
Pterygoid venous plexus
Inferior part of temporalis
Lateral and medial pterygoid muscles

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15
Q

What is the clinical term for the space where you would anaesthetise for IAN block?

A

Pterygomandibular space
Space in infratemporal fossa between medial pterygoids and mandible.

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16
Q

What nerve encircles the middle meningeal artery?

A

Auriculotemporal (branch of CNV3)

17
Q

Where does the maxillary artery arise?

A

Posterior to the neck of the mandible

18
Q

What are the 3 parts of the maxillary artery?

A

1st - mandibular
2nd - pterygoid
3rd - pterygopalatine parts

19
Q

What are the main branches of the mandibular part of maxillary artery?

A

Middle meningeal - supplies dura
Inferior alveolar artery - enters mandibular foramen with IAN

20
Q

What are the main branches of the pterygoid part of the maxillary artery?

A

Anterior and posterior deep temporal arteries
Masseteric artery - passes through mandibular notch
Buccal artery

21
Q

What are the main branches of the pterygopalatine part of the maxillary artery?

A

Superior alveolar artery

22
Q

Where are the TMJ and the MOM located?

A

Temporal and infratemporal fossa

BDS3 Anatomy (13 decks)

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