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Gross Anatomy > Temporal and Infratemporal Fossa > Flashcards

Temporal and Infratemporal Fossa Flashcards

1
Q

Temporomandibular Joint

A

Modified hinge joint

has articular disk

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2
Q

Articular Disk

A

made of fibrocartilage

Superior and Inferior compartments

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3
Q

Superior Compartment of Articular Disk

A

gliding back and forth; side to side movements

attaches to tendon of lateral pterygoid

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4
Q

Inferior Compartment of Articular Disk

A

Hinge movements

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5
Q

Attachments of Temporomandibular Joint

A

superiorly- articular tubercle and mandibular fossa

inferiorly- neck of mandible

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6
Q

Temporalis Muscle

A

Elevates and pulls back mandible, right and left lateral movement for grinding and chewing

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7
Q

Innervation of Temporalis M

A

Anterior and Posterior Deep Temporal Nerves

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8
Q

Insertion of Temporalis M

A

Coronoid process and anterior surface of ramus of mandible

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9
Q

Masseter Muscle

A

Elevate, forward and backward movements of mandible, R and L movements

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10
Q

Innervation of Masseter

A

Masseteric Nerve

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11
Q

Insertion of Masseter

A

Angle and lateral suface of mandible

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12
Q

Lateral Pterygoid Muscle

A

moves mandible forward and down

R and L lateral mvmts for chewing and grinding

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13
Q

Innervation for Lateral Pterygoid Muscle

A

Lateral Pterygoid Nerves

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14
Q

Insertion for Lateral Pterygoid Muscle

A

pterygoid fovea on anterior surface of neck of mandible

joint capsule and articular disc of temporomandibular joint

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15
Q

Origin of Temporalis M

A

Inferior temporal line, temporal fossa, temporalis fascia

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16
Q

Origin of Masseter

A

maxillary process of zygomatic bone and zygomatic arch

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17
Q

Origin of Superior Head of Lateral Pterygoid

A

Infratemporal surface of greater wing of sphenoid

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18
Q

Origin of Inferior Head of Lateral Pterygoid

A

Lateral surface of lateral pterygoid plate

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19
Q

Medial Pterygoid Muscle

A

Elevates and moves forward mandible, R and L lateral movements

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20
Q

Innervation of Pterygoid Muscle

A

Medial pterygoid nerve

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21
Q

Origin of Deep Head of Medial Pterygoid M

A

Medial surface of lateral pterygoid plate

22
Q

Origin of Superficial Head of Medial Pterygoid M

A

tuberosity of maxilla

23
Q

Temporal Fossa Connection to Infratemporal Fossa

A

space between zygomatic arch and cranial wall

24
Q

Orbit Connection to Infratemporal Fossa

A

Inferior orbital fissure

25
Q

Middle Cranial Fossa Connection to Infratemporal Fossa

A

Foramen Ovale and Foramen Spinosum

26
Q

Pterygopalatine Fossa Connection to Infratemporal Fossa

A

Pterygomaxillary Fissure

27
Q

Nerve to Medial Pterygoid

A

inn medial pterygoid an tensor tympani and tensor veli palatine

28
Q

Meningeal Branch of V3

A

Enters middle cranial fossa thru foramen spinosum

inn dura mater

29
Q

Nerve to the Masseter

A

Inn masseter

sense fibers to temporomandibular joint

30
Q

Nerve to Lateral Pterygoid

A

inn pterygoid

31
Q

Deep Temporal Nerves

A

Anterior and Posterior, sometimes a Middle

32
Q

Buccal Nerve

A

sensory to skin and mucosa of cheek

33
Q

Auriculotemporal Nerve

A

2 roots that wrap around middle meningeal a

inn auricle, external auditory meatus, tympanic membrane, temporomandibular joint, scalp

34
Q

Inferior Alveolar Nerve

A

sensory and motor
inn mandibular teeth thru mandibular foramen
exits as mental nerve
gives off nerve to mylohyoid

35
Q

Nerve to Mylohyoid

A

motor branch of inferior alveolar nerve

inn mylohyoid and ant belly of digastric

36
Q

Lingual Nerve

A

sense to front 2/3 of tongue and floor of mouth

37
Q

Otic Ganglion

A

Parasympathetic ganglion in V3
get preganglionic fibers from lesser petrosal nerve that synapse in ganglion
postganglionic fibers go to parotid gland via auriculotemporal nerve

38
Q

Chorda Tympani Pathway

A

from CN7
exits temporal bone via petrotympanic fissure
joins lingual nerve at infratemporal fossa

39
Q

Chorda Tympana Innervation

A

sense/ taste to anterior 2/3 of tongue

preganglionic parasymp to submandibular ganglion; postganglionic fibers go to submandibular and sublingual glands

40
Q

Branches of Maxillary Artery

A

Mandibular, Pterygoid, Pterygopalatine

41
Q

Mandibular Part of Maxillary Artery

A

Accompanied by auriculotemporal nerve and maxillary vein

5 branches

42
Q

Deep Auricular Artery

A

from Madibular

supplies external auditory meatus and outer surface of tympanic membrane

43
Q

Anterior Tympanic Artery

A

from Mandibular
thru petrotympanic fissure w/ chorda tympani
supplies mucosa of tympanic cavity

44
Q

Middle Meningeal Artery

A

from Mandibular

thru foramen spinosum to supply dura mater and skull of middle cranial fossa

45
Q

Accessory Meningeal Artery

A

from Mandibular

thru foramen ovale to suplly trigeminal ganglion and surrounding dura mater

46
Q

Inferior Alveolar Artery

A

from Mandibular
accompanies alveolar n in mandibular canal and exits mental foramen w/ mental nerve
gives off artery to mylohyoid

47
Q

Massenteric Artery

A

supplies Masseter

from Maxillary A

48
Q

Anterior and Posterior Deep Temporal Arteries

A

from Maxillary A

Supply temporalis muscle

49
Q

Pterygoid Arteries

A

from Maxillary A

Supply medial and lateral pterygoids

50
Q

Buccal Artery

A

from Maxillary A

supplies buccinator, skin of cheek, mucosa of oral cavity

51
Q

Pterygoid Venous Plexus

A

network of veins located b/t temporalis and pterygoid mm
drain from vv traveling with maxillary arteries
links to Cavernous Sinus, Inferior Ophthalmic V, Facial Vein via deep facial vein

Gross Anatomy (30 decks)

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