Anat - Infratemporal Fossa

Front 1

ITF
Superior boundary

Back 1

Infratemporal crest

Front 2

ITF
Anterior boundary

Back 2

Maxilla

Front 3

ITF
Posterior boundary

Back 3

Styloid process & carotid sheath

Front 4

ITF
Lateral boundary

Back 4

Ramus of mandible

Front 5

ITF
Medial boundary

Back 5

Later ptg plate

Front 6

Infratemp fossa communicates with Ptg.Pal.Fossa via what?

Back 6

Ptg.Max. Fissure

Front 7

How many muscles are derived from the 1st arch?

Back 7

8

Front 8

What fiber supplies muscles from the 1st arch?

Back 8

Efferent fibers of Mandibular V3

Front 9

Muscles of Mastication (4)

Back 9

1. Temporalis
2. Masseter
3. Lateral Ptg
4. Medial Ptg.

Front 10

8 Muscles from the 1st arch

Back 10

Muscles of mastication (4)
5. Tensor veli palatini
6. Tensor tympani
7. Anterior digastric
8. Mylohyoid

Front 11

Which cranial nerve is associated with muscles of mastication?

Back 11

CN V3, Mandibular

3-7-9-10

Front 12

Which cranial nerve is associated with derivatives of the first arch?

Back 12

CN V3, Mandibular

3-7-9-10

Front 13

What is the general function of temporalis muscle?

Back 13

Elevates and retracts mandible

Front 14

What is the general function of masseter muscle?

Back 14

Elevate mandible

Front 15

What is the general function of lateral Ptg. muscle?

Back 15

Pull mandible forwards

Front 16

What is the general function of medial Ptg. muscle?

Back 16

Elevate mandible

Front 17

What is protrusion of mandible?
By which muscles?

Back 17

1. Move forward
2. Lateral and Medial Ptg. Muscles

Front 18

What is retraction of mandible?
By which muscles?

Back 18

1. Move toward posterior
2. Posterior of Temporalis & deep of Masseter & geniohyoid and digastric

Front 19

What is elevation of mandible?
By which muscles?

Back 19

1. Closing the mouth
2. Temporalis, masseter, medial Ptg. muscle

Front 20

What is depression of mandible?
By which muscles?

Back 20

1. Opening the mouth
2. gravity / digastric, geniohyoid, mylohyoid

Front 21

Where is Sphenomandibular ligament?
Another name?

Back 21

1. Spenoid and lingula of mandible
2. Medial lig.

Front 22

Where is Stylomandibular ligament?
Another name?

Back 22

1. Styloid process and angle of mandible
2. Posterior lig.

Front 23

Where is Temporomandibular lig?
Another name(s)?

Back 23

1. Temporal arch to mandibular condyle
2. Lateral lig, Check lig.

Front 24

What type of joint is TMJ?

Back 24

Ginglymoarthrodial joint

Front 25

Innervation of TMJ?

Back 25

Masseteric and auriculotemporal nerves

Front 26

Temporalis
- Origin

Back 26

1. Temporal fossa
2. Temporal fascia

Front 27

Temporalis
- Insertion

Back 27

1. Coronoid process
2. Anterior of mandible ramus

Front 28

Temporalis
- Innervation

Back 28

Deep temporal branches of Mandibular Nerve

Front 29

Temporalis
- Functions

Back 29

Elevates mandible, ie closes jaw

Front 30

Masseter
- Origin

Back 30

Zygomatic arch:
1. medial surface
2. inferior border

Front 31

Masseter
- Insertion

Back 31

1. Lateral of mandible ramus
2. coronoid process

Front 32

Masseter
- Innervation

Back 32

Masseteric nerve of Mandibular nerve

Front 33

Masseter
- Function

Back 33

Elevates and protrudes mandible

Front 34

Lateral Ptg
- Origin

Back 34

Superior Head:
- infratemporal surface + infratemporal crest of geater wing of sphenoid

Inferior head:
- lateral of lateral Ptg plate

Front 35

Lateral Ptg
- Insertion

Back 35

Neck of mandible

Front 36

Lateral Ptg.
- Innervation

Back 36

Lateral Ptg nerve of Mandibular nerve

Front 37

Lateral Ptg.
- Function

Back 37

Together - protrusion
Individual - side to side movements

Front 38

Medial Ptg
- Origin, deep head

Back 38

lateral Ptg plate + pyramid of palatine

Front 39

Medial Ptg.
- Origin, superficial head

Back 39

tuberosity of maxilla

Front 40

Medial Ptg.
- Insertion

Back 40

Ramus

Front 41

Medial Ptg
- Innervation

Back 41

Medial Ptg nerve of Mandibular nerve

Front 42

Medial Ptg.
- Function

Back 42

Elevate mandible

Front 43

Only V3 has efferent fibers.
Where do motor and sensory of V3 join?

Back 43

Within foramen ovale or in ITF

Front 44

Nerve branches of V3 in ITF

Back 44

1. Auriculotemporal
2. Deep temporal
3. Masseteric
4. Long buccal
5. Lingual
6. Inferior alveolar
7. Nerve to mylohyoid

Front 45

Nerve branches of V2 in ITF

Back 45

Posterior superior alveolar

Front 46

Maxillary artery branches, part 1

Back 46

Part 1: Dancing Ant In Middle America
Deep Auricular
Anterior Tympanic
Inferior Alveolar
Middle Meningeal
Accessory Meningeal

Front 47

Maxillary artery branches, part 2

Back 47

Part 2: Don't Touch Mah LP MP B..
Deep Temporal
Masseteric
Lateral Ptg
Medial Ptg
Buccal