Temporal Infratemporal Fossae Flashcards Preview

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Flashcards in Temporal Infratemporal Fossae Deck (138)
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1

What are the 4 boundaries of the temporal fossa?

-Posterior and superior
-anterior
-lateral
-inferior

2

Posterior and superior boundaries of the temporal fossa boundaries

Temporal lines

3

Anterior boundary of the temporal fossa

Frontal and zygomatic bones

4

Lateral boundaries of the temporal fossa

Zygomatic arch

5

Inferior boundaries of the temporal fossa

Infratemporal crest of the sphenoid (best seen when the zygomatic arch has been removed)

6

The contents of the temporal fossa

-temporalis muscle and fascia
-deep temporal vessels and nerves
-superficial temporal vessels
-auriculotemporal nerve

7

Infratemporal fossa anterior border

Posterior aspect of maxilla

8

Medial boundary of the infratemporal fossa

Lateral pterygoid plate

9

Lateral boundary of the infratemporal fossa

Ramus of the mandible

10

Superior boundary of the infratemporal fossa

Inferior surface of the greater wing of the sphenoid

11

Posterior boundary of the infratemporal fossa

The tympanic plate and the mastoid and styloid processes of the temporal bone

12

Inferior boundary of the infratemporal fossa

Site of attachment of the medial pterygoid to the mandible near its angle

13

What type of joint is the Temporomandibular joint

A synovial joint; modified hinge joint

14

Articulate surfaces of the temporomandibular joint

-mandibular condyle
-mandibular fossa and articulate tubercle of the temporal bone

15

What is an articulate disc composed of?

Fibrocartilage

16

What divides the temporomandibular joint into two compartments

Articulate disc

17

What are the two compartments of the temporomandibular joint?

-superior compartment
-inferior compartment

18

Superior compartment of the temporomandibular joint

Responsible for gliding movements of the protrusion and recursion

19

Inferior compartment of the temporomandibular joint

Responsible for hinge movements of depression and elevation

20

What is the articular disc peripherally attached to?

The joint capsule

21

What does the articular disc attach to anteriomedially?

Tendon of the lateral pterygoid *******

22

Joint or articular capsule of the temporomandibular joint attaches superiorly to what?

Articular tubercle and the margins of the mandibular fossa

23

Joint or articular capsule of the temporomandibular joint attaches inferiorly to what?

The neck of the mandible

24

Synovial membrane of the temporomandibular joint

Lines the joint capsule above and below the articular disc, but does not cover the articular disc

25

Temporomandibular joint ligaments

-temporomandibular ligament (lateral ligament)
-stylomandibular ligament
-sphenomandibular ligament

26

Where does the phenomandibular ligament come from?

Sphenoid bone

27

What are the muscles of mastication?

-temporalis
-masseter
-medial pterygoid
-lateral pterygoid

28

What are the muscles of mastication innervated by?

Branches of V3

29

Origin of the temporalis

Inferior temporal line, temporal fossa, temporalis fascia

30

Insertion of temporalis muscle

Coronoid process and anterior surface of the ramus of the mandible ****