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Transcript 
 Type….
 Articulating
bones
 Capsule
 Synovial
membrane
 Articular disc
 Ligaments.
 Movements.
2
•Type :- synovial,condylar.
•Articulating bones :-articular surfaces are
covered by fibro-cartilage.
•Mandibular
head
•Mandibular fossa
&tubercle
4
Types of Joints:
Synovial
Capsule of
TMJ
Articular disc
Lateral pterygoid
muscle
7
Lateral tempromandibular
ligament
capsule

The lateral tempromandibular ligament
Sphenomandibualr
ligament
Ligaments
Stylomandibualr
ligament
Anterior
posterior
Auriculotemporal
nerve
Sphenomandibular
Ligament
Maxillary A.
Inf.alveolar N.&Vs.
Medial aspect of TMJ
12
Articulation
1. above : the articular tubercle and the
mandibular fossa of the temporal bone
2. below : the head (condyloid process) of the
mandible
 Type: synovial
 Enumerate ligament
The lateral temporomandibular ligament,
The sphenomandibular ligament ,
The stylomandibular ligament
 Nerve supply: Auriculotemporal and masseteric
branches of the mandibular nerve





Origin: greater wing of sphenoid and lateral
ptrygoid plate
Insertion: neck of the mandible and articular
disc
Nerve supply: mandibular nerve
Action: pull neck of mandible forward
 All
muscles of mastication
innervated by mandibular nerve



Protrusion of the mandible is brought about by contraction of
the………….
A.
Lateral pterygoid muscle
B.
Temporalis muscle
C.
Masseter muscle
D.
Suprahyoid muscle
The Chewing movement of the mandible is brought about by
contraction of the………….
A.
Lateral and medial pterygoid muscles
B.
Temporalis muscle
C.
Masseter muscle
D.
Suprahyoid muscle
the medial ptrygoid muscle ----------- the mandible
1.
Protrude
2.
Retract
3.
Depress
4.
Elevate




the lateral ptrygoid muscle ----------- the mandible
1.
Protrude
2.
Retract
3.
Depress
4.
Elevate
the posterior fibers of temporalis muscle ----------- the mandible
1.
Protrude
2.
Retract
3.
Depress
4.
Elevate
the masseter muscle ----------- the mandible
1.
Protrude
2.
Retract
3.
Depress
4.
Elevate
the digastric and geniohyoid muscles ----------- the mandible
1.
Protrude
2.
Retract
3.
Depress
4.
Elevate
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