MUSILE OF MASTICATION/
MUSCLE ACTING ON
MANDIBLED TMJ)
Reference : Mccre's
-
Anatomy
-
Sachin Shah
UIST Medical Collegee
Nepal
, MUSCLES OF MASTICATION
the muscles responsible for movements of the mandible
These primary
-
are
(jaw) during chewing
.
-
All arises From the 1st Pharyngeal arch and are
supplied by the
of the (v3 : motor root)
mandibular division trigeminal nerve
-
-
4 muscles : -
i) Temporalis
ii Masseter
iii) Medial Dterygoid
iv Lateral Pterygoid
i) Temporalis
muscle
Triangular/Fan shaped
-
it is
attachment : -Broad end attachment as triangular muscles
Origin/Proximal
·
.
-
Floor of temparal Fossa
surface
-
Deep of temporal Fascia
Insertion / Distal attachment -
:
·
-
Narrow attachment to tip and medial surface of coronoid
and anterior border of ramus of mandible
process
· Nerve supply :-
-
Deep temporal nerves [Branch of anterior trunk of mandibular
Nervel CN v3) =
Action :
·
-
-
Elevates mandible , closing jaws
-
posterior , more horizental libers are
10 retractors of mandible .
MUSCLE ACTING ON
MANDIBLED TMJ)
Reference : Mccre's
-
Anatomy
-
Sachin Shah
UIST Medical Collegee
Nepal
, MUSCLES OF MASTICATION
the muscles responsible for movements of the mandible
These primary
-
are
(jaw) during chewing
.
-
All arises From the 1st Pharyngeal arch and are
supplied by the
of the (v3 : motor root)
mandibular division trigeminal nerve
-
-
4 muscles : -
i) Temporalis
ii Masseter
iii) Medial Dterygoid
iv Lateral Pterygoid
i) Temporalis
muscle
Triangular/Fan shaped
-
it is
attachment : -Broad end attachment as triangular muscles
Origin/Proximal
·
.
-
Floor of temparal Fossa
surface
-
Deep of temporal Fascia
Insertion / Distal attachment -
:
·
-
Narrow attachment to tip and medial surface of coronoid
and anterior border of ramus of mandible
process
· Nerve supply :-
-
Deep temporal nerves [Branch of anterior trunk of mandibular
Nervel CN v3) =
Action :
·
-
-
Elevates mandible , closing jaws
-
posterior , more horizental libers are
10 retractors of mandible .
