Cambios

The muscles of mastication are well developed.  

The muscles of mastication are well developed.  

===Jaw Opening Muscles===

===Músculos que Abren la Mandíbula===

The '''Digastricus muscle''' is the 'jaw opening' muscle. Its origin is the '''paracondylar process''' of the '''[[Skull and Facial Muscles - Anatomía & Fisiología#Occipital Bone (os occipitale)|occipital bone]]'''. It inserts at the angle of the '''[[Skull and Facial Muscles - Anatomía & Fisiología#Mandible (mandibula)|mandible]]'''. The muscle has two bellies; The '''caudal half''' from the second visceral arch innervated by the '''facial''' nerve ([[Nervios Craneales - Anatomía & Fisiología|CN VII]]) and the '''cranial half''' from the first visceral arch, innervated by the '''mandibular''' branch of the '''trigeminal''' nerve ([[Nervios Craneales - Anatomía & Fisiología|CN V3]]).

The '''Digastricus muscle''' is the 'jaw opening' muscle. Its origin is the '''paracondylar process''' of the '''[[Skull and Facial Muscles - Anatomía & Fisiología#Occipital Bone (os occipitale)|occipital bone]]'''. It inserts at the angle of the '''[[Skull and Facial Muscles - Anatomía & Fisiología#Mandible (mandibula)|mandible]]'''. The muscle has two bellies; The '''caudal half''' from the second visceral arch innervated by the '''facial''' nerve ([[Nervios Craneales - Anatomía & Fisiología|CN VII]]) and the '''cranial half''' from the first visceral arch, innervated by the '''mandibular''' branch of the '''trigeminal''' nerve ([[Nervios Craneales - Anatomía & Fisiología|CN V3]]).

===Jaw Closing Muscles===

===Músculos que Cierren la Mandíbula===

All jaw closing muscles are derived from the first visceral arch and are innervated by the '''mandibular''' branch of the '''trigeminal''' nerve ([[Nervios Craneales - Anatomía & Fisiología|CN V3]]).

All jaw closing muscles are derived from the first visceral arch and are innervated by the '''mandibular''' branch of the '''trigeminal''' nerve ([[Nervios Craneales - Anatomía & Fisiología|CN V3]]).

The '''masseter muscle''' and the contralateral medial and lateral '''pterygoids''' are involved in the lateral translation of the mandible.

The '''masseter muscle''' and the contralateral medial and lateral '''pterygoids''' are involved in the lateral translation of the mandible.

==Jaw Articulation==

==Articulación de la Mandíbula==

[[Image:Jaw Articulation.jpg|thumb|right|250px|Jaw Articulation (horse) - Copyright RVC]]

[[Image:Jaw Articulation.jpg|thumb|right|250px|Jaw Articulation (horse) - Copyright RVC]]

===Temperomandibular Joint===

===Articulación Temporomandibular===

The articulation between the condylar process of the [[Skull and Facial Muscles - Anatomía & Fisiología#Mandible (mandibula)|mandible]] and the mandibular process of the skull. It is a compartmentalised joint for rotational movement and lateral slide (grinding). It is a '''synovial joint'''. Caudal dislocation is prevented by a prominent retro-articular process (enlargement of the fossa).

The articulation between the condylar process of the [[Skull and Facial Muscles - Anatomía & Fisiología#Mandible (mandibula)|mandible]] and the mandibular process of the skull. It is a compartmentalised joint for rotational movement and lateral slide (grinding). It is a '''synovial joint'''. Caudal dislocation is prevented by a prominent retro-articular process (enlargement of the fossa).

==Enlaces==

==Enlaces==

'''Comprobar tus conocimientos con los [[Cavidad Oral - Anatomía & Fisiología - Flashcards#Mastication Flashcards|Mastication Flashcards]] and the  

'''Comprobar tus conocimientos con los [[Cavidad Oral - Anatomía & Fisiología - Flashcards#Masticación - Anatomía & Fisiología - Flashcards|Mastication Flashcards]] and the  

[[Facial_Muscles_-_Musculoskeletal_-_Flashcards|Facial Muscles Flashcards]].'''

[[Facial_Muscles_-_Musculoskeletal_-_Flashcards|Facial Muscles Flashcards]].'''