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Index
»
Anaphy & Physiology
»
MUSCULAR SYSTEM
»
Muscle of Mastification & Tounge and swallowing muscles
level: Muscle of Mastification & Tounge and swallowing muscles
Questions and Answers List
level questions: Muscle of Mastification & Tounge and swallowing muscles
Question
Answer
Origin:Temporal fossa Insertion:mandible Action:Elevates and draws mandible posteriorly,closes jaw
Temporalis
Origin:zygomatic arch Insertion:Mandible Action:Elevates and pushes mandible anteriorily,closes jaw
Masseter
Origin:Sphenoid Insertion:Mandible and articular disk Action:Pushes mandible anteriorily and depresses mandible,closes jaw
Lateral pterygoid
Origin:sphenoid and tuberosity of maxilla Insertion:Mandible Action:Pushes mandible anteriorily and elevates mandible,close jaw
Medial pterygoid
Origin:Inside tongue Insertion:Inside tongue Action:Changes shape of tongue
Intrinsic
Origin:bones around oral cavity or solf palate Insertion:Onto tongue Action:Moves tongue
Extrinsic
Origin:Base of the skull,mandible Insertion:Hyoid bone Action:Elevates and stabilizes hyoid
Suprahyoid.
Origin:sternum,larynx Insertion:Hyioid bone Action:Depresses or stabilizes hyoid
Infrahyoid
Origin:Skull or soft palate Insertion:Palate,tongue,pharynx Action:Moves soft palate,tongue,pharynx
Soft and palate muscles
Origin:Soft palate and auditory tube Insertion:Pharynx Action:Elevate pharynx
Elevators
Origin:Larynx and hyoid Insertion:Pharynx Action:Constrict pharynx
Constrictors