TMJ Muscles Flashcards
Medial Pterygoid
Medial Surface of lateral pterygoid plate and maxilla tuberosity
Medial surface of mandible near angle
Mandibular of trigeminal
Close mouth, Ipsilateral Lateral Deviation
Masseter
Superficial: Anterior 2/3 of lower zygomatic arch
Deep: medial surface of zygomatic
Lateral surface of coronoid process of mandible, upper 1/2 of ramus and mandible angle
Masseteric nerve from anterior trunk of mandibular of trigeminal
Close mouth, Retraction, Lateral Deviation
Temporalis
Temporal cranial fossa
Apex, anterior and posterior borders of mandibular ramus
Anterior/posterior deep temporal nerves, which branch from anterior of mandib of trigeminal
Close mouth, Protrusion=anterior, Retraction = posterior, Lateral deviation
Lateral Pterygoid
Greater wing of sphenoid and lateral pterygoid plate
Neck of mandible and articular cartilage
Mandibular of trigeminal
Open Mouth, Contra Lateral Deviation
Mylohyoid (Supra)
Medial Surface of mandible
Body of Hyoid
Mylohyoid branch of trigeminal nerve and mandib division
Open mouth, protrusion/retraction of mandible
Geniohyoid (supra)
Mental spine of mandible
Body of Hyoid
Ventral ramus of C1 via hypoglossal
Open mouth, protrusion/retraction
Stylohyoid (Supra)
Styloid process of temporal bone
Body of hyoid
Facial Nerve
Protrusion/Retraction
Digastric (Supra)
Internal surface of mandible and mastoid process of temporal bone
Intermediate tendon to hyoid bone
Anterior: mandib division of trigeminal
Posterior: facial nerve
Protrusion/Retraction
Sternohyoid (Infra)
Manubrium and medial end of clavicle
Body of Hyoid
Ansa Cervicalis
Depress hyoid, assist in speech/mastication
Omohyoid (infra)
Superior angle of scapula
Inferior body of hyoid bone
Ansa cervicalis
Depress hyoid
Sternothyroid (infra)
Posterior surface of manubrium
Thyroid cartilage
Ansa cervicalis
Depresses the hyoid and elevates larynx
Thyrohyoid (infra)
Thyroid Cartilage
Inferior body and greater horn of hyoid
C1 via hypoglossal nerve
Depress the hyoid, larynx
