Muscles Actions Origins Insertions - Muscle Origin Insertion Molar region of mandible Body of mandible Galea aponeurosis occipital bone Zygomatic arch

Muscles Actions Origins Insertions - Muscle Origin...

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Muscle Origin Insertion Muscle Action Muscles: Head and Neck Muscles: Head and Neck Buccinator Molar region of mandible Orbicularis oris Buccinator Chewing movements Depressor anguli oris Body of mandible Skin at the angle of the mouth Depressor anguli oris draws corner of mouth downward Epicranius (frontal belly/frontalis) Galea aponeurosis skin of eyebrows Epicranius (frontal belly/frontalis) raises eybrows Epicranius (occipital belly/occipitalis) occipital bone galea aponeurosis Epicranius (occipital belly/occipitalis) pulls scalp posteriorly Masseter Zygomatic arch Angle of mandible Masseter Elevates mandible Mentalis Mandible Skin of chin Mentalis Protrudes lower lip Orbicularis oculi ligaments around orbit Tissue of the eyelid Orbicularis oculi closes eyes Orbicularis oris muscle fibers associated with lips Skin at the angle of the mouth Orbicularis oris closes mouth Platysma Fascia of chest Skin at the corner of the mouth Platysma Depresses the mandible Sternocleidomastoid Manubrium or sternum Mastoid process of temporal bone Sternocleidomastoid Forward Flexion of the neck Temporalis Temporal fossa Coronoid process of mandible Temporalis Elevates mandible Trapezius occipital bone Acromion of scapula Trapezius Elevates scapula Zygomaticus major Zygomatic bone Skin at the corner of the mouth Zygomaticus major Smiling Depressor labii inferioris Mandible Skin at superior corner of lip Muscles: Trunk Muscles: Trunk External intercostals Inferior border of ribs Superior border of ribs
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  • Fall '15
  • Occipital bone, Supraspinous fossa of scapula, Muscles of the upper limb, Linea Aspera, Infraspinous fossa of scapula

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