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Head and Neck Muscles - Anatomy & Physiology

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Termini in questo insieme (11)

  • Frontalis (Epicranius frontal belly)

    Origin: Aponeurosis
    Insertion: Skin of eyebrows
    Action: Raises eyebrows and wrinkles forehead

  • Occipitalis (Epicranius occipital belly)

    Origin: Occipital bone and temporal bone
    Insertion: Aponeurosis
    Action: Pulls scalp posteriorly

  • Orbicularis oculi

    Origin: Frontal bone and maxilla
    Insertion: Tissue of eyelids
    Action: Closes eyes

  • Zygomaticus

    Origin: Zygomatic bone
    Insertion: Skin at corner of mouth
    Action: Raises corners of mouth

  • Orbicularis oris

    Origin: Maxilla and mandible
    Insertion: Skin around mouth
    Action: Closes lips

  • Mentalis

    Origin: Mandible
    Insertion: Skin of chin
    Action: Wrinkles chin

  • Masseter

    Origin: Zygomatic bone
    Insertion: Mandible
    Action: Elevates mandible

  • Temporalis

    Origin: Temporal bone
    Insertion: Mandible
    Action: Elevates and retracts mandible

  • Buccinator

    Origin: Maxilla and mandible
    Insertion: Orbicularis oris
    Action: Compresses cheek

  • Sternocleidomastoid

    Origin: Sternum and clavicle
    Insertion: Temporal bone
    Action: Flexes head and laterally rotates head

  • Splenius capitis

    Origin: Cervical vertebra #7 and thoracic vertebrae (T1-T6)
    Insertion: Occipital bone and cervical vertebrae 2-4 (C2-C4)
    Action: Extends or hyperextends head