Splenius

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Other Names Neck (Rear) Neck Extensors Heads Cervicis Splenius Capitis Splenius Movement Neck (Atlantooccipital & Atlantoaxial) Extension Both Sides [2 ] Rotation Rotation right [Right 2 ] Rotation left [Left 2 ] Lateral Flexion Lateral flexion right [Right 2 ] Lateral flexion left [Left 2 ] Spine (Cervical) Extension Both Sides [1, 2 ] Rotation Rotation right [Right 1, 2 ] Rotation left [Left 1, 2 ] Lateral Flexion Lateral flexion right [Right 1, 2 ] Lateral flexion left [Left 1, 2 ] Attachments Origin Spine Thoracic Vetebrae (T3-6) [1 ] Spinous Processes Thoracic Vetebrae (T3-4) [2 ] Spinous Processes Cervical Verebrae (C7) [2 ] Spinous Processes Ligamentum Nuchae (Posterior Neck Ligaments) [2 ] Lower Half Insertion Spine [1 ] Cervical Vetebrae (C1-3) Transverse Processes Skull [2 ] Mastoid Process Occipital Bone Related Muscles Trapezius, Upper Fibers Sternocleidomastoid Erector Spinae