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Back and Neck
Muscles of the Back and Posterior Neck
Muscle | Action | Orgin | Insertion | Nerve |
---|---|---|---|---|
Trapezius | moves the scapula | Spinous processes of C7 to T12 | Clavicle and Scapula | Cranial Nerve |
Latissimus Dorsi | moves the humerus | T7 to iliac crest | Humerus | Thoracodorsal Nerve |
Levator Scapula | moves the scapula | Transverse processes of C1 to C4 | Superior angle of the scapula | Dorsal Scapular Nerve |
Rhomboideus Minor | moves the scapula | spinous processes of C7 to T1 | Spine of the scapula | Dorsal Scapular Nerve |
Rhomboideus Major | moves the scapula | Spinous processes of T2 to T5 | Vertebral border of the scapula | Dorsal Scapular Nerve |
Serratus Posterior Superior | elevates the ribs | Spinous processes of C7 to T2 | 2nd thru 5th ribs | intercostal nerves |
Serratus Posterior Inferior | depresses ribs | Spinous processes of T11 to L3 | last 4 ribs | Intercostal Nerves |
Splenius Capitis | allows you to move head and neck | C7 to T3 | Occipital bone | Cervical Nerve |
Splenius Cervicis | allows you to move head and neck | T3 to T6 | Transverse processes of C1 to C3 | Cervical Nerve |
Spinalis (inside) | move the spine | Spinous processes of cervical & thoracic | Spinous process of cervical & thoracic | Spinal Nerve |
Longissimus (middle) | move the spine | Transverse process of thoracic & lumbar | Transverse process of cervical & thoracic | Spinal Nerve |
Iliocostalis | move the spine | Posterior ribs | Transverse process of cervical | Spinal Nerve |
Semispiralis | moves the spine | Transverse process of cervical & thoracic | Spinous process of cerical & thoracic | Spinal Nerve |
Multifidus | moves the spine | Transverse process of cervical, thoracic, lumbar & surface of sacrum | Spinous process of all vertebrae | Spinal Nerve |
Rototores | allows you to rotate the spine | Transverse process of all vertebrae | Spinous process of all vertebrae | Spinal Nerve |
Interspinalis | moves the spine | Spinous process of all vertebrae | Spinous process of all vertebrae | Spinal Nerve |
Inertravsvarii | moves the spine | Transverse process of all vertebrae | Transverse process of all vertebrae | Spinal Nerve |
Quadratus Lumborum | rotate and raise the hips | iliac crest | Transverse process of lumbar | T12 and L1 Spinal Nerves |
Suboccpituals | allow the neck to bend forward and backward | C2 | Occipital bone | C1 Spinal Nerve |