1	Neck Sternocleidomastoid Origin: Medial clavicle and manubrium of sternum Insertion: Mastoid process Action: Both sides flex the neck ; Right side rotates to the left and lateral flexion to the right; Left side rotates to the right and lateral flexion to the lef Nerve: Spinal accessory (11^th Cranial, C2-3)
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4	Neck Splenius Capitis Origin: Lower half of the ligamentum Nuchae and the spinous processes of the 7^th Cervical and upper 3 or 4 Thoracic Insertion: Mastoid process and occipital bone Action:Both sides: Extension of the head and neck; Right side: rotation and lateral flexion right Nerve: Posterior lateral branches of cervical nerves (C4-8)
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6	Neck Splenius Cervicis Origin: Spinous processes of 3^rd – 6^th Thoracic vertebrae Insertion: Transverse processes of the 1^st three cervical vertebrae Action: Both sides: Extension of the head and neck; Right side: rotation and lateral flexion right; Left side: rotation and lateral flexion left. Nerve: Posterior lateral branches of cervical nerves (C4-8)
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8	Neck Scalenus Anterior Origin: Transverse Processes of C3-6 Insertion: Inner border and upper surface of 1^st rib Action: Elevates 1^st rib; Flexion, lateral flexion and contralateral rotation of neck. Nerve:Ventral rami of C3-8
9	Neck Scalenus Posterior Origin: Transverse processes of C5-7 Insertion:Outer surface of 2^nd rib Action:Elevates 2^nd rib; flexion, lateral flexion and slight contralateral rotation of neck Nerve: Ventral rami of C6-8
10	Neck Scalenus Medius Origin: Transverse Processes of C2-7 Insertion:Superior surface of 1^st rib Action: Elevates 2^nd rib; flexion, lateral flexion and slight contralateral rotation of neck Nerve:Ventral rami of C3-8
11	Vertebrae Erector Spinae Muscles Iliocostalis Longissimus Spinalis
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14	Erector Spinae Muscles Iliocostalis Origin: Thoracolumbar aponeurosis from sacrum, posterior ribs Insertion: Posterior ribs, cervical transverse processes Action: Extension and Lateral flexion of the spine Nerve: Posterior branches of the spinal nerves.
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17	Erector Spinae Muscles Longissiumus Origin: Thoracolumbar aponeurosis from sacrum, lumbar and thoracic transverse processes. Insertion: Cervical and thoracic transverse processes, mastoid process Action: Extension and Lateral flexion of the spine Nerve: Posterior branches of the spinal nerves.
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20	Erector Spinae Muscles Spinalis Origin: Ligamentum nuchae, cervical and spinous processes Insertion: cervical and thoracic spinous processes, occipital bone Action: Extension and Lateral flexion of the spine Nerve: Posterior branches of the spinal nerves.
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23	Abdominal Muscles Rectus Abdominis Internal Oblique External Oblique Transversus Abdominis
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27	Abdominal Muscles Rectus Abdominis Origin: Crest of pubis Insertion: Cartilage of the 5^th, 6^th, and 7^th ribs and the xiphoid process Action: Both sides: Lumbar Flexion; Right Side: lateral flexion right; Left Side: lateral flexion left Nerve: Intercostal (T7-12)
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29	Abdominal Muscles External Oblique Origin: Borders of the lower 8 ribs at the side of the chest, dovetailing with the serratus anterior Insertion: Anterior ½ of the crest of the ilium, the inguinal ligament, the crest of the pubis, and the fascia of the rectus abdominis muscle at the lower front Action: Both sides: Lumbar Lateal Flexion; Right Side: lateral flexion right, rotation Left; Left Side: Lumbar lateral flexion left and rotation right Nerve: Intercostal (T8-12), iliohypogastric (T12, L1), ilioinguinal (L1)
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31	Abdominal Muscles Internal Oblique Origin: Upper ½ of the inguinal ligament, anterior 2/3 of the crest of the ilium and the lumbar fascia Insertion: Costal cartilages of the 8^th, 9^th, and 10^th ribs and linea alba Action: Both sides: Lumbar lateral Flexion; Right Side: lateral flexion right, rotation right; Left Side: Lumbar lateral flexion left and rotation left Nerve:Intercostal (T8-12), iliohypogastric (T12, L1), ilioinguinal (L1)
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33	Abdominal Muscles Transversus Abdominis Origin: Outer 1/3 of the inguinal ligament, Inner rim of the iliac crest, Inner surface of the cartilage of the lower 6 ribs, Lumbar fascia Insertion: Crest of the pubis and the iliopectineal line, Abdominal aponeurosis to the linea alba Action: Forced expiration by pulling the abdominal wall inward Nerve: Intercostal (T8-12), iliohypogastric (T12, L1), ilioinguinal (L1)
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35	Abdominal Muscles Quadratus Lumborum Origin: Posterior inner lip of the iliac crest Insertion: Approximately ½ the length of the lower border of the 12^th rib and the transverse process of the upper four lumbar vertebrae Action: Lateral flexion to the same side, stabilizes pelvis and lumbar spine Nerve: T12, L1 branches
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