.
MUSCLE
REGION
ORIGIN
INSERTION
PRIMARY
ACTION
SECONDARY
ACTION
INNERVATION
ventral rami of C3 to C6
(C3, C4, C5, C6)
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Ipsilateral cervical lateral flexion, contralateral cervical rotation
Cervical flexion
transverse processes of C5 to C6, bodies C2 to C4, anterior tubercle of atlas
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Bodies of T1 to T3, Bodies of C5 to C7, transverse processes of C3 to C5
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Torso
Longus Colli
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ventral rami of C1 to C2
(C1, C2)
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Head ipsilateral lateral flexion
occipital bone
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transverse process of C1 (atlas)
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Torso
Rectus Capitis Lateralis
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Medial pectoral nerve, Lateral pectoral nerve
(C5, C6, C7, C8, T1)
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Shoulder flexion, Shoulder extension
Shoulder adduction, Shoulder internal rotation
Lateral lip of the intertubercular groove of the humerus
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Medial 1/2 anterior clavicle, Anterior manubrium, Body of the sternum, Anterior 1st to 6th ribs, Aponeurosis of the external oblique
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Upper Limb, Torso
Pectoralis Major
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Musculocutaneous nerve
(C5, C6)
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Forearm supination, Shoulder flexion
Elbow flexion
Radial tuberosity, Bicipital aponeurosis
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Corocoid process, Supraglenoid tubercle
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Upper Limb
Biceps Brachii
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ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
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Ipsilateral lumbar to thoracic lateral flexion, contralateral lumbar to thoracic rotation, expiration
Lumbar to thoracic flexion
outer lip of anterior 2/3 iliac crest, linea alba, pubic tubercle, thoracolumbar fascia (TLF)
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5th to 12th ribs, Costal cartilages of 5th to 10th ribs
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Torso
External Oblique
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deep fibular (peroneal) nerve
(L4, L5)
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Ankle dorsiflexion
medial cuneiform, base of 1st metatarsal
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lateral proximal 2/3 tibia, adjacent interosseous membrane
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Lower Limb
Tibialis Anterior
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ventral rami of T1 to T12
(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
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Expiration
2nd to 6th costal cartilages
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body of sternum, xiphoid process, 4th to 7th costal cartilages
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Torso
Transversus Abdominis
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ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
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Core stabilizer
Lumbar to thoracic flexion
pubic symphysis, pubic crest
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xiphoid process, Costal cartilages of 5th to 7th ribs
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Torso
Rectus Abdominis
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dorsal rami of adjacent spinal nerves
(C4, C5, C6, C7, C8, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, L1, L2, L3, L4, L5)
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Ipsilateral lumbar to cervical lateral flexion, Ipsilateral lumbar to cervical rotation
lumbar to cervical extension
near angles of 1st to 12th ribs, transverse processes of C4 to C7
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spinous processes T11 to L5, iliac crest, sacrum/sacral ligaments, transverse processes of L1 to L4, thoracolumbar fascia (TLF), medial to angles of 1st to 12th ribs
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Torso
Iliocostalis
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ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
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Ipsilateral lumbar to thoracic lateral flexion, contralateral lumbar to thoracic rotation, expiration
Lumbar to thoracic flexion
outer lip of anterior 2/3 iliac crest, linea alba, pubic tubercle, thoracolumbar fascia (TLF)
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5th to 12th ribs, Costal cartilages of 5th to 10th ribs
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Torso
External Oblique
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ventral rami of T1 to T12
(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
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Expiration
2nd to 6th costal cartilages
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body of sternum, xiphoid process, 4th to 7th costal cartilages
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Torso
Transversus Abdominis
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ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
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Core stabilizer
Lumbar to thoracic flexion
pubic symphysis, pubic crest
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xiphoid process, Costal cartilages of 5th to 7th ribs
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Torso
Rectus Abdominis
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MUSCULOSKELORDLE
Upper Limb Mode
Abductor Digiti Minimi
Lower Limb
Abductor Digiti Minimi
Upper Limb
Abductor Hallucis
Lower Limb
Abductor Pollicis Brevis
Upper Limb
Abductor Pollicis Longus
Upper Limb
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