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Biceps Brachii
Triceps Brachii
Latissimus Dorsi
Brachioradialis
Latissimus Dorsi
Longissimus
Brachialis
Coracobrachialis
Biceps Brachii
Rectus Femoris
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MUSCLE
REGION
ORIGIN
INSERTION
PRIMARY
ACTION
SECONDARY
ACTION
INNERVATION
Accessory nerve (XI), Ventral rami C3 to C4, Dorsal rami C3 to T12
(C3, C4)
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Scapular elevation, Scapular depression, Scapular lateral rotation
Scapula retraction
Lateral 1/3 clavicle, Acromion of the scapula, Spine of the scapula
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Superior nuchal line, External occipital pertuberance, Ligamentum nuchae, C7 to T12 spinous processes
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Upper Limb, Torso
Trapezius
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dorsal rami of adjacent spinal nerves
(C1, C2, C3, 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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contralateral lumbar to cervical rotation, ipsilateral lumbar to cervical side flexion
lumbar to cervical extension
Spinous processes of C2 to L5
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posterior sacrum, posterior superior iliac spine, posterior sacroiliac ligaments, mamillary processes of lumbar vertebrae, transverse processes of T1 to T12, articular processes of C3 to C7
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Torso
Multifidus
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dorsal rami of adjacent spinal nerves
(C1, C2, C3, 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
Transverse processes of T1 to T12, ribs 3 to 12, transverse processes of C2 to C6, mastoid process of temporal bone
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Spinous processes T11 to L5, iliac crest, sacral ligaments, transverse processes of L1 to L5, thoracolumbar fascia, transverse processes of T1 to T6, articular processes of C4 to C7
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Torso
Longissimus
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anterior rami of L1 to L4
(L2, L3)
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Hip flexion
lesser trochanter of femur, Capsule of hip joint
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bodies and transverse processes of T12 to L5, T12 to L5 intervening intervertebral discs
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Lower Limb, Torso
Psoas Major
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ventral rami of the T12 subcostal nerve, L1 to L4 spinal nerve
(T12, L1, L2, L3, L4)
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Ipsilateral lumbar rotation
Lumbar stabilizer
iliac crest, iliolumbar ligament, transverse processes of lumbar vertebrae
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medial half of lower border of rib 12
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Torso
Quadratus lumborum
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Long thoracic nerve
(C5, C6, C7)
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Scapula lateral rotation
Scapula protraction
Medial border of the scapula
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1st to 9th ribs, 1st to 8th intercostal fascia
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Upper Limb, Torso
Serratus Anterior
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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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tibial nerve
(S1, S2)
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Knee flexion
Ankle plantarflexion
posterior calcaneus via tendocalcaneus
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medial and lateral femoral condyles, capsule of knee joint
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Lower Limb
Gastrocnemius
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Radial nerve
(C6, C7, C8)
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Shoulder extension
Elbow extension
Olecranon process
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Infraglenoid tubercle, Posterior humerus
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Upper Limb
Triceps Brachii
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Thoracodorsal nerve
(C6, C7, C8)
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Shoulder extension, Shoulder adduction, Shoulder internal rotation
Floor of the inter tubercular
groove
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Thoracolumbar fascia, 8th to 12th ribs, Fascia to inferior angle of scapula
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Upper Limb, Torso
Latissimus Dorsi
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ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
Show nerve
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 T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
Show nerve
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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MUSCULOSKELORDLE
Torso and Neck Mode
Abductor Digiti Minimi
Upper Limb
Abductor Digiti Minimi
Lower Limb
Abductor Hallucis
Lower Limb
Abductor Pollicis Brevis
Upper Limb
Abductor Pollicis Longus
Upper Limb
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