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MUSCLE
REGION
ORIGIN
INSERTION
PRIMARY
ACTION
SECONDARY
ACTION
INNERVATION
medial plantar nerve
(S1, S2)
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1st MTP abduction
base of 1st proximal phalanx
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medial tubercle of tuberosity of calcaneus, plantar aponeurosis
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Lower Limb
Abductor Hallucis
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left phrenic nerve, right phrenic nerve, ventral rami of C3 to C5
(C3, C4, C5)
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Raising intra-abdominal pressure
Inspiration
central tendon
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xiphoid process of sternum, costal cartilages of 6th to 10th ribs, 6th to 12th ribs, bodies of upper lumbar vertebrae & IV discs medial & lateral arcuate ligaments
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Torso
Diaphragm
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ventral rami of adjacent spinal nerves
(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
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Inspiration
Upper border of the 2nd to 12th ribs
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Lower border of 1st to 11th ribs
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Torso
Intercostals
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Posterior interosseous branch of the radial nerve
(C7, C8)
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1st CMC extension
1st CMC abduction
Base of 1st metacarpal, Trapezium, Abductor pollicis brevis, Fascia of the thenar eminence
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Posterior ulna, Middle 1/3 posterior radius, Interosseous membrane
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Upper Limb
Abductor Pollicis Longus
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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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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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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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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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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)
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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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Radial nerve
(C5, C6)
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Forearm supination, Forearm pronation
Elbow flexion
Lateral surface of radius just above the radial styloid
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Supracondylar ridge of humerus
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Upper Limb
Brachioradialis
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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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MUSCULOSKELORDLE
Anatomy muscle guessing game
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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