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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

dorsal rami of adjacent spinal nerves
(C2, C3, C4, C5, C6, C7, C8, T1, T2, T6, T7, T8, T9, T10)

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contralateral thoracic to cervical rotation

thoracic to cervical extension

spinous processes of C6 to T2, spinous processes of C2 to C6, occipital bone between superior & inferior nuchal lines

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Transverse processes of T6 to T10, transverse processes of T1 to T6, articular processes of C4 to C7

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Torso

Semispinalis

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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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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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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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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 T2 to T6
(T2, T3, T4, T5, T6)

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Inspiration

lateral to angles of 2nd to 5th ribs

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ligamentum nuchae, spinous processes C7 to T3

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Torso

Serratus Posterior Superior

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ventral rami of C3 to C8
(C3, C4, C5, C6, C7, C8)

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1st rib elevation

Cervical ipsilateral flexion

1st rib

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transverse processes of C1 to C7 vertebrae

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Torso

Middle Scalene

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ventral rami of C4 to C6
(C4, C5, C6)

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Cervical Ipsilateral lateral flexion and contralateral rotation

Cervical flexion

1st rib

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transverse processes of C3 to C6 vertebra

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Torso

Anterior Scalene

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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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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 T2 to T6
(T2, T3, T4, T5, T6)

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Inspiration

lateral to angles of 2nd to 5th ribs

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ligamentum nuchae, spinous processes C7 to T3

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Torso

Serratus Posterior Superior

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MUSCULOSKELORDLE

Anatomy muscle guessing game

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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Upper Limb Musculoskelordle
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Torso Musculoskelordle

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