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MUSCLE

REGION

ORIGIN

INSERTION

PRIMARY 

ACTION

SECONDARY 

ACTION

INNERVATION

posterior branch of the obturator nerve
(L3, L4)

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Hip lateral rotation

trochanteric fossa of femur

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external surface of obturator membrane

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Lower Limb

Obturator Externus

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Femoral nerve
(L2, L3, L4)

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Knee extension

base and lateral border of patella via quadriceps tendon, tibial tuberosity via patellar ligament/tendon

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intertrochanteric line of femur, greater trochanter of femur, gluteal tuberosity of femur, proximal 1/2 lateral lip of linea aspera of femur

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Lower Limb

Vastus Lateralis

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femoral nerve, obturator or accessory obturator nerve
(L1, L2, L3)

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Hip flexion, Hip medial rotation

Hip adduction

pectineal line of femur

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pectineal line of pubis, iliopubic eminence, pubic tubercle

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Lower Limb

Pectineus

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lateral plantar nerve
(T1)

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5th MTP abduction

base of 5th proximal phalanx

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medial and lateral tubercles of tuberosity of calcaneus, plantar aponeurosis

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Lower Limb

Abductor Digiti Minimi

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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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nerve to the quadratus femoris
(L4, L5, S1)

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Hip lateral rotation

quadrate tubercle of femur

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ischial tuberosity

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Lower Limb

Quadratus Femoris

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anterior division of the obturator nerve
(L2, L3)

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Hip adduction, Medial tibial rotation

Knee flexion

medial surface of proximal shaft of tibia via pes anserine

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anterior body of pubis, ischiopubic ramus

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Lower Limb

Gracilis

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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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tibial nerve
(L5)

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Knee flexion

Lateral tibial rotation

posterior tibia superior to the soleal line

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lateral femoral condyle

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Lower Limb

Popliteus

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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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tibial nerve
(L4, L5)

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Ankle plantarflexion

Ankle inversion

all tarsal bones except talus, base of 2nd to 4th metatarsal

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proximal 1/2 tibia distal to soleal line, medial proximal 2/3 fibula, adjacent interosseous membrane

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Lower Limb

Tibialis Posterior

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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, ipsilateral lumbar to thoracic rotation, expiration

Lumbar to thoracic flexion

lateral 2/3 of inguinal ligament, middle lip of anterior 2/3 iliac crest, body of pubis, pubic crest, thoracolumbar fascia (TLF) - most fibres

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9th to 12th ribs

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Torso

Internal Oblique

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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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Upper Limb Musculoskelordle
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Biceps Brachii

Triceps Brachii

Latissimus Dorsi

Brachioradialis

Latissimus Dorsi

Longissimus

Brachialis

Coracobrachialis

Biceps Brachii

Rectus Femoris

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