Posterior Muscles D2
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| Splenius capitis | N: cervical spinal nerves
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| Erector spinae | N: cervical spinal nerves
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| Trapezius | O: occipital bone, ligamentum nuchae, spinous process of C7-T12
I: spine & acromion of scapula, lateral 1/3 of clavicle
N: accessory nerve, spinal nerves C3-C4
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| Levator scapulae | O: transverse processes of C1-C4
I: superior vertebral border of scapula
N: spinal nerves C3-C5
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| Rhomboideus minor | O: spinous processes of C7-T1
I: medial border of scapula, superior to rhoboideus major
N: spinal nerve C5
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| Rhomboideus major | O: spinous processes of T2-T5
I: medial border of scapula from spine to inferior angle
N: spinal nerve C5
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| Supraspinatus | O: supraspinous fossa of scapula
I: greater tubercle of humerus
N: suprascapular nerve
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| Infraspinatus | O: infraspinous fossa of scapula
I: greater tubercle of humerus
N: suprascapular nerve
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| Subscapularis | O: subscapular fossa of scapula
I: lesser tubercle of humerus
N: subscapular nerve
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| Teres minor | O: lateral scapular border
I: greater tubercle of humerus
N: axillary nerve
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| Teres major | O: inferior angle of scapula
I: intertubercular groove of humerus
N: subscapular nerve
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| Latissimus dorsi | O: spines of T7-L5, ribs 8-12, iliac crest, thoracolumbar fascia
I: intertubercular groove of humerus
N: thoracodorsal nerve (C6-C8)
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| Deltoid (multipennate) | O: spine & acromion of scapula, lateral 1/3 of clavicle
I: deltoid tuberosity of humerus
N: axillary nerve
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| Triceps brachii (long,medial,lateral heads) | O: long head- infraglenoid tubercle of scapula; lateral head- proximal end of lateral humeral margin; medial head- distal to radial groove on posterior humeral shaft
I: olecranon process of ulna
N: radial nerve
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| Anconeus | O: lateral epicondyle of humerus
I: lateral aspect of olecranon process of ulna
N: radial nerve
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| Flexor carpi radialis | N: median nerve
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| Palmaris longus | N: median nerve
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| Flexor carpi ulnaris | N: ulnar nerve
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| Flexor digitorum superficialis | N: median nerve
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| Flexor pollicis longus | N: median nerve
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| Flexor digitorum profundus | N: median half- ulnar nerve; lateral half- median nerve
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| Flexor retinaculum | N: median nerve
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| Pronator quadratus | N: median nerve
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| Gluteus maximus | O: dorsal ilium, sacrum, coccyx, lumbodorsal fascia
I: gluteal tuberosity of femur & iliotibial tract
N: inferior gluteal nerve
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| Gluteus medius | O: anterior iliac crest ilium between posterior & anterior gluteal lines
I: greater trochanter of femur
N: superior gluteal nerve
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| Gluteus minimus | O: lateral surface of ilium between inferior & anterior gluteal lines
I: greater trochanter of femur
N: superior gluteal nerve
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| Piriformis | O: anterolateral surface of sacrum
I: greater trochanter of femur
N: spinal nerves L5-S2
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| Superior gemellus | O: ischial spine
I: medial surface of greater trochanter of femur
N: spinal nerves L5-S1
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| Obturator internus | O: obturator membrane & obturator foramen
I: greater trochanter of femur
N: spinal nerves L5-S1
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| Inferior gemellus | O: ischial tuberosity
I: medial surface greater trochanter of femur
N: spinal nerves L5-S1
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| Quadratus femoris | O: ischial tuberosity
I: intertrochanteric crest of femur
N: spinal nerves L5-S1
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| Biceps femoris (Hamstrings) | O: long head-ischial tuberosity; short head (lateral)- linea aspera & distal femur
I: head of fibula & lateral condyle of tibia
N: sciatic nerve
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| Semitendinosus (Hamstrings) | O: ischial tuberosity
I: medial aspect of proximal tibial shaft
N: sciatic nerve
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| Semimembranosus (Hamstrings) | O: ischial tuberosity
I: medial condyle of tibia
N: sciatic nerve
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| Gastrocnemius (Triceps surae) | N: tibial nerve
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| Soleus (Triceps surae) | N: tibial nerve
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| Plantaris | N: tibial nerve
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| Popliteus | N: tibial nerve
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| Flexor digitorum longus | N: tibial nerve
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| Flexor hallucis longus | N: tibial nerve
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| Tibialis posterior | N: tibial nerve
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| Flexor retinaculum | N: tibial nerve
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