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15 Muscles ~ Action, Origin & Insertion

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
Action:Bilaterally: Extends the vertebral columnUnilaterally: Laterally flexes the vertebral column to the same side   show
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Origin: Common tendon (thoracolumbar aponeurosis) that attaches to the posterior surface of sacrum, iliac crest, spinous processes of the lumbar, and last two thoracic vertebrae   show
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Insertion: Various attachments at the posterior ribs, spinous and transverse processes of thoracic and vertebrae, and mastoid process of temporal bone   show
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Action: Flexes the vertebral column   show
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Origin: Pubic crest, pubic symphysis   show
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Insertion: Cartilage of fifth, sixth and seventh ribs and xiphoid process   show
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Action: Bilaterally: Flexes the vertebral column, compresses abdominal contentsUnilaterally: Laterally flexes vertebral column to the same side, rotates vertebral column to same side   show
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show Internal oblique  
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Action:Bilaterally: Flexes the vertebral column, compresses abdominal contentsUnilaterally: laterally flexes the vertebral column to the same side, rotates the vertebral column to the opposite side   show
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Origin: Lower eight ribs   show
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show External Oblique  
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Insertion: Internal surface of lower three ribs, abdominal aponeurosis to linea alba   show
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show Quadratus lumborum  
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Origin: Posterior iliac crest   show
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show Quadratus Lumborum  
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Action:All Fibers: Extend the hip (coxal joint), laterally rotate the hip, abduct the hipLower Fibers: Adduct the hip   show
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show Gluteus maximus  
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Insertion: Gluteal tuberosity (upper fibers), and iliotibial tract (lower fibers)   show
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Action: Flexes the hip (coxal joint), laterally rotates the hip (coxal joint), adducts the hip (coxal joint)   show
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show Psoas major and Iliacus (Iliopsoas)  
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show Psoas major and Iliacus (Iliopsoas)  
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show Piroformis  
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Origin: Anterior surface of the sacrum   show
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Insertion: Greater trochanter   show
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Action:All fibers: Abduct the hip (coxal joint)Anterior fibers: Flex the hip, Medially rotate the hipPosterior fibers: Extend the hip, Laterally rotate the hip   show
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Origin: Gluteal surface of the ilium between iliac crest and posterior and anterior gluteal lines   show
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Insertion: Greater trochanter   show
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Action: Flex the hip, medially rotate the hip, abduct the hip   show
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show Tensor fasciae latae (TFL)  
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show Tensor fasciae latae (TFL)  
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Action: Invert the foot, Plantarflex the ankle   show
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Origin: Proximal posterior shaft of tibia, proximal fibula, interosseous membrane   show
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Insertion: Navicular, cuneiforms, cuboid, bases of second through fourth metatarsals   show
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Action: Evert the foot, assists to plantarflex the ankle (talocrural joint)   show
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show Peroneus longus  
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show Peroneus longus  
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show Extensor digitorum longus  
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Origin: Lateral condyle of tibia, proximal anterior shaft of fibula, interosseous membrane   show
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show Extensor digitorum longus  
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show Extensor digitorum  
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show Extensor digitorum  
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Insertion: Middle and distal phalanges of 2nd thru 5th fingers   show
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Action: Flex the wrist, abduct the wrist, flex the elbow   show
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Origin: Common flexor tendon from medial epicondyle   show
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Insertion: Base of second and third metacarpals   show
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