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Which of the following most accurately describes the primary role of satellite cells?
To act as an intermediary in the cell-signalling pathway for bone remodeling
To regenerate skeletal muscle after muscle injury
To regenerate periosteum after periosteal damage in a child
To bind chemotherapeutic ligands in the treatment of lymphoma of bone
To express high amounts of sonic hedgehog surface protein
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Concomitant flexion of the hip and extension of the knee is most likely to result in an injury to which structure?
Tensor fascia lata
A 15-year-old boy sustains the injury seen in Figure A while running the hurdles. The same mechanism in an adult athlete would most likely result in which of the following injuries?
Hamstring myotendinous junction rupture
Pelvic ramus fracture
Hamstring muscle belly rupture
Hamstring tendinous insertion rupture