General Anatomy of the Locomotor System
The skeleton, the supporting framework of the body, is formed by bony
and cartilaginous elements, connected by connective tissue structures.
Its parts are moved or held in defined positions or postures by the
skeletal musculature. The overarching term locomotor system includes
the skeleton and the musculature. The passive locomotor system consists
of the skeleton and its joints (articulations), while the active motor
system includes the striated muscles, the tendons, and their auxiliary
structures (muscle fasciae, bursae, tendon sheaths, and sesamoid
bones). Beside their supporting function, the skeletal elements and
their joints serve to provide levers for the muscles during locomotion.
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