AFAA Group Fitness Instructor Test questions with correct answers
Interrelation of nervous, muscular, and skeletal systems to create movement Answer Kinetic chain brain and spinal cord, coordinates activity of body parts Answer Central nervous system all nerves branching off spinal cord, extending out to the body Answer Peripheral nervous system sense distortion in body tissues Answer mechanoreceptors mechanoreceptor that senses changes in tension Answer Golgi tendon organs mechanoreceptor that senses changes in length Answer muscle spindles cumulative sensory input to the CNS from all mechanoreceptors Answer proprioception connect muscle to bone, anchor to produce force, limited blood flow, slow to repair Answer tendons individual contractile units, actin and myosin filaments Answer sarcomeres
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