TY - CHAP M1 - Book, Section TI - The Motor Unit and Muscle Action PY - 2014 T2 - Principles of Neural Science, Fifth Edition AB - The Motor Unit Is the Elementary Unit of Motor ControlA Motor Unit Consists of a Motor Neuron and Multiple Muscle FibersThe Properties of Motor Units VaryPhysical Activity Can Alter Motor Unit PropertiesMuscle Force Is Controlled by the Recruitment and Discharge Rate of Motor UnitsThe Input–Output Properties of Motor Neurons Are Modified by Input from the Brain StemMuscle Force Depends on the Structure of MuscleThe Sarcomere Contains the Contractile ProteinsNoncontractile Elements Provide Essential Structural SupportContractile Force Depends on Muscle Fiber Activation, Length, and VelocityMuscle Torque Depends on Musculoskeletal GeometryDifferent Movements Require Different Activation StrategiesContraction Velocity Can Vary in Magnitude and DirectionMovements Involve the Coordination of Many MusclesMuscle Work Depends on the Pattern of ActivationAn Overall View SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accessbiomedicalscience.mhmedical.com/content.aspx?aid=1101680943 ER -