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Bioen 599 F, Autumn 2000 Bioengineering Principles of Physiology |
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Lecture Material and Notes Week 9, Lecture 24: Control
by reflexes Lecture theme and outline:Reflexes modulate mechanical output of motor units using local information · A reflex can be defined as the conduction of information from a sensor to a central neural unit and thence to an effector cell. · Stretch reflex is the simplest. It has only one synapse, the one connecting the sensory nerve and the motor unit. - sensor produces nerve action potentials bases on muscle length - signal conduction from sensor to a motor nerve of MU- muscle activity determined by integration at MU. Tendon force transducer is a second important reflex · Function of reflexes is to increase the stiffness of the muscle in a feedback loop as compared to open loop control by CNS without local reflex information
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Contact the instructor at: kushmeri@u.washington.edu
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