Chapter 32 Control of Motor Function -by Nerous System-
Chapter 32 Control of Motor Function by Nervous System
Contents o Motor Unit and Final common Pathway ● Spinal reflexes o Function of Brain stem o Function of the Basal ganglion ● Function of cerebellun o Function of the cortex
Contents ⚫ Motor Unit and Final Common Pathway ⚫ Spinal Reflexes ⚫ Function of Brain Stem ⚫ Function of the Basal Ganglion ⚫ Function of Cerebellum ⚫ Function of the Cortex
organization of motor subsystems DESCENDING SYSTEMS upper Motor Neurons Motor Cortex BASAL GANGLIA Planning, initiating, and Gating proper initiation directing voluntary movements of movement Brainstem Centers CEREBELLUM Basic movements and Sensory motor postural control coordination Local circuit neurons Re Motor neuron pools flex coordination Lower Motor Neurons SPINAL CORD AND BRAINSTEM CIRCUITS SKELETAL MUSCLES o 2001 Sinauer Associates, Inc
organization of motor subsystems
Section 1. Motor Unit and Final Common Pathway
Section 1. Motor Unit and Final Common Pathway
Ventra root Ventral Lower he orn Mixed motor spinal Muscle neurons nerve fib er