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13 Cards in this Set

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  • Back
Primary Motor Cortex
Located in the frontal lobe, contains motor neurons that send axons to specific skeletal muscles
Premotor Area
Controls the organization of movements before they are initiated and rhythmic coordination between movements
Supplementary Motor Area
control of sequential movements, preparation and organization of movements
Parietal Love
voluntary movement, integration of movement preparation and execution processes by interacting with the premotor, primary, and supplementary motor cortexes
Basal Ganglia
Nuclei buried within cerebral hemispheres, planning and initiation of movement and control of antagonist muscles
parkinson's Disease
Basal ganglia disorder, don't produce enough of NT dopamine, bradykinesia, tremors, muscle rigidity
Diencephalon
thalamus=relay station, attention, mood, perception of pain. Hypothalamus=control of endocrine, homeostasis, response to stress
Cerebellum
execution of smooth and accurate movements
Brainstem
pons=chewing, swallowing, balance. medulla=respiration, heartbeat, crossing site. Reticular formation=chain of nuclei, lie between sensory receptors and motor control centers, integrator of sensory and neural impulses
Limbic System
Learning of motor skills
Ascending Tracts
transmission of sensory info, important to control of voluntary movement, proprioception, touch, pressure, pain, temperature
Motor Unit
Neuron and all the muscle fibers it innervates, fine movements have small motor units
Motor Unit Recruitment
Increasing the number of motor units in order to increase the number of muscle fibers active at any one time, thereby increasing the force the muscle can exert