Term
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Definition
| Located just anterior to M1 and inferior to SMA, it controls postural/trunk and large limb muscles, the planning of actions based on sensory cues, and refinement of movements based on sensory input with cerebellum. |
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Term
| Primary Motor Cortex (M1) |
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Definition
| Located just anterior to the central sulcus, in the frontal lobe, controls the execution of movement |
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Term
| Supplementary Motor Area (SMA) |
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Definition
| Located just anterior to M1 and superior to PMA, it is involved in planning learned sequences of movements, activity just prior to movement, and has strong connections with subcortical structures. |
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Term
| Posterior Parietal Cortex (PPC) |
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Definition
| Located posterior to sensorimotor cortex, it integrates sensory and motor portions of the brain, processes position of the body and objects in space, and controls eye movements. |
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Term
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Definition
| The fibers that connect cortex through the spinal cord to motor neurons throughout the body |
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Term
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Definition
| Originate in motor region of the cerebral cortex and carry motor information down to a specific spinal cord level |
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Term
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Definition
| Bring the nerve impulses from the upper motor neurons out to the muscle |
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Term
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Definition
| Weakness on one side of the body |
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Term
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Definition
| A disorder where the patient is unaware of and denies their disability, often associated with paralysis and right dorsal parietal damage |
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Term
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Definition
| A syndrome where patients are unaware of the world on one side of space, usually from damage to right posterior parietal cortex |
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Term
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Definition
| A syndrome where patients have finger agnosia, problems with left/right differentiation, and problems with calculation and writing |
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Term
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Definition
| A disorder of motor planning involving the loss of the ability to carry out learned purposeful movements, despite having the desire and the physical ability to perform the movements |
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Term
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Definition
| A group of cell bodies below cortex interconnected with the cortex, thalamus and brainstem that is involved in motor control, cognition, emotions and learning |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| A disease characterized by slowly or loss of movement, muscle rigidity, and tremor at rest due to a loss of dopamine neurons in the basal ganglia |
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Term
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Definition
| A genetic neurological disorder due to a loss of cortical neurons (Especially in the inhibitory pathway of basal ganglia) causing a decline in mental abilities and uncoordinated, jerky body movements |
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Term
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Definition
| A disorder characterized by involuntary flinging motions of the extremities that increase with activity, due to loss of the inhibitory pathway of the motor loop. |
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