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The supplementary motor area (SMA) is a part of the motor cortex of primates that contributes to the control of movement. It is located on the midline surface of the hemisphere just in front of (anterior to) the primary motor cortex leg representation. In monkeys, the SMA contains a rough map of the body.
Located anterior to the primary motor cortex. 3. The supplementary motor area (or SMA), has many proposed functions including the internally generated planning of movement, the planning of sequences of movement, and the coordination of the two sides of the body such as in bi-manual coordination. Located on the midline surface of the hemisphere ...
Brodmann area 6 (BA6) is part of the frontal cortex in the human brain. Situated just anterior to the primary motor cortex , it is composed of the premotor cortex and, medially, the supplementary motor area (SMA). This large area of the frontal cortex is believed to play a role in planning complex, coordinated movements.
The premotor cortex occupies the part of Brodmann area 6 that lies on the lateral surface of the cerebral hemisphere. The medial extension of area 6, onto the midline surface of the hemisphere, is the site of the supplementary motor area, or SMA.
Topography of the primary motor cortex, showing which zone controls each body part. Many of the brain areas defined by Brodmann have their own complex internal structures. In a number of cases, brain areas are organized into topographic maps, where adjoining bits of the cortex correspond to adjoining parts of the body, or of some more abstract ...
The primary motor cortex, the pre-motor cortex, the supplementary motor area, parietal cortex, [11] and the basal ganglia all may experience these preparatory delay periods. These activities coordinate during the delay periods and reflect movement planning in accordance with the instructional cue and the subsequent movement but occur prior to ...
Robinson Jr. carries extra risk now should he lose another early fumble in Week 17, but he should remain Washington’s workhorse otherwise. The Commanders are four-point favorites with a healthy ...
Cortex Primary motor cortex (Precentral gyrus, M1) Premotor cortex; Supplementary motor cortex; Prefrontal cortex. Orbitofrontal cortex; Dorsolateral prefrontal cortex; Ventrolateral prefrontal cortex; Dorsomedial prefrontal cortex; Ventromedial prefrontal cortex; Gyri. Superior frontal gyrus; Middle frontal gyrus; Inferior frontal gyrus