Brian Lee
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| Plane | Divides Body Into | Movements (Examples) |
|---|---|---|
| Sagittal | Left / Right | Flexion & Extension (nodding, elbow bend) |
| Frontal (Coronal) | Front / Back | Abduction & Adduction (lifting arm to side) |
| Transverse (Horizontal) | Top / Bottom | Rotation (twisting at the waist) |
| Oblique | Diagonal slices | Combined movements (reaching across the body) |