35.0 MB (35.0 MB compressed)
2625 x 4665 pixels
22.4 x 39.6 cm ⏐ 8.8 x 15.6 in (300dpi)
BO VEISLAND / SCIENCE PHOTO LIBRARY BO VEISLAND / SCIENCE PHOTO LIBRARY
Brain motor cortex pathways. Artwork of a sectioned human brain, brainstem and spinal cord, showing neural pathways (red and blue) from the motor cortex of the brain. These are extrapyramidal pathways: the rubrospinal and reticulospinal tracts. Extrapyramidal pathways control involuntary movements and help co-ordinate movements (muscle at lower left). For an image showing the brain and where these sections were obtained, see C016/6531. The top image is a vertical (coronal) section through the brain at the rear of the frontal lobe. From top to bottom, the horizontal sections are at the level of the: mid brain, pons, medulla, and spinal cord.
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