| 31. | These axons form the corticospinal tract.
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| 32. | The lateral corticospinal tract neurons cross the midline in the spinal cord, and controls the limbs and digits.
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| 33. | The rubrospinal tract descends with the lateral corticospinal tract, and the remaining three descend with the anterior corticospinal tract.
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| 34. | It continues down the corticospinal tracts through the capsule, midbrain, and pons where it arrives at the medullar pyramids.
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| 35. | The rubrospinal tract descends with the lateral corticospinal tract, and the remaining three descend with the anterior corticospinal tract.
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| 36. | These motor pathways, including the lateral corticospinal tract, are located in the lateral and ventral funiculi of the spinal cord.
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| 37. | Normal motor control depends on the development of connections between the axons in the corticospinal tract and the spinal cord.
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| 38. | The fibers that do not decussate will pass through the medulla and continue on to form the anterior corticospinal tracts.
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| 39. | However, where the corticospinal tract is dominant ( as in primates ), the rubrospinal tract may be considered to be vestigial.
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| 40. | The ventral corticospinal tract neurons, the remaining 10 %, stay on the same side of the body, and control the trunk muscles.
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