23. Corticospinal tract

  1. The corticospinal tract is a motor pathway starting at the cortex that terminates on motor neurons in the brainstem or spinal cord and is involved in the control of motor functions of the body?
  2. About 80% of corticospinal neurons originate in the primary motor cortex?
  3. Pyramidal cells of Betz are the largest neurons in the central nervous system?
  4. Lateral corticospinal tract appears on transverse section of the spinal cord as an oval area in front of the posterior column and medial to the posterior spinocerebellar tract?
  5. All the fibers of the lateral corticospinal tract cross the midline in the medulla oblongata and control the limbs and digits?
  6. The anterior corticospinal tract becomes smaller as it descends, ending at the level of the mid-thoracic spinal cord?

  1. F
  2. F
  3. T
  4. T
  5. F
  6. T