35. What is the main structural difference between the sp…
35. What is the main structural difference between the spinal cord & medulla oblongata? a. the spinal cord has white matter tracts while the medulla does not b. the medulla has gray matter nuclei while the spinal cord does notc. the spinal cord has a distinctive butterfly gray matter region but the medulla does not d. decussation or “crossing over” only occurs in the spinal cord and not the medullae. spinal nerves are part of the PNS but cranial nerves are part of the CNS