Answer the following question given this paragraph: Vertebrates have a centralized nervous system. As shown in Figure below , the nervous system consists of a brain in the head region. It also includes a long spinal cord that runs from the brain to the tail end of the backbone. Long nerve fibers extend from the spinal cord to muscles and organs throughout the body. Q: In vertebrates, what structure runs from the brain to the tail end of the backbone? Choices: - ribcage - aortic valve - backbone - spinal cord A:
A:
spinal cord