Which of the following best describes the major set of large nerves running down the spinal column or vertebrae?

• A. Autonomic ganglia
• B. Peripheral nerves
• C. Spinal cord
• D. Cranial nerves

Answer: (C)

Verified step by step guidance

1. Step 1: Begin by understanding the anatomy of the nervous system. The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS includes the brain and spinal cord, while the PNS includes peripheral nerves and autonomic ganglia.
2. Step 2: Focus on the spinal cord. The spinal cord is a major structure within the CNS that runs down the vertebral column. It is protected by the vertebrae and serves as a communication highway between the brain and the rest of the body.
3. Step 3: Differentiate between the options provided. Autonomic ganglia are clusters of nerve cells in the PNS that regulate involuntary functions. Peripheral nerves are part of the PNS and extend from the spinal cord to the rest of the body. Cranial nerves are nerves that emerge directly from the brain, not the spinal column.
4. Step 4: Recognize that the spinal cord is the correct answer because it is the major set of large nerves running down the spinal column, protected by the vertebrae, and is part of the CNS.
5. Step 5: Conclude that the spinal cord is the structure described in the question, as it matches the anatomical location and function specified.