Which of the following structures is part of the central nervous system?
- A) Spinal Nerves
- B) Cranial Nerves
- C) Brain
- D) Peripheral Nerves
The correct answers are B) Cranial Nerves and C) Brain.
The central nervous system (CNS) consists of:
– The brain
– The spinal cord
– Cranial nerves (which emerge directly from the brain)
The brain and spinal cord are the primary structures of the CNS, and cranial nerves are part of the CNS because they arise from the brain.
The other options are not correct because:
– A) Spinal nerves are part of the peripheral nervous system (PNS), which includes nerves that connect the CNS to the rest of the body.
– D) Peripheral nerves are also part of the PNS, connecting the CNS to muscles, sensory receptors, and other tissues.
Note: The CNS processes and integrates information, while the PNS transmits information between the CNS and the rest of the body.