The Central Nervous System consists of which components?

• A. Brain and spinal cord
• B. Peripheral nerves
• C. Heart and lungs
• D. Endocrine glands

Answer: (A)

The Central Nervous System is made up of the brain and spinal cord. It serves as the body’s main control center, processing sensory information, directing motor actions, and coordinating higher functions like thinking and memory. The brain and spinal cord are protected by the skull and vertebral column and by the meninges.

The other options point to different systems: peripheral nerves belong to the peripheral nervous system, heart and lungs are part of the cardiopulmonary system, and endocrine glands are part of the endocrine system.