AP PSYCHOLOGY

Detailed explanation-1: -This portion of the central nervous system runs down the inside of the spinal column, connecting the brain with nerves going to the rest of the body.

Detailed explanation-2: -The central nervous system, which includes the spinal cord and the brain, is the most protected organ in the human body.

Detailed explanation-3: -The nervous system is made up of the central nervous system and the peripheral nervous system: The central nervous system includes the brain and spinal cord.

Detailed explanation-4: -The endocrine system works together with the nervous system to influence many aspects of human behaviour, including growth, reproduction, and metabolism. And the endocrine system plays a vital role in emotions.