Which body system is a well-organized network comprising the brain, spinal cord, and nerves that controls and coordinates all other body systems?

Which body system is a well-organized network comprising the brain, spinal cord, and nerves that controls and coordinates all other body systems?

• A. Dermatology
• B. Endocrine system
• C. Stratum corneum
• D. Nervous system

Answer: (D)

The nervous system is the body's command and control network, made up of the brain, spinal cord, and a vast web of nerves that carry signals throughout the body. Neurons transmit electrical impulses that the brain processes into decisions, which are then sent via the spinal cord and peripheral nerves to muscles and organs. This fast, coordinated signaling system integrates sensory information, initiates responses, and keeps all other body systems working together. The endocrine system also regulates body processes, but it uses hormones and operates more slowly, not the direct neural network described here. Dermatology is a medical specialty focused on skin, and the stratum corneum is simply the outermost layer of the skin, not a body system.

The nervous system is the body's command and control network, made up of the brain, spinal cord, and a vast web of nerves that carry signals throughout the body. Neurons transmit electrical impulses that the brain processes into decisions, which are then sent via the spinal cord and peripheral nerves to muscles and organs. This fast, coordinated signaling system integrates sensory information, initiates responses, and keeps all other body systems working together. The endocrine system also regulates body processes, but it uses hormones and operates more slowly, not the direct neural network described here. Dermatology is a medical specialty focused on skin, and the stratum corneum is simply the outermost layer of the skin, not a body system.