What term describes the body's speedy, electrochemical communication system consisting of all nerve cells of the peripheral and central nervous systems?

What term describes the body's speedy, electrochemical communication system consisting of all nerve cells of the peripheral and central nervous systems?

• A. Nervous System
• B. Brain
• C. Neuron
• D. Sensory System

Answer: (A)

The central idea being tested is that the body’s fast, electrochemical communication network is the nervous system, which includes all nerve cells in the brain and spinal cord (the central nervous system) plus the nerves throughout the body (the peripheral nervous system). It communicates by electrical impulses in neurons that release neurotransmitters to pass signals across synapses, enabling quick, coordinated responses to stimuli. The brain alone is only part of this system, so naming it by itself misses the broader network. A neuron is the cell that carries these signals, not the entire system. The sensory system refers to the pathways that detect and transmit sensory information, a functional subset rather than the whole rapid communication network. So the nervous system best captures the full, rapid signaling system described.

The central idea being tested is that the body’s fast, electrochemical communication network is the nervous system, which includes all nerve cells in the brain and spinal cord (the central nervous system) plus the nerves throughout the body (the peripheral nervous system). It communicates by electrical impulses in neurons that release neurotransmitters to pass signals across synapses, enabling quick, coordinated responses to stimuli. The brain alone is only part of this system, so naming it by itself misses the broader network. A neuron is the cell that carries these signals, not the entire system. The sensory system refers to the pathways that detect and transmit sensory information, a functional subset rather than the whole rapid communication network. So the nervous system best captures the full, rapid signaling system described.