Which system is involved in coordinating body's responses through signal transmission?

The nervous system is responsible for coordinating the body's responses through the transmission of signals. It achieves this by using a complex network of neurons that communicate via electrical impulses and neurotransmitters. When a stimulus is detected, sensory neurons relay information to the brain and spinal cord, where the information is processed. The brain then sends signals through motor neurons to various muscles and glands, causing them to react accordingly.

This system is essential for rapid responses to changes in the environment, allowing organisms to adapt quickly to different situations. For example, if you touch something hot, the nervous system helps you react almost instantly by pulling your hand away before you even consciously realize it.

In contrast, the digestive system focuses on breaking down food and absorbing nutrients, the excretory system is involved in eliminating waste products, and the circulatory system transports blood, nutrients, and oxygen throughout the body. While all these systems are crucial for overall function, it is the nervous system that primarily handles coordination and responses to stimuli.