The nervous system is essential for communicating sensory information and coordinating responses in the body. Neurons are the primary functional units of the nervous system. They can be classified based on their function: sensory neurons transmit sensory information to the central nervous system (CNS), motor neurons convey commands from the CNS to muscles, and interneurons connect neurons within the CNS. Understanding this classification is crucial for comprehending how the nervous system facilitates interaction with the environment.
Consider the roles of the different types of neurons. If a person touches a hot stove and quickly retracts their hand, which type of neuron is responsible for sending the initial signal to the brain about that sensation?