Neurons communicate with each other using axons and dendrites. Neurons transmit messages from the brain to control voluntary movement. Sensory neurons detect incoming light, sound, odor, taste, pressure, and heat and send messages to the brain. Other parts of the nervous system regulate involuntary processes, such as the release of hormones like adrenaline, dilation of the eye in response to light, or regulation of the digestive system, which are involved in the function of the body's organs and glands.
