What does the nervous system transmit?

The nervous system is primarily responsible for transmitting electrical signals, which are essential for communication between different parts of the body. These electrical signals, known as action potentials, occur when neurons (nerve cells) send messages to each other and to muscles and glands. This communication allows the body to respond to stimuli, coordinate movement, and maintain homeostasis.

In contrast, hormones are transmitted by the endocrine system through the bloodstream, nutrients are transported via the circulatory system, and waste products are eliminated through various systems in the body. Thus, the focus of the nervous system is specifically on the rapid transmission of electrical signals, enabling quick responses and reflex actions.