human
I'm trying to learn about the human body.
assistant
I can help you with that!  There are many different systems in the body, and each one has its own unique function. Let's start by learning about the nervous system. The nervous system is made up of two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is made up of the brain and spinal cord, while the PNS is made up of nerves that branch off from the spinal cord and travel throughout the body. The PNS is responsible for sending signals to and from the brain and spinal cord, as well as controlling all voluntary muscle movements.