The Nervous System

Friends,
Today I'm going to talk a little about the nervous system. I have been taking First Responder classes so I've learn't some things! So I sure hope it's a subject you like!

The nervous system controls the voluntary and involuntary activities of the body. It also provides for higher mentl function shuch as thought, emotion, and memory. The two main components of the nervous system are the central nervous system (CNS) and the peripheral nervous system (PNS).
The CNS comprises the brain and spinal cord. The brain is the control center of the body and because it controls everything from muscle movements to emotional response. The brain is thinking and problem solving as you read this and it also controls your fingers to move the mouse to scroll this page. It controls basic life functions like breathing and maintaining body temperature.
The spinal cord extends downward from the brain through the center of the spinal column. The spinal cord is like a high-speed information highway that carries messages between the brain and the rest of the body. Proper functioning of the CNS is vital for the well-being and survival of the whole body.
The PNS is the system of nerves that carry messages between the body and the CNS. Two types of nerves make up the PNS: motor nerves, which carry information from the brain to the muscles of the body, and sensory nerves, which carry information from the body back to the brain. For example, when you decide to take persons pulse, your prain sends a "take the radial pulse" message down your spinal cord and motor nreves to your fingers to feel for the persons pulse waves. Your sensory nerves then collect the information about the pulse and deliver that information to your spinal cord and finally back to your brain. Your brain recieves the message and calculates the number of beats per minute.

Well folks that's all I have for now. To find out more you have to keep checking my blog nonstop till I post more later for you! Hope I didn't lose you too far back! Haha!

~Megan