Summary # 11 (The nervous system)

Your brain is the controlo center of the nervous system, wich is made of nerve cells. Nerve cells receive signals or carry messages and carry them from one part of your body to another.
 Impulse flash along individuals nerve cells, or neurons. Each neuron has three  main parts- a cell body, dentrites, and an axon. There is a gap between nerves and it is called synapse. There are three  kinds of neurons: sensory neurons that control the information from stimuli, motor neurons carry commands form the brain  and spinal cord to the muscles and glands, and associative neurons pass impulses from sensory to motor  neurons. The brain and the spinal cord are the central nervous system. All other nerves are are the outer, or peripheral, nervous system.  The brain is divided in two hemispheres and is protected by the skull. The spinal cord is protected by the vertebral column.
 The brain also controls the senses.