Sometimes you may have atrial flutter that develops into atrial fibrillation and vice versa. The risk factors for and the symptoms and causes of atrial flutter are similar to those of atrial fibrillation. For example, strokes are also a concern in someone with atrial flutter. As with atrial fibrillation, atrial flutter is usually not life-threatening when it's properly treated.
Nerves and Nerve Types. There three types of nerves in the central nervous system: motor neurons, sensory neurons and autonomic neurons. Motor nerves send impulses or signals from the brain and spinal cord to all of the muscles in the body.
Introduction to nerve cell structure and function : A Nerve cell with all its processes is called a neurone.It is the structural and functional unit of the nervous system.A neurone has cell body called soma and two types of processes called axons and dendrites. Nerve cell with all its processes is called a neurone.It is the structural and functional unit of the nervous system.A neurone has cell body called soma and two types of processes called axons and dendrites.