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.
A human body is made up f number of cells. A nerve cell is defined as the cells of nervous system, which controls all types of body activities. The nerve cells are specialized cells, which transmits message from one part to another part of the body. Motor nerve cell 0 - The nerve cell that passes the instructions from our central nervous system to other parts of our body. 2  For example â to muscles or to our glands. 3  Association nerve cell-The nerve cell, which connects to our sensory and motor neurons.