While the four system approach to negligence is helpful in identifying whether or not an injury warrants legal action, it does fail to distinguish between two distinctly important concepts in the cause/effect relationship of negligence: factual causation vs. proximate cause. Factual and Proximate Cause
Types of Neurons (Nerve Cells). The human body is made up of trillions of cells. Cells of the nervous system, called nerve cells or neurons, are specialized to carry messages through an electrochemical process. The human brain has approximately 100 billion neurons.To learn how neurons carry messages, read about the action potential.owever, neurons differ from other cells in the body because: 1  Neurons have specialize cell parts called dendrites and axons. 2  Neurons communicate with each other through an electrochemical process. 3  Neurons contain some specialized structures (for example, synapses) and chemicals (for example, neurotransmitters).
Neurons are the specialized cells in the central nervous system. Neurons are classified according to structure, shape and function. Each type of neuron has a specific role for the proper functioning of the brain and the spinal cord.ensory neurons are the neurons that harness information from the different sensory organs such as the eyes, nose, ears, tongue and skin. On the other hand, motor neurons transmit signals from the brain to the spinal cord to the muscles to initiate action or response to stimuli.