Recognizing the Works of Nerves
How do nerves work ? The nerve systems and their works have been studied by doctors and human physics since several centuries. They found and they have established knowledge of nerves throughout the body. Different nerves with the other limbs. This is due to differences in the shape and function. Just like other parts of the body that also has the characteristic.
It is important to study and to understand the characteristics of the nerve cells.
In the nervous system is neural cells and their networks. This nerve cells is the smallest part of the human neural system having the characteristics differ from the cells of other body organs.
The division of the Nervous System
The nervous system is composed of two parts namely the central nervous system (CNS) and peripheral nervous system.
a. The central nervous system (CNS)
The central nervous system is divided into two parts namely the brain and spinal cord which are surrounded by bone cranium and vertebral canal as its patron.
b. Peripheral nervous system
The peripheral nervous system consists of all the nerve tissue in the entire body. Peripheral nervous system is composed of two parts namely the cranial nerves and spinal nerves. Its function is for connecting between the brain and spinal cord to the effectors and receptors.
Characteristics Nerves
Nerve cells have the scientific name of 'neurons'. As already mentioned above, that the cell is not the same as other body cells. Neural is composed of these neurons and have characteristics or traits that have overhung in cytoplasm. In addition formed by neurons, the nerve cells are also formed by the existing named neuroglia in the central nervous system.
Nerve cells in humans is in the whole body. In neurons or nerve cells there is not such thing as the cytoplasm. In the cytoplasm there are several constituent elements of the ribosome, mitokandria, endoplasmic reticulum, and the Golgi apparatus.
Neurons obtain food intake to charge envelope neuroglia cells. If the cytoplasm contains Golgi bodies forming riboson and some other elements, then the neuron consists of dendrites, axons and cell bodies.
Dendrite is a combination of several cytoplasmic fibers that have the work of delivering stimulation to the cell body. Axon itself is a form of single fibers cytoplasm. The task of these axons are taking stimulus leaves the cell body. Shape at the end of the axon that could form branches called axon terminals.
Between axon terminals and other axon terminal is the neuron with other neurons called synapses. This synaptic relay forwarding task to bring the stimulus to other nerve
cells.
