Your nervous system plays an important part in your body functioning smoothly. It is a very complicated system and no one understands all the functions yet. Your nervous system is a complex network of cells. There are two parts of the nervous system, which are the peripheral nervous system and the central nervous system. In the central nervous system you will find your brain and spinal cord. The peripheral nervous system consists of the neural tissues that are lying to the exterior of your central nervous system.
The Functions of the Nervous System
The nervous systems main function is to keep control over the systems of your body. The various functions include:
In your nervous system are sensory receptors which are useful for the extraction of information from the environment. Then they send this information to the central nervous system. The carriers of this information are called sensory neurons.
After your central nervous system gets the information it carries out the processing. The interneurons are what has the task of transferring and interpreting this information.
The information that is processed in the central nervous system is sent to the muscles and glands of your body by the peripheral nervous system. The function sending instructions to your glands and muscles is carried out by the motor neurons.
The autonomous system carries out the involuntary burlesque costume processes of your body like digestion, regulating your body temperature, breathing, etc.
There are two parts to your autonomous system which are the parasympathetic and sympathetic nervous systems. The hind brain carries out the homeostasis and coordination of your body movements. In the hind part of you brain you will find the cerebellum, pons, and medulla.
There are three classifications of receptors which are the proprioceptors, interoceptors and exteroceptors.
The exteroceptors are used for smelling, looking, touching, listening, feeling, tasting. The interoceptors receive the signals that are associated with alimentary canal, blood pressure, osmotic pressure of blood plasma, and bladder.
The proprioceptors track the position and movement of body parts.
The kind of stimulus that is received by the receptors is classified into three categories, which are the thermoreceptors, chemical receptors, and mechanoreceptors.
The thermoreceptors consist of cold and warm fibers, which are excited by the rising and falling temperatures.
Information about the mechanical stimulation to your central nervous system is carried by the mechanoreceptors. There are three categories of chemical receptors which include the glucose, gustatory, and olfactory detectors. The glucose detectors are responsible for detecting glucose. The gustatory detectors are responsible for detecting taste and the olfactory detectors are responsible for detecting smell.
Interesting Facts About the Nervous System
There are more nerve cells in your body than Milky Way stars.
There are approximately one hundred billion neurons in your brain olive oil for hair growth and if lined up it would reach a six hundred mile long line.
When a baby is born their brain already has ten million nerve cells.
The brain in an adult male weighs one thousand three hundred seventy five grams and the adult female brain weighs one thousand two hundred seventy-five grams. As you grow older your brain each year your brain will loose one gram. At any point in time your brain only uses four percent of their cells while the rest of the cells are put on reserve.