What is the anatomy of the central nervous system?

With the exception of some primitive creatures such as sea jelly and fungus, animals have a certain form of central nervous system. The anatomy of the central nervous system changes between different organisms, but always contains a brain that is made up of billions of neurons. More advanced animals, including humans, also have a spinal cord that helps regulate the function of the body.

The brain is the most important organ in the anatomy of the central nervous system. The brain stem, which forms a whole brain in many animals, regulates the functions needed to maintain the body alive, such as metabolism, breathing and heart rhythm. Among the more advanced evolutionary features are the cerebellum, which is found in reptiles and animals that have evolved. It is involved in motion, coordination and memory. The cerebrum, common to all mammals, is the center of more complex processes, such as those that control voluntary muscles and cognitive. This part of the brain jerozed on a series of lobes such as frontal and parietal lobe that are often closely associated with smallfor a set of duties.

The anatomy of the central nervous system in some animals also includes a spinal cord. The presence or absence of this organ was historically a method for classification of animals, although better understanding of evolutionary relationships made it one of the few functions that help place animals in groups called Phyla. In animals with lateral symmetry such as humans, fish and reptiles, spinal cord runs along the length of the animal along the back of the animal. Although the spinal cord is composed of a network of neurons, such as the brain, it acts as a relay station between the peripheral and central nervous system and has a direct control of only a few key systems.

neurons are building kamenyanatomy of the central nervous system. Unlike other animal cells, these cells are both in the structure and in use. Like other cells, they have organelles and deoxyribonucleic acid inside them, but unlike other cellsThey lack the ability to repair if they become damage. Neuron has two ends, a cellular body that has many dendrites that branch from it to receive information from other cells, and the end of the terminal with axons that transfer information to other neurons. The information sent by the neuron is in the form of a chemical and electrical signal.