Brain

                              Information

The brains is the center of the nervous system in all Vertebrate and most invertebrate the animals only a few Invertebrates the such as sponges in the jellyfish adult sea squirts and starfish do not have one even if diffuse the neural tissue is present. It is Located in the head. the usually close to the primary the sensory organs for such senses as the vision hearing balances taste and smell. The brain of  vertebrate is the Most complex organ of it body. In a typical human of the cerebral cortex .the largest part. Is estimated to the contain 15.33 billion neurons.1. Each connected by the synapses to several thousand other Neurons.

http://wallpaperdevelment.blogspot.com

http://wallpaperdevelment.blogspot.com

 These was neurons in communicate with one another by the means of long protoplasmic fibers called axons which carry trains of the signal pulses called action potentials to distant parts of the brain or body targeting specific in recipient cells.

Physio logi cally the function of the brain is to exert centralized control over the Other organ of the body. The brain acts on the rest in the body both by generating the patterns of Muscle activity and by the driving secretion of the chemicals called Hormones.