Nervous System: The nervous system receives information about external & internal changes, communicates the information to different parts of the body & coordinates the activities of the different organs & organ systems. The nervous system includes the following parts- brain, spinal cord, nerves & the five sense organs namely eyes, ears, nose, tongue & skin. Brain (Encephalon): It is present in the head region, inside the skull bone i.e. Cranium. It is about 1200-1400 gms & constitutes 98 % weight of the central nervous system. The brain is divided into three parts – forebrain, midbrain & hindbrain. The forebrain contains … Continue reading Nervous System