After reading this article you will learn about the functions of Reticular Activating System (RAS). The Reticular Activating System (RAS) of the brain stem is considered as one of the most important systems which facilitates the functioning of sensation and attention. This is made up of a net-like bundle of neurons that run through the hind-brain, mid-brain and a part [...]
After reading this article you will learn about the nature of nerve impulse. It is now known that nerve impulse is electro-chemical. Whenever some stimulus impinges on a receptor, this introduces certain charges which are electro-chemical. These charges are conducted by the nerves to the nerve centre and again the motor nerves relay back another nerve impulse which results in [...]
After reading this article you will learn about the working of simple reflex with the help of a diagram. Reflex actions are not learnt but are present from birth. They are essentially concerned with the preservation or protection of the organisms. Most reflexes are controlled by the spinal cord; some of course by the other centres. The following example explains [...]