RAS stands for Reticular Activiting System, is a network of neurons located in the brain stem. RAS is said to be gatekeeper of information that is let into the conscious mind. RAS keep filtering massive information collected from various sensory sources and select the one that is very important for your conscious mind to pay attention.
Like RAS, in medicoRAS we assist medical aspirants to comprehend Biology topics and pass important information so that they can score better in medical entrance tests like NEET, JIPMER and AIIMS.
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Nice article.