The nervous system is formed of nerve cells, neurons, which are surrounded by neuroglia, a tender network of connective tissue. Neurons are the distinct units of nervous tissue and are of ectodermal origin. Structure of Neuron: A neuron has a cell body or cyton from which arise two types of fibres. (i) Cyton: A cyton has a nucleus and numerous [...]
Read this article in Hindi to learn about the various parts of nervous system in humans. तन्त्रिका तंत्र के मुख्य कार्य: 1. शरीर के सभी तंत्रों का नियंत्रण जिससे उनके कार्य मिलजुल कर तथा उपयुक्त ढंग से चल सकें । 2. भिन्न संवेदनाओं का अनुभव 3. हायर फन्कसन जैसे बातचीत, सोचना, सीखना, याद करना तथा अन्य स्किलफुल कार्य । समझने [...]
In this article we will discuss about the invertebrate nervous system. This will also help you to draw the structure and diagram of invertebrate nervous system. Beginning from a primitive nerve net system, the evolution of nervous system has progressed towards aggregation of ganglia (cephalization) giving rise to a controlling and coordinating centre, the brain, towards the anterior end of [...]