...THE NERVOUS SYSTEM The nervous system allows the animal to quickly detect, communicate and co-ordinate information about its external and internal environment so it can make efficient appropriate responses for survival and/or reproduction. The two major parts of our nervous system are the central nervous system (CNS) and peripheral nervous system (PNS). The CNS is made of the brain and spinal cord. The cranial nerves, spinal nerves and ganglia make up the PNS. The cranial nerves connect to the brain. The cranial and spinal nerves contain the axons (fibres) of sensory and motor nerve cells. Nerve cells areas are also known as neurons. Neurons are the basic unit of the nervous system. They carry information or impulses as electrical signals from one place to another in the body. There are 3 types of neurons: Sensory Neurons- Sensory neurons carry electrical signals (impulses) from receptors or sense organs to the CNS. Sensory neurons are also called afferent neurons. The cell body of sensory neurons is outside the CNS in ganglia. Motor Neurons- Motor Neurons Carry Impulses From The CNS To Effector Organs Motor Neurons Are Also Called Efferent Neurons. The Cell Bodies Of Motor Neurons Are Inside The CNS. Interneurons- These are also called intermediate, relay, or associative neurons. They carry information between sensory and motor neurons. They are found in the CNS. TOP The Structure of Neurons A Neuron consists of THREE MAIN PARTS: A. CELL...
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...Also by J.K. Rowling Harry Potter and the Philosopher’s Stone Harry Potter and the Chamber of Secrets Harry Potter and the Prisoner of Azkaban Harry Potter and the Goblet of Fire Harry Potter and the Order of the Phoenix Harry Potter and the Half-Blood Prince Harry Potter and the Deathly Hallows (in Latin) Harry Potter and the Philosopher’s Stone Harry Potter and the Chamber of Secrets (in Welsh, Ancient Greek and Irish) Harry Potter and the Philosopher’s Stone Fantastic Beasts and Where to Find Them Quidditch Through the Ages The Tales of Beedle the Bard Copyright First published in Great Britain in 2012 by Little, Brown and Hachette Digital Copyright © J.K. Rowling 2012 The moral right of the author has been asserted. All characters and events in this publication, other than those clearly in the public domain, are fictitious and any resemblance to real persons, living or dead, is purely coincidental. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, without the prior permission in writing of the publisher, nor be otherwise circulated in any form of binding or cover than that in which it is published and without a similar condition including this condition being imposed on the subsequent purchaser. ‘Umbrella’: Written by Terius Nash, Christopher ‘Tricky’ Stewart, Shawn Carter and Thaddis Harrell © 2007 by 2082 Music Publishing (ASCAP)/Songs of Peer, Ltd. (ASCAP)/March Ninth Music...
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...Also by J.K. Rowling Harry Potter and the Philosopher’s Stone Harry Potter and the Chamber of Secrets Harry Potter and the Prisoner of Azkaban Harry Potter and the Goblet of Fire Harry Potter and the Order of the Phoenix Harry Potter and the Half-Blood Prince Harry Potter and the Deathly Hallows (in Latin) Harry Potter and the Philosopher’s Stone Harry Potter and the Chamber of Secrets (in Welsh, Ancient Greek and Irish) Harry Potter and the Philosopher’s Stone Fantastic Beasts and Where to Find Them Quidditch Through the Ages The Tales of Beedle the Bard Copyright First published in Great Britain in 2012 by Little, Brown and Hachette Digital Copyright © J.K. Rowling 2012 The moral right of the author has been asserted. All characters and events in this publication, other than those clearly in the public domain, are fictitious and any resemblance to real persons, living or dead, is purely coincidental. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, without the prior permission in writing of the publisher, nor be otherwise circulated in any form of binding or cover than that in which it is published and without a similar condition including this condition being imposed on the subsequent purchaser. ‘Umbrella’: Written by Terius Nash, Christopher ‘Tricky’ Stewart, Shawn Carter and Thaddis Harrell © 2007 by 2082 Music Publishing (ASCAP)/Songs of Peer, Ltd. (ASCAP)/March Ninth...
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...PROLOGUE Fortress of the Light Pedron Niall's aged gaze wandered about his private audience chamber, but dark eyes hazed with thought saw nothing. Tattered wall hangings, once battle banners of the enemies of his youth, faded into dark wood paneling laid over stone walls, thick even here in the heart of the Fortress of the Light. The single chair in the room heavy, high-backed, and almost a throne - was as invisible to him as the few scattered tables that completed the furnishings. Even the white-cloaked man kneeling with barely restrained eagerness on the great sunburst set in the wide planks of the floor had vanished from Niall's mind for the moment, though few would have dismissed him so lightly. Jaret Byar had been given time to wash before being brought to Niall, but both his helmet and his breastplate were dulled from travel and battered from use. Dark, deep-set eyes shone with a feverish, urgent light in a face that seemed to have had every spare scrap of flesh boiled away. He wore no sword - none was allowed in Niall's presence - but he seemed poised on the edge of violence, like a hound awaiting the loosing of the leash. Twin fires on long hearths at either end of the room held off the late winter cold. It was a plain, soldier's room, really, everything well made but nothing extravagant except for the sunburst. Furnishings came to the audience chamber of the Lord Captain Commander of the Children of the Light with the man who rose to the office; the...
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