Neuron - p. 480 + 563

          Dendrite - p. 480 + 563

          Cell body - p. 480 + 563

          Axon - p. 480 + 563

Synapse - p. 480 + 565

Myelin sheath - p. 563

          White matter - p. 563 + 570

Grey matter - p. 570

Action Potential - p. 564

*Central Nervous System - CNS - p. 562 + 571

         Cerebrospinal fluid

         Simple spinal reflex - p. 571

                   Sensory neuron - p. 480 + 562 + 571

                   Interneuron - p. 480 + 562 + 571

                   Motor neuron - p. 480 + 562 + 571

Cerebrum - p. 567

          Corpus callosum - p. 567

          Cerebral cortex - p. 567

                    Occipital lobe - p. 568

                    Temporal lobe - p. 568

                    Frontal lobe - p. 568

                    Parietal lobe - p. 568

Thalamus - p. 567 + 568

Hypothalamus - p. 567 + 568 + 588 + 589

Pituitary gland - p. 567 + 588 + 589

Limbic system - p. 568

          Endorphins - - p. 480 + 566 Are a type of natural pain killer in the brain

                    Dopamine - - p. 566 A type of neurotransmitter found in the brain

Cerebellum - p. 567 + 569

Medulla oblongata and Pons - p. 567 + 569

*Peripheral nervous system - PNS - p. 562

          Nerve tract - p. 480

Somatic nervous system - p. 571

Autonomic nervous system - p. 571 + 572

          Sympathetic nervous system - p. 572

          Parasympathetic nervous system - p. 572