| A | B | 
| The nervous system consists of.. | 3 components | 
| Central nervous system | Brain, spinal cord and relay neurones | 
| Peripheral Nervous system | Sensory neurones and Motor neurones | 
| Types of Nerve cell | Motor Neurone, sensory neurone and relay neurones | 
| Specially adapted cells that can carry an electrical signal | Neurones | 
| Nerve impulse | An electrical signal in the body | 
| Motor neurones | Act on many muscle fibres | 
| The senses | seeing, hearing, tasting, smelling and touching | 
| Elongated(long) | The motor neurones are.. | 
| Nucleus | Centre of cell body |