Neurones T O N U T A S

Neurones T O N U T A S T E B S R E D L S N O D S S D E R M M A G N O S X I C S E P N N U L G N R E L I I E N E K D Z H L P E E L T S P C R I E A M N U G P S E A S H S D L L S T O R E A E U R S A B R B Y R W T P U D T U J U Z R X P V D R J B A O B T E Nerves are bundles of long cells called neurones Q 1. Find these words. They are all stimuli that are detected by receptors BALANCE PRESSURE TASTE LIGHT PAIN SMELL SOUND TEMPERATURE The letters left over spell a secret message __ __ __ __ __ __ __ Across 3. The sense organ for balance 5. Nerve endings 8. A bundle of neurones 1. that the nose detects 9. Stimuli Down These detect taste 2. A very long cell that carries impulses 4. A type of neurone 6. Sense organs that detect light 7. Where pain receptors are found __ __ Q 2. Do the crossword

Q 3. Match the keyword to the definition Impulses travel up the sensory neurone to the spinal cord. Q 4. Put the sentences in order to show why you lift your arm away from a sharp object like a pin. The arm lifts up away from the pin. Impulses travel from the spinal cord down the motor neurone. 1 The person’s finger touches the pin. The pain receptors in the skin detect pain. The impulses reach the bicep muscle. They cause the muscle to contract (get smaller)