The Nervous System 0.0 / 5 ? BiologyNervous system, hormones and behaviourGCSEAQA Created by: Grace17Created on: 02-06-15 18:39 The five different sense organs are eyes, ears, nose, tongue, skin 1 of 15 They all contain different receptors 2 of 15 Receptors are a group of cells which are sensitive to a stimulas 3 of 15 Receptors change stimulus energy to electrical impulses 4 of 15 The central nervous system coordinates a response 5 of 15 The CNS is where all the information from the sense organ is sent and where relflexes and actions are coordinators 6 of 15 The CNS consists of ... only the brain and spinal chord 7 of 15 Neurones are nerve cells 8 of 15 Neurones transmit the information as electrical impulses quickly to and from the CNS 9 of 15 Instructions from the CNS are sent to the effectors (muscles and glands) which respond accordingly 10 of 15 Effectors are muscles and glands 11 of 15 Muscles contract in response to a nervous impulse whereas glands secrete hormones 12 of 15 Sensory Neurones: Nerve cells that carry signals from receptors to the central nervous system 13 of 15 Relay neurones: Carry signals from sensory neurones to motor neurones 14 of 15 Motor neurones: Nerve cells carry signals from the CNS to the effector muscles or glands 15 of 15
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