Nervous System 0.0 / 5 ? BiologyNervous system, hormones and behaviourGCSEAQA Created by: kez hodgeCreated on: 16-03-16 20:49 An Effector... Is either a muscle or a gland. 1 of 13 A Reflex... Fast, automatic responses to certain stimuli. 2 of 13 A Motor Neurone... Nerve cells that carry electrical impulses from the relay neurones in the CNS (Central Nervous System) to the effectors. 3 of 13 A Receptor... Many of these are found in our sense organs. They detect the stimulus. 4 of 13 A Relay Neurone... Nerve cells that carry electrical impulses from sensory neurones to motor neurones. They are found in the CNS (Central Nervous System). 5 of 13 A Stimulus... A change in your environment. 6 of 13 A Reflex Arc... Different to a normal nervous pathway as the brain is no co-ordinating the response. 7 of 13 CNS... Central Nervous System. Brain and spinal cord co-ordinates the response. 8 of 13 A Sensory Neurone... Nerve cells that carry electrical impluses from the receptor cells in the sense organs to the relay neurones in the CNS (Central Nervous Symstem). 9 of 13 Sense Organs... Certain receptor cells to detect stimuli. These receptor cells consist of a nucleus, cytoplasm and cell membrane. 10 of 13 A Synapse... A gap between two neurones, it contimnues the message via chemicals being released, and diffusing across the gap. 11 of 13 A Gland... An effector that responds by secreting chemicals calls hormones. 12 of 13 A Muscle... An effector that responds by contracting. 13 of 13
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