Nervous control 2.0 / 5 based on 1 rating ? BiologyCellular processes and structureA2/A-levelAQA Created by: laurenCreated on: 27-02-13 15:59 the simplest type of nervous response to a stimuli is... reflex arc 1 of 20 the nervous system has two major divisions, these are... the central nervous system and the periphal nervous system (CNS and PNS) 2 of 20 the central nervous system is made up of... the brain and the spinal cord 3 of 20 the peripheral nervous system is made up of... pairs of nerves that originate from either the brain or spinal cord 4 of 20 the peripheral nervous system is divided into... sensory neurones and motor neurones 5 of 20 sensory neurones function to carry nerve impulses from receptors towards the central nervous system 6 of 20 motor neurones fuction... to carry nerve impulses away from the central nervous system, to effectors 7 of 20 the motor nervous system can be furthur divided into... the voluntary nervous system and the autonomic nervous system 8 of 20 what does the voluntary nervous system do... carries nerve impulses to body muscles and is under voluntary (conscious) control 9 of 20 what does the autonomic nervous system do... carries nerve impulses to glands , smooth muscle, and cardiac muscle and is not under voluntary control, it is involuntary (subconscious) 10 of 20 what is the spinal cord a column of nervous tissue that runs along the back and lies within the vertebral column for protection 11 of 20 where does the spinal cord lie... why... within the vertebral column for protection 12 of 20 what emerges at intervals along the spinal cord nerves 13 of 20 what is a reflex an involuntary response to a sensory stimulus 14 of 20 the pathway of neurones involved in a reflex is known as... reflex arc 15 of 20 reflex arcs involve just....neurones three 16 of 20 one of the neurones is located where also making this type of reflex known as the spinal reflex spinal cord 17 of 20 one of the neurones is located wihin the spinal cord making this type of reflex known as spinal reflex 18 of 20 the main stages of a spinal reflex are stimulus--receptor--sensory neurone--intermediate neurone--motor neurone--effector--response 19 of 20 Why are reflexes important dont overload brain, protect body from harmful stimuli, they are fast 20 of 20
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