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13 Cards in this Set
- Front
- Back
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Functions of cerebrum |
Controls voluntary actions Receives and interprets all sensations Controls all higher thought processes |
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Function of cerebellum |
Co-ordinates voluntary movements Maintains muscle tone, balance and equilibrium |
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Function of medulla oblongata |
Controls all involuntary actions Contains reflex centre's responsible for : Breathing Regulating heart rate Dilation and construction of blood vessels Swallowing |
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Structure of the brain |
Grey matter on the outside White matter on the inside Left side controls the right side and vice versa 2 hemispheres separated by the corpus callosum Thalamus below the corpus callosum Hypothalamus below the thalamus |
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Reflex action |
A rapid, automatic involuntary response to a stimulus Prevents you from getting hurt further |
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Reflex arc |
Effector - muscle Refers to the path taken by an impulse during a reflex action - functional unit of the nervous system |
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Medulla oblongata damaged |
Breathing and all other involuntary actions are negatively affected |
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Cerebrum is damaged |
Vision will be poor and other sensations Voluntary actions will be affected Higher thought processes negatively affected could lead to mental disabilities |
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Cerebellum is damaged |
Poor balance Lack of co-ordination of muscle movement |
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Spinal cord is damaged |
Impulses from the brain to and from different parts of the body will be negatively affected |
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Significance of reflex action |
Protects us from any sudden stimulus which may harm us Protects us from further injury |
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Grey matter |
The material in the brain and spinal cord which contains cell bodies and dendrites of nerve cells |
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White matter |
Material in the brain and spinal cord which contains axons and myelin sheaths for nerve cells |
