Nervous system
- Created by: 08normas
- Created on: 11-03-15 19:22
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- Nervous system
- Peripheral system
- autonomic nervous system-controls unconscious activities
- The parasympathetic nervous system calms the body down. Parasympathetic neurones release the neurotransmitter acetylcholine
- Sympathetic nervous system sets the body ready for action, its known as the fight of flight system. Sympathetic neurones release the neurotransmitter noradrenaline
- Somatic nervous system controls conscious activities
- autonomic nervous system-controls unconscious activities
- Central nervous system
- Cerebrum
- largest part of the brain
- two halves called cerebral hemispheres
- has an outer layer called the cerebral cortex which is highly folded
- involved in hearing, thinking, vision and learning
- Medulla oblongata
- based at the base of the brain
- automatically controls breathing and heart rate
- cerebellum
- under the cerebrum and is also folded
- important for muscle coordination, posture and balance
- hypothalamus
- lower middle of brain
- maintains body temperature
- produces hormones that control the pituitary gland
- Cerebrum
- Peripheral system
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