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Human Nervous system - Coggle Diagram
Human Nervous system
Coordination and response in plants: - Respond to stimuli by changing their rate or direction of growth.
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Plant Hormones
Sensitive region is the tip of the shoot, where the receptor is.
The part just below the tip of the shoot is the one which responds to the stimulus, and where the effector is.
Auxin: Diffuses downwards from the tip, into the rest of the shoot. It makes the cells just behind the tip get longer so they could grow faster.
Central Nervous system: - Made up of the brain and the spinal cord. - Coordinate the messages travelling through the nervous system.
Reflex action: Reactions that you do not need to think about it.- Useful: The message gets from the receptor to the effector as quickly as possible. - Involuntary actions
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Stimulus:
- Changes in an organism´s environment
- Sensed by receptors and the organism respond using effectors
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Neurones: - Special cells that make the HNS. ---Structure adapted to be able to carry out messages quickly
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