1.the brain can only understand electrical signals 2.receptors in the eyes change light into...
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The EyeTRANSCRIPT
1. The brain can only understand electrical signals
2. Receptors in the eyes change light into electrical signals
3. Receptors in the ears change sound into electrical signals
4. The iris can change the size of the pupil depending on light intensity
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Sense organs
Sense organsSense organs
Sense organs
The EyeThe Eye
The Eye
The EyeThe Eye
The Eye
The EyeThe Eye
The Eye
Iris and PupilIris and Pupil
Iris and Pupil
Vibrations to the EarVibrations to the Ear
Vibrations to the Ear
The EarThe Ear
The Ear
The EarThe Ear
The Ear
The EarThe Ear
The Ear
1. The nervous system transports electrical impulses from receptors to the central nervous system (brain and spinal cord) and then back to effectors
2. There are three types of neurone3. The reflex arc allows us to make
emergency decisions in less time
The Nervous SystemThe Nervous System
The Nervous System
Receptor cellsReceptor cells
Receptor cells
NeuronesNeurones
Neurones
NeuronesNeurones
Neurones
The Nervous SystemThe Nervous System
The Nervous System
Reflex actionsReflex actions
Reflex actions
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