1) Long 2) Dendrites (branched endings) that pick up impulses 3) Insulator sheath
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A synapse is...
A gap between neurones
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What happens when an impulse arrives?
The release of a transmitter substance is triggered -> diffuses across the synapse -> it binds with receptor molecules in the membrane of the next neurone -> impulse continues
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Other cards in this set
Card 2
Front
Refracts (bends) light rays and focuses it onto the retina
Back
Lens function...
Card 3
Front
Contains light receptors (image is focused here), contains 2 photoreceptor cells: rods (dim light and black&white) and cones (colour)
Back
Card 4
Front
Controls how much light enters your pupil and decided colour of eye
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