How do we see?

How do we see?

1. perception: the way the brain makes sense of the visual image detected by the eyes

2. retina: the light-sensitive layer at the back of the eye which is made up of nerve cells called rods and cones

3. rods: light sensitive cells in the retina which respond even in dim light

4. cones: light sensitive cells in the retina that detect colour

5. optic nerve: bundle of nerve cells that leads out from the retina at the back of the eye that carries information from the rods and cones to the brain

6. blind spot: the area of the retina where the optic nerve leaves, it has no rods or gold so cannot detect light

7. optic chiasma: the cross-shape where some of the information from the left and right eye crosses over to pass into the opposite side of the brain

8. visual cortex: the area at the back of the brain that interprets visual information

   • the visual cortex uses information from the eyes in perception to understand shapes and distances, it also fills the gap left by the blind spot in each eye

Imagens e arquivos do mapa