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pathways
pathways to the brain
| Question | Answer |
|---|---|
| The retina and the brain | light>rodsand cones>neural signals>bipolar cells>ganglion cells>optic nerve>optic chiasm>opposite half brain |
| main pathway: lateral geniculate nucleus(thalamus)>primary visual cortex(occipital lobe) - magnocellular: where (parietal lobe) parvocellular: what(temporal lobe) | second pathway:superior colliculus>thalamus>primary visual cortex |
| Auditory pathway- sound waves vibrate bones of the middle ear>stirrup hits against the oval window of the cochlea> sets the fluid inside in motion> hair cells are stimulated with the movement of the basilar membrane> physical stimulation converted into ne | Chemical senses (taste) pathway to the brain- Taste buds> neural impulse> thalamus> cortex |
| the chemical sense (smell)pathway to the brain-olfactory cilia> neural impulse> olfactory nerve>olfactory bulb (brain) does not go through the thalamus! | Skin senses (touch) pathway to the brain- Sensory receptors> the spinal column> brainstem> cross to opposite side of the brain>thalamus>somatosensory (parietal lobe) |