Presentation on theme: "Biology & Behavior. The NERVOUS SYSTEM What is its function? –Involved in thinking –Involved in dreaming –Involved in feeling –Involved in moving –Involved."— Presentation transcript:
How do neurons work? http://www.youtube.com/watch?v=ys DGX6bOgAw
COMMUNICATION Messages are sent and received through NEURONS (see transparency) and received through NEURONS (see transparency) Messages are sent from the AXON terminals of one neuron to the DENDRITE of the other neuron
COMMUNICATION Messages is sent across the synapse through NEUROTRANSMITTERS or chemical messengers who carry impulses
NEURO- WHAT!? Much like drops of water shooting out of a spray bottle, they fire messages hundreds of times a second. Presence of too many or too little neurotransmitters result in disease and psychological disorders.
Famous Neuro- “T”s Acetylcholine: muscle control, when low our memories are impaired. Dopamine: motor behavior, when low often diagnosed with Parkinson’s Disease, when high often schizophrenic
Famous Neuro- “T”s Serotonin: emotional arousal and sleep, when unequal level may result in OCD, Depression. Noradrenalin: prepares body for action