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What did Franz Gall do?
in the 1800's he had the theory that bumps on the head/skull reveal mental abilities and character traits
What are biological psychologist also known as? (3)
Behavioral neuroscientists, neuro psychologist, behavioral genetics
Individual nerve cell and smallest unit of nerve cell and they are very tiny; 100 billion in brain
What do neurons do?
They receive, process, transmit information and transmit it to other parts of the body
What 3 things are in the soma?
nucleus: contains all DNA; cytoplasm: keeps cells alive; Cell membrane: keeps shape and holds together
What are dendrites responsible for?
Responsible for receiving info from another neuron, listen to it, and transmit it back to the soma
What do the glial cells do? What are the 3 ways?
They support and insulate neurons in 3 ways: holds neurons together, provide nutrients to the neurons, grab excess ions, neurotransmitters in brain
What is inside the neurons and outside the neuron after depolarization?
positive inside and negative outside
Threshold of Excitation
In order for message to be sent the least amount of stimulation need to push it to make it feel something
Absolutely refractory period
Neuron will not fire again no matter how strong the next message is; still in depolarization; exhausted
What did Sherrington conclude?
that neural impulses took awhile to travel along neural pathways and concluded that somewhere along the process; message was being interrupted; Concluded we have a SYNAPSE
What are the 4 structures the synapse consist of?
Axon terminal, terminal buttons, synaptic space, and dendrites
Goes down _____ to _____ and ______ where synaptic vesicles are breaking?
axon to axon terminal to terminal buttons
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