pysch test 2

function of dendrites

receive signals

process of moving signal through neuron (in terms of chemical/eletric)

starts as an electric signal that travels through the neuron and then changes to a chemical signal to get from the presynaptic to the cleft to the postsyn

___l travels down the length of the axon resulting in a ___ release

action potential / neurotransmitter

are neurotransmitters and action potentials the same thing?

no! → neurotransmitters can excite or inhibit the AP by binding to postsyn receptors and controlling which ones are open/closed (which means certain ions can/can’t get in → ups/downs the voltage inside the cell)

temporal summation

a single neuron sends multiple action potentials close together

spatial summation

combo of multiple IPSP’s and EPSP’s from multiple neurons

electrical potential

the difference in charge between the outside and inside of a cell

graded potential

• receive initial sensory input that can vary in size