PSYCH 2 Chapter Notes - Chapter 4-5: Substantia Nigra, Resting Potential, Behavioral Neuroscience
Document Summary
Study online at quizlet. com/_3q9wxz: parkinson"s and a group of nerve cells that control movement, called "substantia nigra", make dopamine. [when the difference in electrical charge between the inside and outside of a cell is] -70 mv. The ratio of negative charges to positive charges is higher inside the neuron than outside it: ions positively or negatively charged particles, 4 factors of. Distribution explains why is there an unequal distribution of negative and positive charges inside a neuron; Random motion molecules will tend to spread out into even concentrations as a result of constant molecular movement/collisions: effects of. Na+ normally comes in the neuron as a result of high outside concentration and negative internal resting potential, and. K+ tends to move out of the neuron as a result of high concentration--but the sodium-potassium pump goes against all that and pumps out sodium, and imports potassium to keep everything at bay and at the -70mv resting potential.
