Biological Psychology

Assignment 1
Biological Psychology
September 27, 2012

Neurons are very eventful cells. There are several major parts to the neuron. such(prenominal) as the cell body, the cell body is where the heart is located. The nucleus contains the chromosomes. The cell body is also filled with cytoplasm, which is a liquid gel that holds things in place in the cell body. The d dismissrites are also an classical part of the neurons. Dendrites are like elfin arms that come out of the cell body. They are utilise to receive and collect information from the new(prenominal) neurons. Another important part of the neuron is the axone. The axon hillock is the beginning of the axon where the action potential begins. The axon is a long bunghole that comes out of the cell body. It is used to send nerve impulses external to other neurons. On most axons there is myelin sheath. bulb sheath is insulation around the axon and it helps speed up the signal. The last major part of the neuron is the terminal buttons. That is the end of the axon and their function is to release the chemicals to communicate with the other neurons.
opus the neuron is at rest, also called the resting potential, the neuron has a pull of -70mV. The negative charge is due to the fact the potassium pump. It pumps leash Na+ ions out of the neuron and lets two K+ into the neuron.



That helps the neuron to maintain its polarization of the cell.
The concentration gradient is the difference of ions and charges in and around the neuron. When there is a high concentration of ions in one area they will diffuse in other areas. Diffusion is when a molecule goes to an area where there is slight concentration, and it eventually spreads out evenly. Just like a get around of food coloring in a glass of water.
When the neuron begins to depolarize that is when the action potential begins. It begins at the axon hillock. The to a greater extent a neuron is stimulated the more the Na+ carry will open up, and the more Na+ will place the cell. At one point the neuron will run low so...If you want to get a full essay, order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper