- Neurons cells responsible for electrical and chemical signals throughout the brain. They come in a variety of sizes and shapes, letting them do specific functions in the brain. The place where the interaction between neurons takes place is called the synapses gap. When the electrical signals cross the gap, they are converted into chemical messages, then back to electrical after crossing the gap.
- The brain is divided into different regions. And in the middle of the brain is the reward pathway, which pretty much keeps us motivated. It makes sure that we enjoy things that are necessary for out survival, such as eating. It goes to the front of the brain, but also connects to other areas. These other connections allow it to gather information about what the body is doing. When the senses let the brain know that something is a good action, such as eating something, dopamine is released. The memory of the experience is placed in the brain so you know that eating is something good that the body should keep doing. This increases the likely hood of you doing that again.
- Glia are cells that support neurons. The three types of glia: oligodendrocytes, microglia, and astrocytes. Oligodendrocytes are cells wrapped tightly around the myelin sheath. Microglia are special immune cells that are only found in the brain. Astrocytes hold neurons in place, digest dead neurons, and give neurons nutrients.
- Drugs activate dramatic changes with the synapse, resulting in a jolt of intense pleasure. But since this is not natural, the brain needs a way to adapt to it. And that way is usually shutting down dopamine receptors, meaning that the person
