![]() To do this, the central nervous system relies on billions of neurons (nerve cells). Some messages are kept within the brain, while others are relayed through the spine and across the body’s vast network of nerves to distant extremities. Some make you feel tired, for example, while others make you feel pain. Different signals control different processes, and your brain interprets each. The brain sends and receives chemical and electrical signals throughout the body. Gray matter is primarily responsible for processing and interpreting information, while white matter transmits that information to other parts of the nervous system. The different composition of neuron parts is why the two appear as separate shades on certain scans.Įach region serves a different role. Gray matter is primarily composed of neuron somas (the round central cell bodies), and white matter is mostly made of axons (the long stems that connects neurons together) wrapped in myelin (a protective coating). In the spinal cord, this order is reversed: The white matter is on the outside, and the gray matter sits within. In the brain, gray matter refers to the darker, outer portion, while white matter describes the lighter, inner section underneath. Gray and white matter are two different regions of the central nervous system. What is the gray matter and white matter? It contains blood vessels and nerves, including neurons and glial cells. The remaining 40% is a combination of water, protein, carbohydrates and salts. Weighing about 3 pounds in the average adult, the brain is about 60% fat. Together, the brain and spinal cord that extends from it make up the central nervous system, or CNS. You won't have to draw the strings in and you are pretty much ready to have a template to start drawing your scales, or chords in.The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body. UPDATE (Append): If you have a decent digital camera, take a picture of your own fretboard, transfer to your computer and use what ever picture editor you have to crop and enhance. You can easily download these images by right clicking and select "save as". Here is an example as used with Microsoft Office Picture Manager and Paint. Then add markers for your scales or chords and save by scale name, such as E minor Pentatonic. Once there, you can copy the element several times to fill the page. Under Paint, you can pull the image in from 'paste from' and then add the strings if these are missing in the photo. Download the image, then edited to tweak the brightness and contrast, crop as needed as offered under Microsoft Office Picture Manager. However, the fastest thing I found was to locate a high resolution shot of a guitar fretboard via Google images. The most relevant things are set the guitar string size to progress from large to small, left to right, put the standard fretboard makers in the right place. I have used a number of roll your own versions to create a fretboard and then draw by hand or with other tools to make patterns for scales and arpeggios.
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