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Muscular System Anatomy, Diagram & Function Without muscle, humans could not live. The primary job of muscle is to move the bones of the skeleton, but muscles also enable the heart to beat and constitute the walls of other important hollow organs. There are three types of muscle tissue: Skeletal muscle: This type of muscle creates movement in the body. Muscle movement happens when neurological signals produce electrical changes in muscle cells. Muscle pain is a common issue that can signal numerous problems, even if it’s something as simple as overuse. Muscle pain Sprains and strains Bruising Cramping Myopathy Muscular dystrophy Parkinson’s disease Fibromyalgia Multiple sclerosis Proper nutrition and exercise is important to keeping all muscles healthy, whether they are cardiac, smooth, or skeletal.
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A Rough Guide to Social Skills for Awkward Smart People I am a full-on dork. The things that make me want to get up in the morning are things that make normal people lose interest in the conversation, or giggle. These are things like lucid dreaming, artificial intelligence, utopian movements, and Esperanto. Be that as it may, I'm mostly fine with boring the normals and living in the Vibrant True World of Beauty with its other full-on dork denizens. The other thing that holds my kinsmen together, though, is an unfortunate thing: they are all asses. In case you're wondering if my sermon is directed to you, there are some common tropes in our oft-reenacted social suicide: We call someone's beliefs "idiotic." I can hear your retort, oh ye smart and lonely. Great. People don't respond well to being told that they're idiots, even if they are. I would propose that sacrificing some smaller truths in your day-to-day interactions is the only way for the greater truth to prevail. Be a Good Spy or (B) "Heil Hitler." The Old One-Two Ani Difranco has a trick.
Neuropsychological Assessment, Diagnostics and Cognitive Rehabilitation Therapy Neurotransmitters-Serotonin: An Overview - Associated Content - A neurotransmitter is a chemical that is released from neurons in order for signals to be passed from one neuron to another. These chemicals are stored in the terminal buttons of a neuron and are released into the synapse between two neurons in order to carry the signal from one to the other (Davis, S. & Palladino, J. (2007). The neurons terminal buttons do not touch each other but get near the dendrites of the neighboring neurons and pass the neurotransmitter signal to the next neuron. A neuron is electrically charged and when a neuron releases this energy this is called exciting the neuron. Lack of communication between neurons can lead to a number of physical and mental disorders such as arousal problems, depression, Alzheimer's disease, seizure disorders and epileptic seizures. One of these types of neurotransmitters is serotonin which is located in the brain stem and controls sleep, mood, aggression and appetite. References Davis, S. & Palladino, J. (2007). UpperSaddle: New Jersey
Feelings of Knowing : The Frontal Cortex Clive Thompson has a wonderful article in the NY Times Magazine on Watson, the supercomputer programmed to excel at Jeopardy. Thompson delves into the clever heuristics used to generate singular answers to ambiguous questions. (Watson relies on massive amounts of parallel processing, so that “he” is running thousands of Google searches simultaneously.) While Watson’s performance is certainly impressive, I thought the most interesting part of the story involved the failings of the machine. It’s easy to rhapsodize about the ever escalating speed of microchips, but it turns out that Watson is often too slow at ringing the buzzer: In more than 20 games I witnessed between Watson and former “Jeopardy!” This anecdote highlights one of the most impressive talents of the human mind. What’s interesting about this mental hiccup is that, even though the mind can’t remember the information, it’s convinced that it knows it. This is where feelings of knowing prove essential.