A neuron is a nerve cell in the brain‚ it is essentially the building block of the nervous system. Each neuron is itself a miniature decision making device‚ reacting to signals it receives from hundreds‚ even thousands of other neurons. Each signal is either excitatory or inhibitory. Excitatory signals increase the likelihood of an action potential happening‚ inhibitory make an action potential in a nerve cell less likely. The action potential is a nerve impulse. Once the excitatory signals over
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Traveling in Neurons Two opposing ideas about the nervous system * Reticular theory ( the nervous system consisted of a large network of fused nerve cells) * Neuron theory ( the nervous system consisted of distinct elements or cells * Discovery of staining led to the acceptance of neuron theory. Staining is a chemical technique that caused nerve cells to become colored so they stood out from surrounding tissue * A way of electricity is transmitted in groups of neurons‚ such as the
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The nine major regulatory bodies are: Internal Revenue Service (IRS) which is the federal agency responsible for administering and enforcing the Treasury department revenue laws through the assessment and the collection of taxes‚ determination of pension plan qualifications‚ and related activities‚ Securities and Exchange Commission (SEC) which is an independent federal agency that is responsible for regulating securities market in which stocks and bonds of the major companies is traded‚
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not one major but two. My two majors being Criminal Justice/Criminology and Psychology. Ever since I was very little I have always wanted to be involved with law enforcement like careers or careers that I personally will be able to help someone who truly needs it. I have always been a girl who puts others before myself so picking these two majors will let me succeed and be happy with what I do which is helping people in general. The first major is Criminal Justice/Criminology. What I have learned
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Physiological measurements Body Temperature: This is the body ability of the body to generate and get rid of heat. It is measured via the mouth‚ ear‚ forehead and armpit. The hypothalamus in the brain regulates body temperature. Body temperature is maintained by constant burning of fuel in cells. It burns carbohydrates and fat. This constant burning of fuel is a chemical reaction of carbohydrates/fat with oxygen. This will be converted to CO2‚ water and heat and it is due to that heat the body
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Animal cells do not have a cell wall. Instead of a cell wall‚ the plasma membrane (usually called cell membrane when discussing animal cells) is the outer boundary of animal cells. Animal tissues therefore require either external or internal support from some kind of skeleton. Frameworks of rigid cellulose fibrils thicken and strengthen the cell walls of higher plants. Plasmodesmata that connect the protoplasts of higher plant cells do not have a counterpart in the animal cell model. During telophase
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How neurons communicate Neurons are the specialized cells which make up the body’s nervous system. These nerve cells process and transmit information from one part of the body to another. For example‚ if you were to touch a candle flame for more than an instant‚ pain nerves also known as receptors that are in your finger would send a message up through your hand and arm to the spinal cord and then to the brain. The brain which in turn records pain and sends the messages back down to various parts
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P1- Explain the nature of TWO named physiological disorders. In this assignment I will be looking at the nature of two named physiological disorders. I will explain its sign and symptoms and access possible difficulties involved in the diagnosis of the disorders from their signs and symptoms. The two physiological disorders are coronary heart disease and breast cancer. Coronary heart disease: Coronary heart disease is the build-up of plaque such as cholesterol and other fatty substances within
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Physiological Psychology‚ what is it and why is it important? Physiological Psychology is as described by Kalat (1998) as the study of the physiological‚ evolutionary‚ and developmental mechanisms of behaviour and experience. It is devoted to the study of brain functioning‚ how Neurons and Glia convey messages to one another and other parts of the body for it to function and work accordingly. Future studies of physiological psychology will help predict behavioural patterns in society and how
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Neurons are cells used to perceive the outside environment‚ the internal environment within themselves‚ to formulate behavioral response to those signals‚ and to send that information to other neurons‚ muscles‚ or glands. All information comes into a neuron through the dendrite‚ flows through the neuron and then leaves to go to the next neuron through the axon. Neuron communication does not rely on a single entity but entrusts several different processes that involve the contribution of neuron structure
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