are referenced appropriately in accordance with the referencing guide‚ and that I have not copied from any source. How Do Nerve Cells Work and Why is it Important for Psychologists to know this? Biological psychology hypothesises that the nervous system has the ability to influence the way we see the world around us. So much hinges on the existence of these cells that even different schools can agree upon their existence. A nerve cell‚ also known as a neuron‚ is defined as “Any of the impulse
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A Better Understanding: Neurochemistry of Addiction To better understand the fundamentals of neurochemistry‚ a good start is at the brain. The brain makes up the central nervous system and is connected to the whole nervous system that runs through the whole body. The central nervous system receives sensory information and controls the body’s response. For example‚ a pot on a stove would be extremely hot on the hands when the stove is on and would damage the skin. This sensory information is sent
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P2 Outline the structure of the main tissues of the bodyTYPES OF TISSUES: Epithelial Connective Muscle Nervous -112395159385 Epithelial Tissue Epithelial tissue covers other tissues. Epithelial tissues are very thin layers of cells used to cover organs and other surfaces. May be found covering blood vessels‚ individual organs and other small organs. There are 4 types of epithelia tissue. Pavement or Squamous Epithelium 54667158826500Squamous epithelium is the scientific name for a type
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psychologists sometimes called Behavioural neuroscientist‚ neuropsychologist‚ behaviour geneticist‚ psychological psychologist‚ bio psychologist … * We are a system of substances‚ that are composed of even smaller substances (tiny cells make up body organs) * Body’s information system is built from billions of tiny interconnected system of neurones * Sensory Neurones – neurons that carry incoming information from the sensory receptor the brain and the spinal cord for processing – “afferent”
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Ivan Pavlov A Man and His Dogs Many students who eat a hearty breakfast and do not feel hungry as lunchtime rolls around find themselves rushing to the lunchroom with a ravenous appetite as soon as the bell rings. A typical conditioned response‚ just as Pavlov’s famous dogs did many years ago. Nobel Prize winning physiologist‚ Ivan Pavlov‚ first identified this psychological/physiological phenomenon in the late nineteenth century. Since then‚ the term “Pavlovian Response” has become synonymous
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Maintaining a Balance 1. Most organism are active in a limited temperature range The role of Enzymes in metabolism‚ their chemical composition and specificity on substrates Role of enzymes * Enzymes are organic catalysts. They are protein molecules that increase the rate of the reactions in living organisms. * Without enzymes‚ metabolic reactions at body temperatures would be too slow to produce sufficient energy to maintain life * Intracellular enzymes are used in the cells
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which are needed to live. Some of those elements are calcium‚ phosphorus‚ potassium‚ sulfur‚ sodium‚ magnesium‚ and many more. In the circulatory system‚ two elements that are critical to the circulatory system are iron and oxygen‚ without these two elements it would be impossible for the system to function. The circulatory system is an organ system that permits blood and lymph circulation to transport nutrients (such as amino acids and electrolytes)‚ oxygen‚ carbon dioxide‚ hormones‚ blood cells
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about stress (e.g.‚ Cannon’s‚ Selye’s‚ etc.) Stress & the Immune system – Acute vs. prolonged stress & illness; Physiology of stress & immune system functioning -SAM System- Sympathetic adrenomedullary system. Results in release of catecholamines. -HPA System- Hypothalamic-Pituitary-Adrenocortical system. Results in release of corticosteroids-cortisol. Chronically elecated levels-compromises the immune system. Destruction of hippocampal neurons. Increase in storage of centripetal
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simultaneously and very quickly. The brain itself requires extremely fast speeds to operate at even at the simplest level. How do the biological tissues of our body support such rapid coordination of the brain‚ limbs‚ and sensory input? They do so with nervous system tissue that imitates electrical wiring. A series of photomicrographs and schematic illustrations show myelinated nerve fibers. Panel A is an illustration of a single neuron with major structures labeled. Panel B is an illustration of a cross
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people) Normally‚ neurons in the central nervous system (the brain and spinal cord) cannot regenerate injured nerve fibers‚ limiting people’s ability to recover from brain or spinal cord injuries. Repair of the central nervous system and restoration of voluntary motor activity through axonal re-growth has long been considered impossible in mammals. Over the last decade‚ numerous attempts proved disappointing overall. While repair of the central nervous system has long been considered impossible have
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