The types of excitatory transmitters that could be brought on are dopamine‚ norepinephrine‚ epinephrine or acetylcholine‚ and glutamate. Each one of these is used for something different in the body and include a different process. Like stated before‚ these types of transmitters are transmitted through chemical messengers to the brain. Since we are
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With children as early as age 7 showing dissatisfaction with their body‚ and as young as 9 starting dieting‚ eating disorders are a serious issue in our society. Taking a look at perceptions‚ behaviors‚ and medical issues associated with the disorders of anorexia and bulimia‚ scholars have tried to categorize and find answers to the problems which certain adolescents suffer. In this paper I focused on the two major eating disorders of anorexia and bulimia. In 1978‚ Brunch called anorexia nervosa
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Biochemistry of Muscle Contraction Fred P. Guillergan M.D.‚ FPCP Outline histology and biochemistry of muscles (Striated & smooth) – Myosin – Actin‚ Tropomyosin‚ Troponin – Accessory proteins of muscles Biochemical events in muscle contraction Calcium‚ Ca2+-binding proteins and Ca2+ channels in muscle contraction Biochemistry of Cardiac & Smooth muscle contraction Energetics of muscle contraction ☻Able to understand the normal anatomy and physiology of different types of muscles
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Pharmacology Project: Nicotine Pharmacological Category: Stimulant By definition‚ nicotine is a highly addictive central nervous system stimulant. Nicotine behaves in the body much in the way caffeine does. Mainly‚ it gives you focus‚ concentration‚ accelerates your heart rate‚ breathing rate‚ and increases blood pressure. Cigarettes and other tobacco products are both physically and psychologically addictive‚ because they contain a powerful drug called nicotine . Nicotine is a
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Chapter 11: Cell Communication Cell-to-cell communication is essential in multicellular organisms. They must communicate to coordinate activities such as growth and development‚ and reproduction. In addition unicellular organisms communicate with each other. Signals may use light‚ or touch but we will focus on chemical signals. 1. External signals are converted to responses within the cell a. Evolution of cell signaling i. In yeast a cells and αcells both secrete chemicals
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How neurological processes affect behaviour and impact the field of biological psychology Psychology as a field of study has evolved from the human need to understand ourselves and the causes behind our behaviours. Philosophy tried its hand first‚ attempting to describe it as a complex interaction between the mind and the body – between the mental and the physical. This basic idea resonates through this field of exploration through the years. While there have been diversions from this line of
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Reward dominance Theory “Reward dominance theory is a neurological theory based on the proposition that behavior is regulated by two opposing mechanisms‚ the behavioral activating system (BAS) and the behavioral inhibition system (BIS.)” (Walsh & Hemmens pg 304) The BAS is related with the neurotransmitter dopamine and with joy ranges in the mind. The BIS is related with serotonin and with cerebrum structures that represent memory. Neurotransmitters‚ for example‚ dopamine and serotonin are the compound
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4. To define extrasystole‚ and to explain at what point in the cardiac cycle (and on an ECG tracing) an extrasystole can be induced. 5. To describe the effect of the following on heart rate: vagal stimulation‚ cold‚ heat‚ pilocarpine‚ atropine‚ epinephrine‚ digitalis‚ and potassium‚ sodium‚ and calcium ions. 6. To define vagal escape and discuss its value. 7. To define ectopic pacemaker. I nvestigation of human cardiovascular physiology is very interesting‚ but many areas obviously do not lend
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when there is not enough sugar or glucose to supply the body’s fuel needs. This occurs overnight‚ and during dieting or fasting. During these periods‚ insulin levels are low‚ but glucagon and epinephrine levels are relatively normal. This combination of low insulin‚ and relatively normal glucagon and epinephrine levels causes fat to be released from the fat cells. The fats travel through the blood circulation to reach the liver where they are processed into ketone units. The ketone units then circulate
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Section 1: Simply put‚ homeostasis is the maintenance of a constant internal environment in the body. (Givens and Reiss‚ 2002). To look into this definition further‚ according to Walter Cannon‚ homeostasis can be described as the way the brain coordinates body systems‚ with the aim of maintaining a set of goal values for key internal variables (Goldstein‚ 2008). Homeostasis aims to maintain a constant internal environment helping to keep internal conditions at an optimum in order for all cells in
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