Excitation Contraction Coupling Process The sequence of events that converts action potentials in a muscle fiber to a contraction is know as excitation contraction coupling. In order for a skeletal muscle fiber to contract‚ it has to get a signal from the nervous system. The part of the nervous system that it gets a signal from is called a motor neuron. An electoral signal‚ called an action potential travels down the axon and to the axon terminal. At the end of the motor neuron are structures
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conversion of glucose into glycogen. In positive feedback‚ the body reacts to a change from the normal state by causing an even greater change. Examples of positive feedback: (1) when constrictions in the uterus push a baby into the birth canal‚ contractions in the uterus increase; (2) when a blood vessel is damaged‚ the vessel constricts and chemicals are released to plug and repair the hole. Body Temperature Homeostasis In warm-blooded animals such as humans‚ body temperature must be maintained
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MANY PROCESSES MUST TAKE place within the skeletal muscle fibres in order for muscle contraction to occur. The cross bridge cycle‚ process by which the muscle length is shortened as myosin heads‚ extending from the myosin filaments‚ interact cyclically in a rowing motion with the actin filament (Rayment et al. 1993)‚ is one of the crucial mechanical events required. The mechanism is initiated when an ATP molecule is bound to a myosin head. An enzyme within the head. known as ATPase‚ hydrolyzes the
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It’s very important for a medical assistant to know the difference between Alzheimer and dementia. Also‚ it’s very important to educate yourself and do research on Alzheimer and dementia.They both based on memory loss that changes an individual’s daily life. But Alzheimer and dementia are different. Dementia are caused by strokes. Alzheimer is unknown cause the patient wouldn’t know about. Both dementia and Alzheimer is based on memory loss that changes an individuals daily life. Like with most
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earn. When one speaks of an independent or a strong woman‚ one generic poster is pictured. J. Howard Miller’s “We Can Do It!” with an image of a woman‚ flexing her bicep is a famous piece of propaganda created during World War II. She flexes her muscles in a way only men during that time period were socially allowed to do. When this photo is spoken of‚ the women in the picture is never referred to as a lady. She is referred to as a strong woman‚ instead. Beyonce Knowles‚ a famous singer addresses
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Aquarius(Sports Drink) Background Aquarius is a new isotonic sports drink launched in Asia at the year 2012 by The Coca-Cola Company. Aquarius was introduced in Japan in year 1983 as a grapefruit flavored sports drink as a response to compete for market share with other isotonic sports drinks such as Pocari Sweat‚H2O and 100plus.Aquarius was also the official sports drink for Olympics game in Barcelona in 1992 and 2012.As it’s a new launch product in Asia‚ there’s a need to create awareness to
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Muscle and Nerve Preparation Preparation of Ringer ’s solution Dissolve 6.5 g of sodium chloride (NaCl)‚ 0.14 g of potassium chloride (KCl)‚ and 0.20 g of sodium bicarbonate (NaHCO3) in 800 mL of distilled water. Also‚ dissolve 0.16 g of hydrated calcium chloride (CaCl2.2H2O) and 0.39 g of hydrated magnesium sulfate (MgSO4.7H2O) in 100 mL of distilled water. Add the 100 mL cautiously to the 800 mL‚ stirring vigorously. Then make the final volume equal to 1 liter by adding more distilled water
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are very similar in role responsibilities‚ yet have very subtle differences. Both roles are instrumental in building strong teams of employees and compliment each other as they work towards the same goals. While there are many similarities to be defined between the two roles‚ there are a few notable differences which can help to distinguish between a manager and a leader. I feel it is absolutely necessary to highlight these differences to my fellow employees so they understand the importance of my
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Laboratory – Muscle Physiology A. MUSCLE TONUS Observations‚ Report and Conclusion: A. Define muscle tonus and give its importance * Muscle tonus refers to a state of slight muscular contraction maintained by synchronous impulses of low frequency‚ discharged by the spinal motor neurons. * Reflex in nature. * Muscle tonus is a small amount of tension in the muscle due to weak‚ involuntary contractions of its motor units. Muscle tonus is important in a sense that it governs the
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Muscle Fatigue Monira Begum How muscles work and get the energy they need to work. Muscles need energy to work and move. (1) Their main source of energy is glucose. Glucose is made of a number of different types of carbohydrates (usually sugar) as well as milk and fruits. Glucose turns into other chemicals such as water and carbon dioxide which releases energy. (2)Your muscles get warm when using or burning energy. Glucose is sent to muscles through red blood cells; this is how muscles get
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