Q1 Muscle contraction can be understood as the consequence of a process of transmission of action potentials from one neuron to another. A chemical called acetylcholine is the neurotransmitter released from the presynaptic neuron. As the postsynaptic cells on the muscle cell membrane receive the acetylcholine‚ the channels for the cations sodium and potassium are opened. These cations produce a net depolarization of the cell membrane and this electrical signal travels along the muscle fibers. Through
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Foot Callus Remover Technologies Discussed There are more than one sophisticated and effective ways today to remove foot calluses. Some are fast‚ while some are effective for longer times. The plus and minus will always be there in any kind of therapy‚ but the best part is that all the therapies work effectively; using one or more of them‚ any person can have a completely callus-free body. Generally‚ calluses do appear on feet and occasionally on hands. This is why people more often look for a foot
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Foot-and-mouth disease or hoof-and-mouth disease (Aphthae epizooticae) is aninfectious and sometimes fatal viral disease that affects cloven-hoofed animals‚ including domestic and wild bovids. The virus causes a high fever for two or three days‚ followed byblisters inside the mouth and on the feet that may rupture and cause lameness. Foot-and-mouth disease (FMD) is a severe plague for animal farming‚ since it is highly infectious and can be spread by infected animals through aerosols‚ through contact
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Why Did the USA Become Increasingly Involved in Vietnam? The Vietnam War- one of the bloodiest‚ grimmest‚ and most trying times of the Cold War. A war that many believed was fought in vain and without purpose and that “…produced no famous victories‚ no national heroes and no patriotic songs…” A war that threw the USA into public disdain for intervening where intervention was not needed; for causing bloodshed when none was called for- and all in the name of a failed policy of Containment and the
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Before the motor neuron cone arrives the muscle fiber‚ AChR clusters are formed in the middle section of a muscle fiber. When the growing nerve cone attaches the muscle fiber‚ Agrin activates Lrp4‚ which then binds to the receptor tyrosine kinase MuSK‚ through this binding MuSK is phosphorylated and starts to form the neural and aneural AChR clustering (Burden 2011). Morphologic differences in the pre- and/or postsynaptic part of the NMJ can be a hint of a certain disease. In the following figure
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preparations go well. I am coming to save your friend’s life‚ and my own.” This is a quote from the first note Miranda receives from the anonymous person in the book When You Reach Me by Rebecca Stead. A 12 year old girl named Miranda lives in New York City in the 1970’s. She gets notes from an anonymous person who can predict the future. The notes ask her to cooperate to the directions given in order to save someone’s life. She must choose to follow the mysterious directions or simply ignore them. Miranda
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ESSAY What Positive Steps You Will Take To Tackle Climate Change? If you ask anybody what positive steps will you take to tackle climate change? Moreover everyone’s answer would be "What will happen if only I start taking positive steps to tackle climate change? First let someone start then I will also start;" Friends this is wrong. To start anything the steps should be taken by us but we will wait till others start and others do the same. What’s the first thing that comes in your mind when you
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curriculum. This has been introduced in schools and colleges for the overall development of the students. This makes expressive skills and managing skills also important for us. It is also important to develop communication skills in relationships. What deserves more attention is that most of us do not feel confident to make presentations and speeches. But realizing the importance of these skills in modern day life‚ most good schools have made it a regular part of their curriculum. Expressive skills
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longer stride duration when compared to the minimalist shoes. Velocity also had a significant impact on stride duration. “Stride duration was significantly greater at V1 than V2 across all conditions “ The results also showed that barefoot running resulted in a higher stride frequency when compared to the traditional and minimalist shoe conditions. Velocity also impacted stride frequency. “Stride frequency was significantly higher at V2 than V1.” (McCallion et al.‚ 2014) When comparing the results
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Bones in our body are living tissue. They have their own blood vessels and are made of living cells‚ which help them to grow and to repair themselves. Every single person has a skeleton made up of many bones. These bones give your body structure‚ let you move in many ways‚ protect your internal organs‚ and more. As well‚ proteins‚ minerals and vitamins make up the bone. Bones have several parts‚ but are manily made out of calcium deposits. It takes around 20 years for our bones to completely harden
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