Thato’s muscle had remained unused for 6 weeks. Once the cast is removed and he steps down from the examination table‚ his muscle begins to contract. Due to this 6 week period of rest‚ the muscles initial strength of contraction may be significantly low as compared to its strength a few minutes later. The strength of contraction of his muscle increases to a plateau‚ which is termed the staircase effect. Due to his muscles low initial strength of contraction‚ Thato loses his balance and falls. 1
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flask using a volumetric pipette. The volumetric flask was then filled to the mark with distilled water. The flask was covered with Parafilm and inverted to mix. The next part of the experiment was to determine the Vitamin C in a solution of known concentration. Observations of the Vitamin C sample and the amount found on the label was recorded. A tared piece of weighing paper was used to weigh 0.27 g of Vitamin C. The Vitamin C was then transferred to a clean 50 mL volumetric flask. The flask was filled
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world without music. Music is used in all aspects of life but do we ever stop to think how it affects the brain? Well music has very beneficial effects on the human brain. Just listening to music will enhance your brain. Instrumental music has amazing impacts on the brain. Instrumental music will allow you to concentrate on tasks that involve thinking and concentration. In the article “How Does Music Affect Your Brain?” written by the Ashford University Staff they write‚ “Once it’s time to buckle
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Taylor Malseed How Stress Affects Health Stress is any change in your normal routine or health. Stress occurs when bad things happen‚ as well happy things. Getting a raise or promotion is stress‚ just as getting fired from your job is stress. Because of the overabundance of stress in our modern lives‚ we usually think of stress as a negative experience‚ but from a biological point of view‚ stress can be a neutral‚ negative‚ or positive experience. People’s behaviors and stress responses are
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Muscle contractions are due to the sliding-filament model where the filaments slide longitudinally past each other producing an overlap between thin and thick filaments. The sliding filaments rely on the reaction between actin and myosin. Calcium ions bind to the troponin complex on the actin filaments and cause the tropomyosin to change the orientation of the actin filament to expose the myosin head binding sites on the actin filament. Glycolysis and aerobic respiration generate adenosine triphosphate
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Muscles and the Sliding Filament Theory Outcomes (ALL) Give 2 examples of voluntary and involuntary muscle movements (MOST) Explain the purpose of the sliding filament theory (FEW) explain the key stages of the sliding filament theory (MOST) Give 4 examples of voluntary and involuntary muscle movements Recap of Muscles Remember skeletal muscle is under voluntary control It is also called striated muscle because of its striped appearance. Skeletal muscle fibres are large. They may
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increasing people’s susceptibility to chronic diseases. While it is apparent stress can cause symptoms of illness such as headaches and chest pains‚ many are unaware of the strength stress has on health (American Psychology Association). Stress affects health in many ways‚ one of these is through the reduction of the body’s immunity to diseases. It is apparent now more than
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Does physical activity help improve memory? And‚ if so‚ what kinds of physical activity improve memory the most? Memory is defined as the faculty or capacity by which the mind retains‚ stores‚ and revives information and recognizing previous experiences. It is the process of remembering. Memories come from different areas of the brain and different sets of cells. When someone experiences something‚ or even notices something‚ a pulse is fired inside the brain‚ connecting two cells. As something happens
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Question Give an account of how enzymes work with particular reference to factors that affect their activities. Answer All living things require catalysts to catalyse the reaction which they carry out to survive. Enzymes are the catalysts of biological systems without enzymes reactions in cells would occur all much to slow a rate and the organism would not survive. Most enzymes‚ with the exception of some RNA catalysts‚ are proteins. They often require a co factor such as zinc or iron‚ or a complete organic
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10/19/2013 1. Feelings can affect the decision making of a person drastically. Sometimes this affect can be positives‚ whereas at other times it is not. The most common instance in which emotions can get the best of a person’s actions or decision making that I can think of is sports. In sports emotions can be both a positive and a negative when it comes to affecting decisions. Sometimes if the game is close‚ and emotions are high it can lead you to make a good‚ quick‚ muscle-memory like play that would
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