on the task males or females were more or less resistant for the muscle group being used. Valley Center High School physiology students conducted experiments on muscle size and strength and muscle fatigue. With this in mind‚ the data the students collected from these labs and other sources shows how muscle size and sex have an impact on an individual’s muscle fatigue resistance. First‚ the muscle size of an individual determines how long they can withstand certain types of physical activity. For
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of teenage death. Alcohol‚ the most widely used and abused drug among youth‚ causes serious and potentially life-threatening problems for this population. Motor vehicle crashes are the leading cause of death for teenagers. Society faces several questions‚ like why do teens drink‚ what are the results of teen drinking and driving‚ and how can society change this pattern. Every year hundreds of teens die. Apart from drinking and driving‚ teen suicide is the fastest growing killer of youth and if left
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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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Discuss the relationship between distribution of muscle fibre type and performance. How might exercise training modify or change a person’s fibre-type distribution? There are four different types of muscle fibres: type 1‚ type 2a‚ type 2x‚ and type 2c. “A single skeletal muscle contains fibres having different speeds of shortening and ability to generate maximal force: type 1 (slow-twitch) fibres and type 2 (fast-twitch) fibres. Type 1 fies take approximately 110 ms to reach peak tension when
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A Vision Achieved Jefferson envisioned a government that allowed its citizens to exercise inalienable rights. In exact words‚ he states‚ " We hold these truths to be self-evident‚ that all men are created equal‚ that they are endowed by their Creator with certain inalienable Rights‚ that among these are Life‚ Liberty‚ and the pursuit of Happiness." To be more evident‚ how can we define these "inalienable rights" of "life"‚ "liberty"‚ and the "pursuit of happiness?" Have these inalienable
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My Goal Achieved One of the biggest challenges in meeting any goal is finding the motivation to stick with it. To achieve a goal you have to have patience and you also have to be able to make sacrifices. My goal for my junior year in high school was to make straight A’s and to maintain them throughout the entire year. In order for me to accomplish this I had to sacrifice many things‚ but that is was what I was willing to do. The reason why I wanted to get straight A’s wasn’t just to make my parents
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both positive and negative implications for the American worker and student. Task: Write a four paragraph essay reflection on our Globalization mini unit in which you address the following question: Is globalization a positive or negative force for change? Organization: Introduction: • Include a few sentences that give background information on globalization • ]gr Thesis statement that answers the question Two body paragraphs: • One paragraph on the
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your scantron. 1. A motor unit refers to a. a single muscle fiber plus all of the motor neurons that innervate it b. all of the motor neurons supplying a single muscle c. *a single motor neuron plus all the muscle fibers it innervates d. a pair of antagonistic muscles e. all of the muscles that affect the movement of any given joint 2. Which of the following is NOT associated with the thin filaments in skeletal muscle: a. tropomyosin b. *titin c. actin d. troponin
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Muscle Physiology Purpose: What is the purpose of this exercise? Are there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. Refer to the appendix of this manual if you need a tutorial on how to make graphs in Microsoft Excel®. Exercise 1: Muscle Twitch Data Table 1A: Muscle Twitch of Rectus Data Table 1B: Muscle Twitch of Lateralis Eye Muscle Quadriceps Femoris Time (milliseconds) Tension (kilogram-force)
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Muscle Tissue 1. How is muscle tissue categorized? Muscle tissue is categorized by its shape‚ the number of nuclei‚ and the mechanism of stimulation. 2. a. Click the Smooth Muscle Tissue. Identify each of the following: Nucleus----- Smooth Fiber Muscle------------------ b. Describe smooth muscle control (voluntary or involuntary). Involuntary c. Name some smooth muscle functions (click the “Tissue Locations” button). Smooth
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