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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Week Four Quiz Chapter 9 Muscular System: Histology and Physiology ________________________________________ 1. Which of the following is NOT a function of skeletal muscle? a. body movement b. maintenance of posture c. respiration d. constriction of organs e. production of heat 2. Which of the following is true? a. Skeletal muscle is capable of spontaneous contraction. b. Smooth muscle is found in the walls of hollow organs. c. Cardiac muscle cells have multiple nuclei. d. Smooth
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HSC Core 2: Factors Affecting Performance Chapter 5: How does training affect performance? Energy systems * alactacid system (ATP/PC) * lactic acid system * aerobic system Energy Systems * The human body requires energy for its organs to function‚ internal processes to take place and to power muscular contractions for movement * Energy in the human body is stored in the chemical bonds that join atoms and is released when needed * The transformation of food‚ chemical
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Muscular Strength Muscular Strength A way to test or improve a person’s Muscular strength will be to do some weight lifting. The amount of weight a person can lift will show how much strength the person has. For example if I can lift 15 kg and do 6 reps without struggle this will mean I have a certain amount of muscular strength. If I can’t do the same with 30 kg this will show what level my muscles are at‚ in other words how strong they are. The amount of squats a person can do tests a person’s
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The muscular system is one of the most complex organ systems in the body‚ and it is imperative to the body’s survival‚ as it serves many significant functions‚ including movement‚ protection‚ posture‚ and heat production just to name a few. The muscular system has three types of muscle: skeletal‚ smooth‚ and cardiac. However‚ the main focus will be on the skeletal muscles and how they contract‚ as well as fatigue and respond to changes in temperature. In terms of the anatomy of the skeletal muscle
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DIFFERENCE BETWEEN POISE AND POSTURE Posture and Poise Good Posture or Good Use? For many people‚ the Alexander Technique is closely associated with cultivating good posture. However the term posture is inadequate to convey what it is the Alexander Technique aims to improve. When it comes to posture‚ it is generally assumed that more uprightness is better and crooked is bad. There is relative truth in this. But striving for uprightness only brings about misuse in another guise: the straining
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Unit 4222-254 Outcome 1 Understand the importance of differentiating between the individual and disability Explain why it is important to recognise and value an individual as a person It is important because they deserve as much value and respect as anyone else just because they have disabilities doesn’t mean they should treated as an outsider. If you don’t value them you risk the individual becoming redrawn‚ lacking confidence and upset. Describe the importance of recognising an individual’s strengths
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be popular in the sport’s world today. There are professional athletes who have taken and still take steroids‚ but who can blame them? Steroids are great for the body. They make one stronger‚ more muscular‚ and give athletes better endurance. So what if they can make people unhappy or violent‚ the muscular results of taking steroids are well worth the side effects. Steroids help the body so much; it does not matter if a couple of things go wrong in the body. Baseball may be America’s past time‚ but
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pulley system hooked up to a machine (Behrens & Beinert‚
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Muscular System: Anatomy Review: Skeletal Muscle Tissue 1. Fill in the characteristics of the three muscle types: Muscle Type Cardiac Skeletal Smooth Shape of cell rectangular Parallel‚ cylindrical banded # of nuclei multinucleated multinucleate One or two Striations striated striated non-striated Control Contraction and relaxation for the heart Provides movement and support Involuntary contraction of organ system 2. What attaches muscles to bone? _______Tendons__________________
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