Bio 201: Human Anatomy and Physiology I Muscle Physiology Protocol I. Goals for this lab A. To increase your understanding of muscle physiology - tonus‚ motor unit recruitment and fatigue. B. Learn how to conduct and analyze an EMG (electromyogram) C. To gain more experience with the scientific method‚ experimental design‚ making predictions‚ critical analysis of results‚ and interpretation of your results. II. Introduction Human skeletal muscle consists of hundreds of individual
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length-tension relationships represent an important part in the function of skeletal muscle. When skeletal muscle is stimulated‚ passive tissue rapidly changes into dynamic tissue which can produce force. Furthermore‚ during this process‚ the length of muscle may decrease‚ increase‚ or remain the same. Moreover‚ the amount of power a muscle can produce depends on its length‚ velocity and stimulation Powers & Howley (2015). Muscle velocity and stimulation are normally in a constant when creating a length-tension
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Cheat Sheet for Test 3 What is stress? Any force that pushes the body out of optimum homeostatic conditions Stressors include Digesting food‚ exercising‚ waking after a long sleep Walking outdoors after being indoors Impending happy event such as a wedding or party‚ falling in love Arguments ‚ over work‚ exams The General Adaptation Syndrome is A predictable set of behavioral
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ACTIVITY 6: The Skeletal Muscle Length-Tension Relationship 33. In a force-length graph‚ a. the muscle length is the independent variable. b. the amount of force generated is the dependent variable. c. both active and passive forces must be considered. d. All the above are correct. correct answer 34. According to your lab manual‚ the protein titin is the primary cause of _________ __________. Passive Force 35. In this lab simulation‚ the muscle length of _______
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Physiology of fitness Acute exercise lasts for the length of a training session. During this time our bodies respond to the exercise and physical stress of the physical activity in lots of different ways. These are called acute responses. Acute responses immediate responses to exercise‚ such as an increase in body temperature and heart rate. Musculoskeletal response The musculoskeletal system allows and enables the body to move through a system of muscles‚ bones‚ tendons‚ cartilage and
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Activity 1 1. Size and concentration of the solute 2. It was too large to pass‚ as predicted 3. I predicted that the glucose would diffuse since it is small enough but the albumin is much too large to pass through the membrane. The experiment produced this result. Activity 2 1. Neither way requires ATP but facilitated diffusion requires carrier protein molecules for diffusion to occur. 2. By increasing the number of carriers more glucose can pass at a time increasing the rate‚
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Lab #3: Isotonic contraction and the effect of load on skeletal muscles Abstract The job of the motor nervous system is to control certain elements in muscles simultaneously to ultimately produce movement. Movement of the body is the result of specialized cells directly associated with skeletal muscle. Skeletal muscles are voluntary muscle and must contract before movement can occur. We know the muscle team moving the arm is formed at the biceps and triceps. Biceps can bend the elbow‚ but
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Anaerobic Muscles Anatomy & Physiology I Embrey Parker South University Online Faculty: Mary Blasingham Week 6 Discussion Assignment 1 Evaluate the anatomical and physiological similarities and differences between skeletal‚ cardiac and smooth muscle. During
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ABSTRACT: Skeletal muscle is able to repair itself through regeneration. However‚ an injured muscle often does not fully recover its strength because complete muscle regeneration is hindered by the development of fibrosis. Biological approaches to improve muscle healing by enhancing muscle regeneration and reducing the formation of fibrosis are being investigated. Previously‚ we have determined that insulin-like growth factor–1 (IGF-1) can improve muscle regeneration in injured muscle. We also
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Anatomy and Physiology Web-quest mucles and bones We live in our bodies. It is important that we understand how our bodies work so that we will be able to take good care of them while we are here on Earth in these spectacular containers!! Your body is covered by the largest organ and is supported within by foundation‚ your skeletal system. All your body systems have to work together in order to keep you alive and well. You will be exploring then parts of your body by using various web resources
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