Skeletal System- Functions: 1. Support- To give our bodies structure and form 2. Protection- Protect vital internal organs‚ e.g. Cranium or skull protects the brain 3. Movement- Works with muscles to allow movement 4. Mineral Storage- Stores calcium in our bones 5. Blood Cell Production- Red Blood Cells carry oxygen‚ white blood cells fight off viruses 6. Storage of Energy- Stores extra energy incase you run out * Ligaments- Are a fibrous band of connective tissue that
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+Amendments for D2: Skeletal muscles allows for many different types of muscle contractions such as eccentric‚ concentric‚ isometric and isokinetic. These muscles are voluntary and the contractions produced have a huge impact on Wilkinson’s game. For example when he is striking a ball his quadricep contracts concentrically to produce force onto the ball. The more powerful the muscle the bigger the contraction‚ therefore if Johnny improves the strength of his quadriceps his kicking distance could
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1 . Describe the Major bones‚ muscles‚joints and joint actions used to perform this movement skill and how they influence the way the body moves. The overarm throw is a skill frequently used in a wide range of sports such as cricket‚softball and baseball. The action is also used in athletic activities such as javelin‚ with the overhead serve and smash in tennis‚ volleyball and badminton and passing a netball and basketball.An overarm throw is the action of the arm swinging backwards then upwards
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Primary Source Review #1 Title: Age-associated decreased activities of mitochondrial electron transport chain complexes in heart and skeletal muscle: role of L-carnitine Authors: Kumaran S.‚ Subathra M.‚ Balu M.‚ Panneerselvam C. Journal: Chemo-Biological Interactions Vol. 148 Pgs. 11-18 Date: 2004 Instructions: You may work together on this assignment and turn it in as a group or individually. You will need to use resources such as the internet in addition to your textbook and the article
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LAB 9: Skeletal Muscle Physiology Electrical Stimulation 1. Complete the following statements by filling in your answers on the appropriate lines below. A motor unit consists of a ___1___ and all the ___2___ it innervates. Whole muscle contraction is a(n) ___3___ response. A ___4___ is the response of a muscle to a single‚ brief threshold stimulus. When the frequency of stimulation is so high that the muscle tracing shows fused peaks‚ ___5___ has been achieved. ___6___
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(shoulder) 8.8 (a) Compare and Contrast rheumatoid arthritis to osteoarthritis. Include causes and physiology. Both Inflammation of joints Damage to articular cartilage Different: Rheumatoid General term that indicates pain & stiffness affecting muscles‚ bones‚ tendons‚ & joints Osteoarthritis Generally effects age 60 and older Cumulative effects of wear and tear at the joint surface‚ or from genetic factors affecting collagen filaments. 9.2 (b) Describe the structural components of a sarcomere
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Weights programme – The programme designed has been designed to target all muscle groups effectively using a wide range of exercises. Exercises for the pectorals such as the bench press‚ exercises for the latissimus dorsi such as the lat pulldown‚ etc. I have created a programme consisting of 6 exercises. The exercises are bench press‚ lat pulldown‚ leg press‚ dumbbell shoulder press and bicep curl and tricep pushdown. The first exercise is bench press. This exercise can either be performed using
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extensibility‚ and elasticity. State why each of these properties is necessary for muscle function. a. Responsiveness- is a property of all living cells- Muscle and nerve cells have developed this property to the highest degree. When stimulated by chemical signals‚ stretch‚ and other stimuli‚ muscle cells respond with electrical changes across the plasma membrane. b. Conductivity- Stimulation of a muscle cell produces more than a local effect- The local electrical change triggers a wave
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types and major muscle groups Functions Body movement (voluntary control) Adequate posture Essential bodily functions (involuntary control) Types Smooth- digestive system‚ walks of vital organs and involuntary Cardiac- muscle of the heart‚ involuntary Skeletal (striated)- voluntary movements‚ development and maintenance of good posture Involuntary – no conscious control of the muscle (cannot be manipulated by you) Voluntary- conscious control of the muscle
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Chapter 9 Reading in Chapter 9: Pages 276-285; 289-307 1. Name the 3 main types of muscle tissue‚ and the key characteristics of each type. 2. List and briefly describe the characteristics of all muscle tissue. 3. List and briefly describe the functions performed by muscle tissue. 4. What is another name for a skeletal muscle cell? 5. Name and briefly describe each level of structural organization of muscle tissue‚ starting with the cellular level progressing to the organ level.
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