KIN 2500 -- MUSCLES O: origin I: insertion A: action N: Lever: rigid structure that moves around a fixed point fulcrum * Effort: causes the movement; force that is due to the muscular contraction; you only get motion when the effort that is applied at the insertion point exceeds the load * Load/Resistance: opposes that movement * 1st class levers: not very common; fulcrum is fixed between effort and load * 2nd class levers: standing on tip toes; fairly uncommon; the load is
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Preventing Muscle Cramps Caused By Dehydration John Doe GEN/200 April 18‚ 2011 John Deere Preventing Muscle Cramps Caused By Dehydration Muscles cramps and spasms can be annoying. If the body is not taking in enough daily fluids it can cause major health issues in a short amount of time. Fluids as well as other contributing factors such as age‚ has a large influence on muscles. People can often suffer from muscle weakness and cramping from dehydration. Exercising can also reduce
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EXERCISE 2: Skeletal Muscle Physiology Student Name: Student ID#: Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise2_JohnSmith.doc. Please make sure that your answers are typed in RED. (You may delete these instructions
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Muscle Cell at rest: As the muscle cell is at rest it has a resting potential of -90mV. The K+ is all located inside the cell‚ the Na+ is located outside of the cell and the Ca2+ is located inside the sarcoplasmic reticulum. All leak channels and pumps are closed at this point. Muscle Cell stimulated by Acetylcholine: A motor neuron releases Acetylcholine which diffuses toward the muscle cell across the neuromuscular junction. As the Acetylcholine binds to a receptor on the muscle
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Serratus Anterior 1. ABDUCTION of Shoulder Girdle Joint 2. UPWARD ROTATION of Shoulder Girdle Joint Pectoralis Minor 1. ABDUCTION of Shoulder Girdle Joint Pectoralis Major 1. FLEXION of Shoulder Joint 2. HORIZONTAL FLEXION of Shoulder Joint 3. MEDIAL (INTERNAL) ROTATION of Shoulder Joint Rhomboid Minor 1. ADDUCTION of Shoulder Girdle Joint 2. DOWNWARD ROTATION of Shoulder Girdle Joint Rhomboid Major 1. ADDUCTION of Shoulder Girdle Joint 2. DOWNWARD ROTATION of Shoulder Girdle
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Identify the muscles in the anterior compartment of the leg The leg is divided into three compartments by tough fasciae to hold the muscles and proper functioning of these muscles during their contraction. These compartments also contain nerves and vessels. The three main compartments are anterior (extensor)‚ lateral (fibular) and posterior (flexor). The anterior compartment (Extensor compartment) contains muscles which are used for extension (dorsiflexion) of the foot as these muscles have origin
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Experimental Gerontology 45 (2010) 81–90 Contents lists available at ScienceDirect Experimental Gerontology journal homepage: www.elsevier.com/locate/expgero Review Aging and the force–velocity relationship of muscles Isaac Selva Raj a‚*‚ Stephen R. Bird a‚ Anthony J. Shield b a b Royal Melbourne Institute of Technology‚ Australia School of Human Movement Studies‚ Faculty of Health‚ Queensland University of Technology‚ Kelvin Grove Campus‚ Victoria Park Road‚ Kelvin Grove‚ Queensland
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Activity 1 – The Muscle Twitch and Latent 1) Define the terms skeletal muscle fiber‚ motor unit‚ skeletal muscle twitch‚ electrical stimulus‚ and latent period. Skeletal Muscle Fiber: Skeletal muscle cells that are composed of hundreds to thousands of individual cells that produce muscle tension. These fibers are what move our bodies and generate muscle tension/force that enables us to have manual dexterity. Motor unit: consists of one motor neuron and all of the skeletal muscle fibers that it
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Reading is the act of understanding‚ deciphering‚ comprehending or interpreting everything that is written down by any means whether it is handwritten‚ digital or electronic. Reading can be from checking simple text messages to comprehending extremely sophisticated poems. The simple act of reading can be associated with newspapers‚ books‚ dates‚ instructions‚ self-written work‚ expressions‚ information on a computer or websites‚ essays‚ poems‚ and just about everything that is readable. Reading requires
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Phillips ENC 1102 02/16/15 My Love for Reading The first books I ever started reading were Winnie the Pooh and Dr Suess books. When I was young my parents were really good about getting me started with reading different books and for a long time I loved reading‚ as long as it was books I got to choose and enjoyed reading myself. Once I got further along in school and they started mandating what books we had to read I got to the point where I didn’t find reading enjoyable any longer. I didn’t like most
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