body how to react. the brain as a central computer that controls all bodily functions‚ then the nervous system is like a network that relays messages back and forth from the brain to different parts of the body. It does this through the spinal cord‚ which runs from the brain down through the back and contains nerves that branch out to every organ
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ASSIGMENT- THE MUSCULAR SYSTEM Q9.Explain how the muscle produces movement and different types of contraction.(M3) Sliding filament theory. Each muscle fibre is made up of smaller fibres called myofibrils. These contain even smaller structures called actin which is a thin‚ contractile protein filament‚ containing ’active’ or ’binding’ sites and myosin filaments which are a thick‚ contractile protein filament‚ with Myosin Heads. These filaments slide in and out between each other to form a muscle contractions
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Introduction: Skeletal muscle cells are specialized cells that contain multinucleated muscle fibers called myocytes. These myocytes contain thicker fibers that facilitate the release of calcium‚ the generation of an action potential within the sarcolemma‚ and the subsequent production of a muscle contraction. Muscle contractions are a direct byproduct of motor unit recruitment‚ and for this lab we can examine these effects with aid of a finger pulse transducer and a bar stimulus electrode. The
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The musculoskeletal system 1.3 The muscular system: functions‚ 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
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Anatomy & Physiology in Sport Assignment 1 of 3 Muscular system Muscles Skeletal‚ cardiac and smooth are the three main types of muscle in the body. Skeletal muscle is a voluntary muscle‚ this means that it is under control by the somatic nervous system. When viewed under a microscope the appearance of this muscle is striped/ striated. “The primary function of the skeletal muscle is to produce fine movements to keep you alive. Skeletal muscle also contract as a reflex to a stimulus.”- (http://www
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The Muscular System: Contraction of Motor Units 1. Define a motor neuron:_____A single nerve cell that branches from the brain or the spinal cord to a muscle or a gland. 2. Define a motor unit: ___A motor neuron and all of the muscle fibers it stimulates. 3. The synapse between a motor neuron and the muscle it innervates is called a ____neuromuscular junction_______. 4. The stimulation of additional motor units will increase the strength of the contraction. This process is called
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Muscular system is the system of Human Body that provides motor power for all movements of body parts. Muscular system is composed of special tissue called muscular tissue. Muscles have the ability to contract actvely to provide the force for movements of body parts. Muscular system is an important system of human body because without it‚ life will completely stop. Muscles produce not only those movements that are under the control of our will and that we can see and feel‚ but also those movements
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differences in the structure and function of the three types of muscle tissue and where they are found in the body: Skeletal – single‚ very long‚ cylindrical‚ multinucleated cells with very obvious striations‚ voluntary via nervous system controls‚ attach to bones for movement‚ slow to fast contractions Cardiac – branching chains of cells‚ uninucleated‚ striated‚ involuntary‚ found only in the heart‚ slow rhythmic contractions Smooth – single‚ fusiform‚ uninucleated‚ no striations‚ involuntary
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THE MUSCULAR SYSTEM DocPoks Pangan M.D Natural Science • The bones‚ muscles and joints together form an integrated system called the Musculoskeletal System • Myology is the scientific study of muscles • Muscular system is an organ system consisting of skeletal‚ smooth and cardiac muscles • Orthopedics is the branch of medical science concerned with the prevention or correction of the disorders of the musculoskeletal system ANTERIOR VIEW POSTERIOR VIEW FUNCTIONS OF THE MUSCLES • • • • Movement
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Muscle System Human Biology The human body is covered by muscles‚ made up of more than 650 of them. The purpose of the muscular system is for the body to move‚ maintain posture‚ and produce heat. There are three different types of muscles tissues; cardiac‚ smooth‚ and skeletal. There are also two types of muscles are in the body; voluntary and involuntary. The ones which we can move are the voluntary muscles; the ones which move on their own‚ like the heart‚ are involuntary muscles. When muscles
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