Chapter 4 Study Guide Bio 169 • Individual body cells are specialized -Each type performs specific functions that help maintain homeostasis • Tissues are groups of cells that are similar in structure and perform a common function • Histology – study of tissues PRIMARY TISSUE TYPES: 1) Epithelial Tissue (or epithelium) is a sheet of cells that covers a body surface or lines a body cavity Forms boundaries Occurs in the body as covering and lining epithelium and glandular epithelium
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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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connective tissue in a muscle. Epimysium (sheet of connective tissue that covers a muscle as a whole)‚ endomysium (delicate connective tissue membrane covering the highly specialized skeletal muscle fibers) ‚( perimysium (tough connective tissue surrounding fascicles) 2. Myofibrils are composed primarily of two protein filaments called _____________actin__________ and ___myosin_______________________. 3. What is a motor unit? Functional unit composed of a single motor neuron with the muscle cells
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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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Muscular Dystrophy (APA style) Abstract Overview Muscular dystrophy‚ MD‚ is a group of inherited muscle diseases that weaken the muscles that help the body move (Clark‚ 1995). There are nine major forms of MD. These are Myotonic‚ Duchenne‚ Becker‚ Limb-girdle‚ Facioscapulohumeral‚ Congenital‚ Oculopharyngeal‚ Distal‚ and Emery-Dreifuss (Wikipedia contributors‚ 2009). The type of disease is based on a few factors which are as follows: when in a person’s life MD appears‚ the degree to which
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Muscular Dystrophy Muscular Dystrophy is a general term for a number of hereditary‚ degenerative disorders affecting skeletal muscles‚ and often other organs. It is a genetic disease that causes constant degeneration of the muscles. There are over 30 kinds of Muscular Dystrophy. Some forms of Muscular Dystrophy affect involuntary organs like the heart. This muscular disease can be seen in during infancy or may not be known until much later on in life. Muscular Dystrophy is different for each person
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Similarities and 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
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Muscular dystrophy GCU SPE 358 With Duchenne muscular dystrophy‚ individuals experience a decline in dexterity and gross motor skills as the condition progresses. As muscles atrophy‚ compensation for lack of strength and dexterity may include modified handles or grips and adapted utensils and the use of a motorized wheelchair. (Heller‚ Forney‚ Alberto‚ Best‚ & Schwartzman‚ 2009.) The individual and instructor will work with the special education team and therapists for compensatory positioning
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what is muscular dystrophy The muscular dystrophies are a group a group of genetic diseases characterized by progressive weakness and degeneration of the skeletal or voluntary muscles which control movement. The muscles of the heart and some other involuntary muscles are also affected in some forms of muscular dystrophy‚ and a few forms involve other organs as well. History of muscular dystrophy Children’s Hospital Boston has a long history of conducting innovative research on muscular dystrophy
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Chapter 6 Osseous Tissue and Bone Structure 1. classifications of bones by shape (1) long bone - long and thin - arm and forearm‚ thigh (femur) and legs‚ palms‚ soles‚ fingers‚ toes (2) flat bone - thin with parallel surfaces - skull‚ sternum‚ rib‚ scapulae (3) sutural bone (Wormian bones) - small‚ irregular bones - between flat bones of the skull (4) irregular bone - complex shapes with short‚ flat‚ notched‚ or ridged surfaces - spinal vertebrae‚ the bones of the pelvis‚ and several
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