found in animals: connective‚ muscle‚ nervous‚ and epithelial. We are going to go into muscle tissue. The cells of muscle tissues are called fibers. There are three types of muscle tissue and they are skeletal‚ cardiac‚ and smooth. All types can go though hypertrophy (enlargement or overgrowth of an organ or part of the body due to the increased size of the constituent cells). Muscle fibers contract due to the interaction of the contractile proteins‚ actin and myosin. Muscle contraction generates contractile
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In the subject hair and skin there’s a lot pf professions on that category. Such as dermatologist‚ Hair restoration and transplant surgeon‚ plastic surgeon‚ pediatric plastic surgeon‚ craniofacial surgeon‚ and dermatopathologist. A dermatologist is a specialist of the skin‚ A hair restorationist is a surgeon that stitches hair follicles back on the scalp‚ A transplant surgeon transplants donated organs in somebody who needs them‚ Plastic surgeon are medical doctors who specialize in remodeling and
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Essay: Diction and Tone in Poetry In the field of literature‚ authors use various forms of writing techniques to create diction and tone. One way that the author‚ Andrew Marvel‚ of “To His Coy Mistress” uses a unique way of diction to portray several styles of tone‚ in which they shift from one another‚ through stanza to stanza. His diction creates a variety of literary styles that most authors use as a way of conveying a personal message. This diction creates a multitude of imagery that the reader
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Muscle fatigue occurs when a muscle has a diminished ability to continue to produce force‚ usually occurring due to extensive use of those muscles‚ such as when performing extraneous activity. On a molecular level‚ there are a number of things that happen that prevent the muscle from performing more action‚ ultimately to prevent any damage from being afflicted on the muscles cells. One particular effect that most people are likely familiar
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Q1 Muscle contraction can be understood as the consequence of a process of transmission of action potentials from one neuron to another. A chemical called acetylcholine is the neurotransmitter released from the presynaptic neuron. As the postsynaptic cells on the muscle cell membrane receive the acetylcholine‚ the channels for the cations sodium and potassium are opened. These cations produce a net depolarization of the cell membrane and this electrical signal travels along the muscle fibers. Through
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Muscles attached to scapula: Levator scapulae origin is transverse processes of C1-C4‚ insertion at superior angle of scapula‚ it moves scapula and flexes neck. Pectoralis minor’s origin is ribs 3-5 and insertion at coracoid process of scapula‚ it depresses scapula and elevates ribs. Rhomboids Major and Rhomboids Minor’s origin at spinous processes T1-T4‚ insertion at medial border of scapula‚ they move scapula. Serratus anterior’s origin is at ribs 1-9‚ insertion is at medial border of scapula
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Skeletal Muscle 2013‚ 3:5 http://www.skeletalmusclejournal.com/content/3/1/5 Skeletal Muscle Open Access RESEARCH Canonical Wnt signaling induces BMP-4 to specify slow myofibrogenesis of fetal myoblasts Kazuki Kuroda1‚4‚ Shihuan Kuang1‚2‚ Makoto M Taketo3 and Michael A Rudnicki1* Abstract Background: The Wnts are secreted proteins that play important roles in skeletal myogenesis‚ muscle fiber type diversification‚ neuromuscular junction formation and muscle stem cell function. How Wnt proteins
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period and we can then give a relatively obscure ruler of Egypt a face. Explain the different techniques used in facial reconstructions. A bare skull is used as the basis of the reconstruction and from there‚ soft tissue is
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Aging Is a Natural Process Aging is a natural process that everyone is subjected to. As a matter of fact‚ the aging process started kicking in the moment we were born. However‚ its unsightly effects are only felt when we start hitting middle age. Despite this‚ knowing what triggers the unwanted effects of aging and being aware of the right products can actually help you easily slow down or give the illusion that you have halted the aging process before its effects actually get on your nerves. Many
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Muscle tissue Muscle tissue has a ability to relax and contrast and so bring about movement and mechanical work in various parts of the body. There are other movements in the body too which are necessary for the survival of the organism such as the heart beat and the movements of the alimentary canal. Muscles can be divided into three main groups according to their structure * Smooth muscle tissue. * Skeletal muscle tissue. * Cardiac (heart) muscle tissue.
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