PPT-Muscular tissue Muscle is a

soft tissue found in most animals Muscle cells contain protein filaments of actin and myosin that slide past one another producing a contraction that changes both the length and the shape of the cell Muscles function to produce force and . More than 600 muscles in our bodies (about 650). Muscles make up approximately half of the human body’s weight. The human heart will beat . about 40 million times a year. , and . a person's heart will beat approximately 2.5 billion times by the time of their 70th birthday.. What it is…. Muscular Dystrophy is a family of hereditary disease that cause progressive and steady muscle weakening.. Duchenne. and Becker muscular dystrophy, (which are just 2 forms of MD) alone affect approximately 1 in every 3,500 to 5,000 boys.. Muscular . Tissue. Lecture slides prepared by Curtis DeFriez, Weber State University. Like nervous tissue, muscles are excitable or "irritable”. they have the ability to respond to a stimulus. Unlike nerves, however, muscles are also:. Muscular . System Functions:. Muscle Tissue Can Contract (shorten) and Relax (lengthen). This causes mobility and provides support.. Allow for movement of:. skeleton – muscles are connected to bones. http://glencoe.mcgraw-hill.com/sites/007874184x/student_view0/brainpop_movies.html#. Organs and Functions . Because of the way we usually see bones, it’s easy to think of them as dry and lifeless. . The Muscular Tissues. General characteristics of the muscular tissues:. The . cells. of the muscular tissues are elongated elements, named. . muscle fibers. .. The . cytoplasm. of the muscle fiber, the . As it contracts it . -causes movement. -maintains posture. -stabilizes joints. -and generates heat. . Muscle Types. Skeletal muscle (voluntary). muscle attached to the skeleton. cells are long, striated, and multinucleate. Learning Objectives:. Describe the functions of the muscular system. Identify structures of the muscular system and the function of each. Describe methods of assessment of the muscular system. Describe disorders of the muscular system. group of inherited . ___________________________________ diseases . muscles enlarge due to . _______________________________ tissue . deposits, . but muscle fibers . _. Caused by a lack of the . cytoplasmic. Muscle cells cannot . partially. contract. They act on the ‘all or none’ principle. They either contract 100% or do not contract at all.. You cannot turn fat into muscle by exercising.. You cannot ‘spot reduce’ i.e. you cannot get rid of your spare tire by doing sit-ups.. Hierarchy of the Body. Smallest unit = atom. . Grouped atoms = molecules. Multiple molecules = organelles. Organelles = system of cells. Cell cluster = tissues/organs. Organ systems = organism . Organ System. :. Skeletal . Muscle . Tissue. Cardiac Muscle . Tissue. Smooth Muscle Tissue. Skeletal Muscle Tissue. AKA Striated Muscles:. These are voluntary muscles. Consciously controlled.. They are composed of distinctive light and dark bands. made up of over 600 different muscles. consists of two different . types of tissue: . connective tissue. muscle tissue. What is the Muscular System?. What are the Functions of the Muscular System?. To create movement by working with bones, ligaments, and tendons.. DIRECTOR. SCHOOL OF HEALTH SCIENCES, CSJMU. MUSCULAR STRUCTURE. Mainly three types of fibres are found in human skeletal muscles. These are:. Type I or Slow twitch oxidative fibres. Type II a or Intermediate fibres or fast twitch red fibres or fast twitch oxidative glycolytic fibres.