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MUSCULAR SYSTEM

MUSCULAR SYSTEM. TUESDAY, OCTOBER 18, 2011 COACH WILLIAMS. What is MUSCLE?. Tissue that makes the body move. Network of muscles include: Voluntary muscles – muscles that must be told to move Involuntary muscles – muscles that move on their own. How many muscles do we have?.

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MUSCULAR SYSTEM

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  1. MUSCULAR SYSTEM TUESDAY, OCTOBER 18, 2011 COACH WILLIAMS

  2. What is MUSCLE? • Tissue that makes the body move. • Network of muscles include: • Voluntary muscles – muscles that must be told to move • Involuntary muscles – muscles that move on their own

  3. How many muscles do we have? • The human body contains more than 650 muscles. • They are all made of the same material which is a type of elastic.

  4. Types of Muscle Tissues • Cardiac • Skeletal • Smooth

  5. Cardiac Muscle • Found only in the heart (makes up the heart) • It is a “twitch” muscle; it only performs short single contractions • WHAT TYPE OF MUSCLE DO YOU THINK THE CARDIAC MUSCLE IS? INVOLUNTARY OR VOLUNTARY

  6. Skeletal muscle • Muscles that show you how strong you are • aka – “striated muscle” – the light and dark parts of muscle fibers make them look striped • Skeletal muscles are held to the bones by tendons (cords made of tough tissue) • Skeletal muscles work with your bones to give your body power and strength • This combination is referred to as “musculoskeletal system”. • VOLUNTARY OR INVOLUNTARY?

  7. MAJOR SKELETAL MUSCLES • DELTOID MUSCLE (SHOULDER) • PECTORALS (BOTH SIDES OF UPPER CHEST) • ABDOMINALS (ABS) • BICEPS • QUADRICEPS (QUADS) • GLUTEUS MAXIMUS

  8. Smooth muscle • Your brain and body tell these muscles what to do • Smooth muscles are at work all over your body • Stomach and digestive system – they contract (tighten up) to allow food to go through the body • Bladder – when relaxed (hold in urine); when contract (let it out or “tinkle”) INVOLUNTARY OR VOLUNTARY?

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