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Caroline: Hello I am Caroline and you're watching the Wildcat Evening News! Our first topic today is the muscular system! Our team has researched and interviewed many experts on the muscular system and we are ready to tell you what you need to know! Now, here's Tony LIVE in the bicep! Just one of the 650 muscles in the body.

Tony: I'm here in the bicep of a 32 year old man, you can see the muscle tissue behind me, it's pretty tense, so he was probably working out a little while ago. The bicep is a skeletal muscle, Caroline, could you tell us a little more about the types of muscles? I'm sure that our viewers are interested.

Caroline: Of course! The skeletal muscle is striated, AKA, it looks banded. The skeletal muscles are attached to the bones by tendons and they provide the force for bones to move. Also, skeletal muscles are voluntary. This means that you have conscious control over them. Some other examples of skeletal muscles are the triceps and deltoids. And, because muscles can contract, not extend, skeletal muscles work in pairs. When one muscle contracts, the other relaxes to its normal state of being. Skeletal muscles make up about 40 percent of adults' body weight too! Nearly all movement in the body is a result of muscle contraction. Muscles always make small adjustments to hold joints the body still. Especially joints in the elbow and knee cap. And not to mention, nearly 85 percent of heat in the human body is produced by muscle contraction! The other types of muscle tissues are cardiac and smooth. Tony, would you like to tell us a little about those?

Tony: Sure. I have now moved to the heart, this is cardiac muscle behind me. Cardiac muscle is found only in the wall of the heart, or it's scientific name mydocardium. Like smooth muscles they are involuntary muscles, meaning that they do their without conscious control of them. They do many things for you, such as they drive O2, glucose, amino acids, vitamins, drugs & water to tissues around the body through blood. Another thing they do, is they keep the body warm, by pumping blood around the body.They are striated, or banded like the skeletal muscles, they contract repeatedly and never tire. Those are heartbeats, as you know well enough. All the cardiac muscles are attached to each other, not to bones like the skeletal muscles.

Caroline: The last type of muscle tissue is the smooth muscle. Examples of this are the stomach, blood vessels, arteries, and many other internal organs. Like cardiac muscles, smooth muscles are involuntary. Smooth muscles are not striated. It is the only muscle tissue that isn't. Smooth muscles react more slowly than skeletal muscles. They also tire more slowly than smooth muscles.

Tony: That's right, as you can see now, I have moved one final time to the stomach, the stomach is the most commonly known smooth muscle. This muscle is not striated like the skeletal or the cardiac, but smooth, like its name. (screen starts to shift and rumble) uh oh, i think that he has a little indigestion, i better get out of here! (screen goes blank and static sounds)

Caroline: Tony? TOOOONNNNNNYYYY? Okay we'll check up with him tomorrow night...But now it's time to go!

(Theme song plays)

Tony: hey i'm back! what did i miss? the shows over, what! i though i got here fast!

Caroline: Well it just wasn't fast enough! But...It isn't a real goodbye without Tony. So...

(Theme song plays again)

Together: Goodbye!!!!