Griffin,+Austen,+Emily+Script+Period+7+dieseas+muscular

Format: Voice thread By: Emily, Austin, and Griffin Period 7**
 * Script for Disease Project

Emily: Welcome to Inside Jimmy, and I'm Emily broadcasting from inside Jimmy. Today's topic: muscles. There are three types of muscles, Skeletal, Smooth, and Cardiac muscle (circle different muscle types). Muscles are things we need to survive, without them your heart could not pump blood, your stomach could not digest food, and you would not be able to move at all. Muscles can only contract, so they have to work in pairs. We'll begin with skeletal muscle. Right now I am in the arm's skeletal muscle. Skeletal muscle is usually attached to tendons, and are used to create movement in the bones. (Change to next picture) This is what muscle looks like on a bone. There is the muscle, the tendon, which connects the muscle to the bone and the bone itself. To show you how skeletal muscle works, let see what happens when Jimmy flex's his arm muscle, throwing a baseball. Jimmy lifts his arm up in a right angle, flexing his bicep, and allowing his triceps to return to it's normal length, then he throw's the ball. What happens on the follow through is: his triceps contract, and his biceps return to normal length. This process happens almost continually throughout your body. That is all about skeletal muscle, now to Austin in the heart. Austin?

(Emily goes to Austin)

Austin: Thank you Emily. I'm here in the only cardiac muscle in Jimbo's body. The Heart! It's close to being like those skeletal muscles but is different at the same time.It is banded or striated like skeletal muscles but is involuntary like the smooth muscles, we'll talk about them in a moment. Here in the heart we never get tired we just keep going and going and going some more.Without us Jim would cease to exist. Now we go to my good friend Griff in the smooth muscle in the stomach.

(Austin goes to Griffin) Griffin: Thanks Austin, I'm here is the stomach, Jimmy is digesting the peanut butter and jelly sandwich he had for lunch right now and the smooth muscles are really contracting! Smooth muscles are muscles that work involuntarily, in other words, they work without you telling them to. Smooth muscle cells form in sheet's along the walls of the internal organs, such as the stomach, intestine, bladder, and blood vessels, but not the heart. They are spindle shaped, straighten, with one nuclei. Smooth muscle cells have and area around the nucleus filled with endoplasmic reticulum and ton's of mitochondria, that produce all the ATP needed for contracting. Now we go back to Emily.

(Griffin goes to Emily)

Emily: Well I think that's all for now. See ya next time on Inside Jimmy.

