SPAGHETTI MUSCLE – ANATOMY OF A MUSCLE MATERIALS: spaghetti, tape, markers, construction paper PROCEDURE: 1. Count out 5 thin (ACTIN) and 5 thick (MYOSIN) spaghetti noodles. Cut or break them to a length of 16 – cm. Group these together and have a partner draw lines around the bundle of spaghetti. These lines should be equal distance from each other (about 1.5 inches). These represent the ZLINES. You have just made one MYOFIBRIL. 2. Secure the myofibril with clear tape. 3. Make 3 more myofibrils of the same length. Group them together. This grouping makes a MUSCLE FIBER. Wrap your muscle fiber in yellow paper and tape closed. This represents the ENDOMYSIUM. 4. Make 3 more muscle fibers with a length of 9 cm. Group all four muscle fibers together and wrap them with a sheet of green paper and tape closed. This grouping represents the MUSCLE FASCICLE. The green paper represents the PERIMYSIUM. 5. Make two more muscle fascicles with a length of only 7 cm this time. 6. Cut three thin strips of blue paper and three thin strips of red paper, with a length of 7 cm. Fold the strips into long tubes, about the size of the muscle fibers. These strips represent the VEINS and ARTERIES. 7. Group the three fascicles, veins, and arteries together. Wrap them together with pink paper and tape the paper closed. This grouping represents the MUSCLE. The pink paper represents the EPIMYSIUM. SPAGHETTI MUSCLE – ANATOMY OF A MUSCLE MATERIALS: thin spaghetti, thick spaghetti, plastic wrap, markers, construction paper PROCEDURE: 1. Count out 5 thin (ACTIN) and 5 thick (MYOSIN) spaghetti noodles. Cut or break them to a length of 16 – cm. Group these together and have a partner draw lines around the bundle of spaghetti. These lines should be equal distance from each other (about 1.5 inches). These represent the ZLINES. You have just made one MYOFIBRIL. 2. Secure the myofibril with clear tape. 3. Make 3 more myofibrils of the same length. Group them together. This grouping makes a MUSCLE FIBER. Wrap your muscle fiber in yellow paper and tape closed. This represents the ENDOMYSIUM. 4. Make 3 more muscle fibers with a length of 9 cm. Group all four muscle fibers together and wrap them with a sheet of green paper and tape closed. This grouping represents the MUSCLE FASCICLE. The green paper represents the PERIMYSIUM. 5. Make two more muscle fascicles with a length of only 7 cm this time. 6. Cut three thin strips of blue paper and three thin strips of red paper, with a length of 7 cm. Fold the strips into long tubes, about the size of the muscle fibers. These strips represent the VEINS and ARTERIES. 7. Group the three fascicles, veins, and arteries together. Wrap them together with pink paper and tape the paper closed. This grouping represents the MUSCLE. The pink paper represents the EPIMYSIUM.