How Muscle and Tissue Work

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This lab session was completed in order to understand how muscles and tissue work together in our bodies to make daily activities possible. Each pair of students observed three types of muscle (skeletal, smooth, and cardiac) under the microscope. As one observed the muscle through the eyepiece, they drew what they saw in the field of view in the results section for later observation. After they observed the muscles, they took bone and cartilage slides and observed it under the microscope as well. The bone slide that was used was a part of ground bone while the cartilage that was used was elastic cartilage, fibrous cartilage, and hyaline cartilage. As the previous tissues, these were also draw and labeled in the results section to be later observed and able to be understood how our bodies work together and help us do what we want to do.

II- Introduction:

In order for vertebrates to be supported and move, certain tissues are involved which include muscle, bone, and cartilage. When the muscles contract they produce motion as well as muscle moving radiates heat to help control our body temperature; therefore, there are three different types of muscle tissue: cardiac, skeletal, and smooth. Cardiac muscle is the muscle that is only found in the heart; hence, the prefix word “cardio” means “heart” in Greek (Miller, Levine. (2006). Pearson Prentice Hall. Biology.). This muscle appears to be striated, which means it has alternating light and dark bands (striations) which includes red and white fibers and contain proteins. These red fibers are high in oxygen and can be classified as slow oxidative, which means they have a slow twitch. The white fibers are in fact low in oxygen and are fast glycolidtic which means they have a fast twi...

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