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Chicken Wing Lab Preview • The chicken wing is very similar to the human arm • There are several different tissues that make up the organs of the chicken wing/human arm • Each of these tissues serves a special purpose in the skeletal and muscular organ systems Muscles • Flexors – Muscles that flex (bend inwards) the joint – Ex. Biceps • Extensors – Muscles that extend (straighten) the joint – Ex. Triceps • Important note: – No matter which direction (flexor or extensor), muscles always contract (get shorter) when activated – It is the interaction of muscles with bones that change the direction in which the body moves Tendons • Connective tissue that joins a muscle to a bone • Necessary for a muscle to pull on a bone to create motion • Determines if a muscle will work as a flexor or an extensor Ligaments • Connective tissue that joins a bone to a bone • Necessary for bones to join together to form a joint • Allows for flexibility of the joint under stress – But move the bones too far and they will tear! Cartilage • Connective tissue that provides a layer of cushioning between bones • Prevents bones from rubbing together and eroding each other Chicken Wing Dissection
