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Copy of Chicken Wing Lab

Chicken Wing diagram and explanation for Mrs. Robinson's class!

Yusuf Hassan

on 8 April 2013

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Transcript of Copy of Chicken Wing Lab

By Tanya Jayaram Chicken Wing Lab: Visual and Explanations Before... The chicken wing is clean, has taut skin and is pale pink. ...and After Our dissected chicken wing! Bones and Muscle Pointed out is the shoulder bone. The gooey stuff below it is the cartilage. How do muscles work in pairs to provide movement? What connective tissues help? When the flexor muscle, the biceps, contracts, it pulls on the tendons (connects muscle to bone), bringing the radius and ulna (forearm bones) forward. The extensor muscle, the triceps, relax. The arm bends at the elbow joint. How do the skeletal and muscular systems work together? The skeletal and muscular systems work together to accomplish movement. The skeletal frame supports the muscles. Tendons attach muscles to bones. When a muscle contracts, the tendons pull on the bone, causing it to move. The ligaments that connect bone to bone help in this process, by maintaining the stability of the bones. The cartilage cushions the joints making the movement much smoother. Tendon (cut up) Cartilage Blood (from blood vessels) Shoulder Bone Muscle Skin (the remains of it) Ligament Li Flexor Extensor When the extensor muscle, the triceps, contracts, the biceps relax and the radius and ulna extend outward. The arm straightens out. Diagram of Chicken Wing An X-ray of the Chicken Wing Radius Ulna Elbow Joint Carpal Joint Phalanges Humerus Shoulder Joint Muscles and Bone on the X-ray* Skin Biceps Group Skeletal Muscle Ligament *The triceps muscle is underneath the biceps and cannot be seen in this photograph. Pointed out is the skeletal muscle in the forearm. Underneath the muscle (not actually seen) are the radius and the ulna. The muscles work in pairs. When one contracts, the other relaxes. For example, when the biceps contract or flexes, the triceps relax. This action bends the elbow, bringing the forearm closer to the body. Hence the biceps are acting as a flexor muscle. The tendons that connect the muscle to the bone helps pull the bone in. Shoulder Joint Tendons Elbow Joint Phalanges Skeletal Muscle Inquiry Question: Do chickens have different bones than humans? Radius Ulna Elbow Joint Carpal Joint Phalanges Humerus Metacarpals Shoulder Joint The chicken wing has a similar bone structure as the human arm. The upper arm extending from the shoulder joint (ball-and-socket) to the elbow is the humerus, and the two bones from the elbow from the wrist are the radius (thinner) and ulna (thicker). The chicken wing also has metacarpals and phalanges, just like the human hand. The alula on the chicken wing represents the thumb on a human hand. Just like the human bone joints, cartilage tissue is present and tendons and ligaments are visible. Alula Metacarpals Alula Thanks for watching! :D < The picture to the left* shows a straightened chicken wing. This happens when the triceps contract and the biceps relax. This action extends or moves the forearm away from the body. Hence the triceps are acting as an extensor muscle. *The chicken wing is upside down.
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