The Muscular System

BY Olivia Collings

There are over 600 muscles in the adult body!

Chicken Wing Dissection

Identify the upper and lower wing, along with the wingtip.

1. What structures do these correspond to in humans? Upper arm (humerus), lower arm (radius + ulna), hand.

Identify the muscles in the upper wing. Try tugging on each of these.

2. What happens when you tug on these muscles? The wing will extend or bend depending on what muscle you pull.

3. What muscles do they correspond to in humans? The bicep and tricep

4. Which muscle is an extensor? To make the arm extend you must pull the chicken's equivalent of our tricep.

5. Which muscle is a flexor? To make the arm bend, you must pull the chicken's equivalent of our bicep

Identify the muscles in the lower wing. Try tugging on these

6. What happens when you tug on these muscles When pulling on these muscles the wingtip either bends or extends

The muscles in the chicken wing correlate with our Biceps and Triceps

Cut away some of the muscle tissue. Find the tissue that connects muscle to bone

7. What is this muscle called? Tendons

8. Describe what is looks like? A tough, white tissue, at the ends of muscles. Connecting them to the bones

Observe the elbow joint:

9. What is the tissue that connects the bones at this joint called? Ligaments

10. What kind of a joint is this? A hinge joint, forbidding the bones to pass 180 degrees

11. What kind of joint connects the wing at the shoulder? A ball-in-socket joint, allowing a full 360 degrees of movement

12. Describe the cartilage that lines the joint: A tough, white, smooth and slippery substance to cushion the joint and reduce impact. There was about 1/2 centimetre (5mm) around the bone.

Continue to cut away all of the muscle, to expose just the bones

13. Name the bones found in the chicken wing: Humerus, Radius and Ulna

The bones in the wing correlate with our Humerus, Radius and Ulna

Conclusion - How the muscular system links with the skeletal system

The skeletal and muscular systems work together to help us move, give structure and provide protection for our organs. Tendons attach the muslce to the bone and ligaments attach the bones to one another.