1. Study the diagram of a chicken wing. Use the diagram to help you locate certain muscular and
skeletal structures.
2. Thorough washing of hands, countertop and instruments have to be done at the
end to prevent salmonella contamination.
3. Your teacher will give you a chicken wing. Rinse it well with cool water, dry it with paper towels, and
place it in a dissecting tray.
4. Examine the wing at the point where it was removed from the body. Depending on the way the wing
is cut, you might see cartilage and bone marrow.
5. Carefully extend the wing to find out how many major parts it has.
6. Using the scissors, cut down the middle of the skin, starting at the top end of the upper wing. Try not
to cut through the muscles below the skin. Do this by piercing the skin and then slipping the scissors
between the skin layer and the muscle. Cut until you reach the shoulder joint. (See figure 1, Cut 1.)
Only cut through the skin. CAUTION: Cut away from your body and your classmates.
7. Cut down the sides of the skin to make a T-shaped cut. Start at the first cut and cut away from it in
both directions. Peel the skin and cut to loosen it. (Note: the chicken skin can be very difficult to remove.
Take your time peeling it back so as not to damage the tissues underlying it.) (See Figure 2, Cut 2.)
8. Look for yellowish tissue clumped together beneath the skin. This is fat tissue, made of fat cells.
9. Examine the muscles, the bundles of pink tissue around the bones. Find the two groups of muscles in
the upper arm. Hold the arm down at the shoulder, and alternately pull on each muscle group. Observe
what happens on each muscle group. Observe what happens.
Show teacher that you did this. Teacher initials: _____________10. Find the two groups of muscles in the lower arm. Hold down the arm at the elbow, and alternately
pull on each muscle group.
11. Find the tendons--shiny white tissue at the ends of the muscles. Notice what parts the tendons
connect.
Show teacher that you did this. Teacher initials: _____________
12. Remove the muscles and tendons. Find the ligaments, the whitish ribbon like structures between
bones.
Show teacher that you did this. Teacher initials: _____________
CLEAN UP
Dispose the chicken parts according to your teacher's instructions. Wash your
hands with soap and water. Thoroughly wash the lab countertop with 409.
Thoroughly wash the scissors with hot soapy water. Set instruments on a clean
paper towel to dry.
Post Lab activities
1. Color all of the muscles in the wing RED.
2. Color all of the tendons in GREY.
3. Color the locations where you would find ligaments in GREEN.
4. Color the bones YELLOW.
4. Label (with an arrow) the direction the radius and ulna move when the triceps contract.
5. Circle the three joints shown in the diagram.
6. Label the ball and socket joint, hinge joint, and peace.
A capillary is a very small blood vessel that carries blood from arteries to veins. Capillaries are between 5 to 10 micrometers in diameter.
continuous capillaries continuous capillaries
Capillaries are the structures that connect arteries to veins.
Capillaries The smallest of the blood vessels: capillaries.
Arteries "feed" the capillaries while veins drain the capillaries.
plmonary veins begin as capillaries and end as capillaries
Sinusoidal Capillaries
The thin walled blood vessels are called capillaries.
continuous capillaries
capillaries.
The smallest blood vessels are the capillaries.
Capillaries connect small arteries to small veins. Capillaries are the site of gas exchange.
The branches from arteries are arterioles and then into capillaries.