Just Wing It! Chicken Wing Dissection Lab- Muscular and Skeletal Systems - Free Printable

Let’s go through each question one by one, using what we know from the chicken wing dissection lab and basic biology.

---

1. What is the name for tissue that contains fat?

Fat in the body is stored in a special kind of connective tissue called adipose tissue. You can see this yellowish clumpy layer under the skin of the chicken wing — that’s adipose tissue!

✔ Final Answer: Adipose tissue

---

2. Fill in the blanks with either “shortened” or “lengthened”: When the chicken wing is flexed, the “biceps brachii” muscle is ________, while the “triceps brachii” muscle is ________. When the chicken wing is extended, the “biceps brachii” muscle is ________, while the “triceps brachii” muscle is ________.

Think about how your own arm works:
- When you bend (flex) your elbow → biceps shorten, triceps stretch out (lengthen).
- When you straighten (extend) your elbow → biceps lengthen, triceps shorten.

Same thing happens in the chicken wing!

So:
- Flexed → biceps = shortened, triceps = lengthened
- Extended → biceps = lengthened, triceps = shortened

✔ Final Answer:
When the chicken wing is flexed, the “biceps brachii” muscle is shortened, while the “triceps brachii” muscle is lengthened. When the chicken wing is extended, the “biceps brachii” muscle is lengthened, while the “triceps brachii” muscle is shortened.

---

3. What are the three types of joints found in the human arm? Name them and give an example of where each is located.

Wait — actually, looking at the worksheet, it says: *“What are the three dragon and mutant...”* — that seems like a typo or joke. But based on standard anatomy and the context of the lab, they probably meant to ask:

> What are the three main types of joints in the human arm? Give examples.

But even better — since this is a chicken wing lab comparing to humans, let’s stick to what’s relevant:

In the human arm, we have:
- Hinge joint – like the elbow (allows bending and straightening)
- Ball-and-socket joint – like the shoulder (allows rotation in many directions)
- Pivot joint – like between radius and ulna near elbow (allows twisting forearm)

BUT — if the worksheet really said “dragon and mutant”, that might be a fun distraction 😄 — but scientifically, those aren’t real joint types.

Assuming it’s a misprint and they want real joint types:

✔ Final Answer:
The three main types of joints in the human arm are:
1. Hinge joint – e.g., elbow
2. Ball-and-socket joint – e.g., shoulder
3. Pivot joint – e.g., between radius and ulna (forearm twist)

*(Note: If your teacher meant something else by “dragon and mutant”, check with them — but biologically, those aren’t real joint types.)*

---

4. Why do you think blood supply to muscles is important?

Muscles need energy to move. Blood brings oxygen and nutrients (like glucose) to muscle cells so they can make energy. Without blood, muscles would get tired fast or stop working.

Also, blood carries away waste products like carbon dioxide and lactic acid.

✔ Final Answer:
Blood supplies muscles with oxygen and nutrients needed for energy, and removes waste products. Without good blood flow, muscles couldn’t work properly.

---

5. What is the difference between ligaments and tendons?

This is super important!

- Tendons connect muscle to bone. They help pull bones when muscles contract.
- Ligaments connect bone to bone. They hold joints together and keep them stable.

Example: In your knee, tendons attach your thigh muscle to your shin bone; ligaments hold your thigh bone and shin bone together.

✔ Final Answer:
Tendons connect muscle to bone. Ligaments connect bone to bone.

---

6. Assuming that the chicken wing moves similarly to the human arm, what type of joint is in the shoulder?

Looking at how the chicken wing attaches to the body — it rotates and moves in many directions, just like our shoulder.

That’s a ball-and-socket joint.

✔ Final Answer: Ball-and-socket joint

---

7. At the ends of the bones, there is a smooth white material. What is it called?

That slippery, shiny stuff covering the ends of bones inside joints is called cartilage. It reduces friction and cushions the bones so they don’t grind against each other.

✔ Final Answer: Cartilage

---

8. What is the purpose of cartilage?

As above — it acts like a cushion and makes movement smooth. Prevents bones from rubbing together and getting damaged.

✔ Final Answer:
Cartilage cushions the ends of bones and allows smooth, pain-free movement at joints.

---

9. Do you think you find more red marrow or yellow marrow in a chicken wing? Explain why.

Red marrow makes blood cells. Yellow marrow stores fat.

Chicken wings are small, active parts used for flying (or flapping). They need lots of blood cell production for oxygen delivery during activity.

Also, young animals (and birds) tend to have more red marrow because they’re growing and need more blood cells.

Plus — in the lab instructions, it says: “Break a bone in half. Observe the deep reddish brown in the inside.” That’s red marrow!

✔ Final Answer:
You’d find more red marrow in a chicken wing because chickens are active and need lots of blood cells for oxygen. Also, the lab shows reddish-brown marrow inside the bone, which is red marrow.

---

Final Answer:
1. Adipose tissue
2. shortened, lengthened, lengthened, shortened
3. Hinge (elbow), Ball-and-socket (shoulder), Pivot (forearm) *(assuming typo correction)*
4. Blood delivers oxygen/nutrients and removes waste so muscles can work
5. Tendons = muscle to bone; Ligaments = bone to bone
6. Ball-and-socket joint
7. Cartilage
8. Cushions bones and allows smooth movement
9. Red marrow — because chickens are active and need blood cell production; lab observation confirms reddish marrow