Chapter 8 The Appendicular Skeleton - Anatomy and Physiology ... - Free Printable

The image you've provided is a detailed anatomical diagram of the lower limb skeleton, showing both anterior (front) and posterior (back) views of the pelvic region and legs. The goal is to label the various bones and landmarks shown in the diagram.

Let’s identify and label each structure based on standard human anatomy:

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🔹 Key Structures Identified:

#### 1. Pelvic Girdle & Hip Bones
- (Top left and right):
- Ilium – The large, curved upper portion of the hip bone.
- Ischium – The lower, posterior part of the hip bone.
- Pubis – The anterior, inferior part of the hip bone.
- Acetabulum – The socket where the femur head articulates (formed by ilium, ischium, and pubis).
- Anterior Superior Iliac Spine (ASIS) – Prominent bony projection at the front top of the ilium.
- Posterior Superior Iliac Spine (PSIS) – Bony projection at the back top of the ilium.
- Greater Sciatic Notch – A large notch on the posterior side of the ilium.
- Pubic Symphysis – Joint between the two pubic bones anteriorly.

#### 2. Femur (Thigh Bone)
- Head of Femur – Articulates with acetabulum.
- Neck of Femur – Connects head to shaft.
- Greater Trochanter – Large lateral projection near the neck.
- Lesser Trochanter – Smaller medial projection (not visible in anterior view).
- Shaft of Femur – Long central part.
- Medial and Lateral Condyles – Rounded ends at knee joint.
- Patellar Surface – Area where patella articulates (on anterior aspect).

#### 3. Patella (Kneecap)
- Patella – Triangular bone in front of the knee joint.

#### 4. Tibia and Fibula (Lower Leg Bones)
- Tibia – Larger, weight-bearing bone.
- Medial Condyle – Articulates with femoral condyle.
- Lateral Condyle – Also articulates with femur.
- Tibial Tuberosity – Protrusion above the patellar ligament attachment.
- Medial Malleolus – Medial ankle projection.
- Fibula – Thinner bone, lateral to tibia.
- Head of Fibula – Top end.
- Lateral Malleolus – Lateral ankle projection.

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🧩 Labeling the Diagram (From Top to Bottom):

#### Left Side (Anterior View):
1. Ilium (top)
2. Anterior Superior Iliac Spine (ASIS)
3. Acetabulum
4. Greater Trochanter
5. Neck of Femur
6. Head of Femur
7. Shaft of Femur
8. Patella
9. Tibial Tuberosity
10. Medial Condyle of Femur
11. Lateral Condyle of Femur
12. Medial Condyle of Tibia
13. Lateral Condyle of Tibia
14. Medial Malleolus
15. Fibula (shaft)
16. Lateral Malleolus

#### Right Side (Posterior View):
1. Ilium
2. Posterior Superior Iliac Spine (PSIS)
3. Greater Sciatic Notch
4. Ischium
5. Greater Trochanter
6. Shaft of Femur
7. Medial Condyle of Femur
8. Lateral Condyle of Femur
9. Popliteal Surface of Femur (posterior surface)
10. Medial Condyle of Tibia
11. Lateral Condyle of Tibia
12. Medial Malleolus
13. Fibula (shaft)
14. Lateral Malleolus

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✔ Summary of Labels:

| Label | Structure |
|------|----------|
| 1 | Ilium |
| 2 | ASIS (Anterior Superior Iliac Spine) / PSIS (Posterior Superior Iliac Spine) |
| 3 | Acetabulum |
| 4 | Greater Trochanter |
| 5 | Neck of Femur |
| 6 | Head of Femur |
| 7 | Shaft of Femur |
| 8 | Patella |
| 9 | Tibial Tuberosity |
| 10 | Medial Condyle of Femur |
| 11 | Lateral Condyle of Femur |
| 12 | Medial Condyle of Tibia |
| 13 | Lateral Condyle of Tibia |
| 14 | Medial Malleolus |
| 15 | Fibula |
| 16 | Lateral Malleolus |

> ⚠️ Note: Some labels may be shared across both views depending on how the lines are drawn. For example, the greater trochanter appears in both views.

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💡 Tips for Studying This Diagram:

- Use the pelvis as a reference point — the iliac crest, ASIS, and PSIS are key landmarks.
- Remember that the femur is the longest bone and has trochanters near the head.
- The knee joint includes femoral and tibial condyles and the patella.
- The tibia bears most of the body's weight; the fibula is more for muscle attachment.

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If you're completing this labeling exercise, ensure that:
- Each box corresponds to the correct anatomical name.
- You distinguish between anterior and posterior structures.
- You use precise terminology (e.g., “medial” vs. “lateral”, “superior” vs. “inferior”).

Let me know if you'd like a labeled version or flashcards!