| 1. | IIeum, ischium pubis - Form coxal bones of pelvic girdle |
| 2. | Actin, myosin, troponin - Muscle proteins |
| 3. | Malleus, incus, stapes - Ear osicles |
| 4. | Hyoid, zygomatic, sphenoid - Skull bones |
| 1. | Contains fibrous cartilage allowing slight movement |
| 2. | Contains dense fibrous connective tissue for full immobility |
| 3. | Contains synovial fluid for greater flexibility |
| 4. | Directly connects the femur with the pelvis |