| A | B |
|---|
| Red bone marrow | Hemopoietic tissue; produces blood cells |
| Erythropoiesis | Production of red blood cells |
| Calcium | Mineral stored in bones; essential for blood clotting |
| Framework | Skeleton's role in support |
| Muscles move the skeleton | Skeleton's role in movement |
| Covering for organs | Skeleton's role in protection |
| Compact | Type of bone tissue found in diaphysis of long bone; contains yellow bone marrow |
| Spongy | Type of tissue found in flat, short, and irregular bones; responsible for red bone marrow |
| Long bones | Examples: arms, legs, hands, feet |
| Short bones | Examples: wrist and ankle |
| Flat bones | Examples: pelvis, cranial bones, ribs |
| Has marrow canal containing yellow bone marrow | Long bones |
| Cartilage | Tissue that covers the joint surfaces of bones; provides smooth surface |
| Ossification | Tissue replaced by bone in this process |
| Vitamin D | Necessary for the absorption of calcium and phosphorus in the small intestine |
| Fontanels | Example of area where ossification is not complete at birth |
| Estrogen and testosterone | Hormone responsible for cessation of long bone growth |
| Temporal bone | Contains the external auditory meatus |
| Occipital | Contains foramen magnum (opening for spinal cord) |
| 7 | Number of cervical vertebrae |
| 12 | Number of thoracic vertebrae |
| 5 | Number of lumbar vertebrae |
| 1-7 | True ribs |
| 8-12 | False ribs |
| 11-12 | False ribs AND floating ribs |
| Elbow | Olecranon process |
| Humerous and ulna articulation (joining) makes this | Elbow (Olecranon process) |
| Acetabulum | Socket in the pelvis for the head of the femur |
| Femur | Thigh bone |
| Patella | Kneecap |
| Clavicle | Collar bone |
| Scapula | Shoulder blade |
| Zygoma | Cheek bone |
| Lower jaw | Mandible |
| Upper jaw | Maxilla |
