| A | B |
|---|
| How many bones are named in the human body? | 206 bones |
| elastic connective tissue | cartilage |
| What age do bones usually stop growing? | 25 years-old |
| 3 vital organs protected by the skeleton | brain, lungs, heart |
| Five very important reasons to have a skeleton are: | 1) to support parts of the body- structure 2) movement 3) protection of vital organs 4) to provide essential minerals ( Calcium and Phospherus) 5)To supply the body with all the red blood cells and some white blood cells- in bone marrow |
| cranium | 8 bones forming a dome-shaped structure- protects the brain |
| Facial bones | 14 bones- protect the face |
| frontal bone | forehead |
| occipital bone | back of the skull |
| parietal bones | top of skull- wrap around to the back |
| temporal bones | above the ears |
| sphenoid | behind the eyes |
| zygomatic | cheekbones |
| nasal bones | 10 small bones in the bridge of the nose |
| maxilla | upper jaw |
| mandible | lower jaw |
| How amny individual bones are in the vertebral column? | 33 |
| Cervical vertebrae | first 7 vertebrae in the neck region |
| Thoracic vertebrae | 12 attached to the ribs |
| Lumbar vertebrae | 5- lower back- largest vertebrae |
| Sacrum | 5- fused together attached to hips |
| coccyyx | last 4 fused together (tail bone) |
| ribs | total 12 pairs |
| true ribs | 7 pairs of ribs attached to the sternum |
| false ribs | 5 pairs of ribs not directly attached to the sternum |
| floating ribs | last 2 pairs of ribs don't reach the front |
| pectoral girdle | scapula and clavicle |
| pelvic girdle | sacrum |
