Pg 64 of IAN The Skeletal System
There are around 206 in the adult human Work on your own for 7-8 minutes to fill in what you know. There are around 206 in the adult human body. These bones plus the connecting tissue make up the system. bones skeletal The skeletal system is very important for many reasons. Some bones help our organs. The , for example, protects our brains and the , protects our lungs. protect cranium ribcage
The skeletal system also gives us our Without a , we would be shapeless blobs like a or an earthworm. Our bones, which are connected by , provide a frame for the rest of the organs, giving us our unique body shape. shape. skeleton jellyfish ligaments The skeletal system also helps us Muscles, which are attached to bones by , cause the bones to move, which makes our bodies move. move. tendons
Bones also help your body store such as calcium. If there is too much calcium in the blood, some of it becomes bone. If there is not enough calcium, then the bones give some to the blood. minerals Finally, another important function of bones is to produce Inside bones there is a soft substance called , which is used to make blood cells. blood. marrow
Use pg. 519 of your text book to help you begin labeling the bones of the human skeleton. We will go over this and leave blank any you are not sure about.
Page 63 of IAN 1.cranium (skull) 3. clavicle (collar 2. mandible (jaw) bone) 2. mandible (jaw) Sternum ( breast bone) 4. scapula (shoulder blade) 6. ribs 8. vertebral column (backbone) 7. humerus 11. pelvic girdle (pelvis) 9. radius (goes to thumb) 10. ulna (goes to pinky) 12. femur (thigh bone) tibia (inside, bigger) 14. fibula (outside, smaller)