Skelly+JO


 * Skeletal System**

It is to; Support, protect body parts, produces blood cells, store minerals and fats, permits flexible body movements.
 * 1. What are the four main functions of the skeleton? (p. 208)**

Cartilage is not as strong as bone, its actually more flexible. It is gel-like and contains many elastic fibers. Also there are no nerves in cartilage which is good for padding joints, but also no blood vessels making it slow to heal.
 * 2. What is the difference between cartilage and bone? (p.208)**

Vitamin D is responsible for the absorption of calcium. Without vitamin D children can get rickets which is the bowing of larger bones in the body. Vitamin D is formed in the skin and we can also get it through/ by drinking milk. It is only formed in skin when skin is exposed to sunlight.
 * 3. Why is vitamin D important to bone growth? How do we get vitamin D? (p. 212)**


 * 4. Insert an image of a skeleton. You will need to know the location of the following bones.**


 * Skull**: ||**Pectoral girdle**: ||**Upper limb**:  ||**Rib Cage**:  ||**Pelvic girdle**:  ||**lower limb**:  ||
 * frontal bone ||clavicle  ||humerus ||sternum ||coaxyl bones ||femur ||
 * parietal bone ||scapula ||ulna ||ribs ||sacrum ||patella ||
 * temporal bone || ||radius ||costal cartilages ||coccyx || tibia ||
 * occipital bone || || carpals || || || fibula ||
 * zygomatic bone || ||metacarpals || || || tarsals ||
 * maxilla || ||phalanges || || || metatarsals ||
 * mandible|| || || || || phalanges ||