skeleton

Skeletal System 1. What are the four main functions of the skeleton? (p. 208) The functions of the skeleton is that the skeleton supports the body. It also protects soft body parts and produces red blood cells. The keleltonn stores minerals and fats. It also permits flexible body movement along with the muscles. 2. What is the difference between cartilage and bone? (p.208) Cartlige is not as strong as bone, but it is more flexible because the matrix is a gel-like material and contain many collagenous and elastic fibers. 3. Why is vitamin D important to bone growth? How do we get vitamin D? (p. 212) Vitamin D is formed in the skin when it is exposed to sunlight. It can also be absorbed to diet of dairy. Vitamin D is important we need it for our kidneys. The chief function of vitamin D is intestinal absorption of calcium. In the absence of Vitamin D children may develop rickets if they have a deficiency of calcium/vitamin D. 4. Insert an image of a skeleton. You will need to know the location of the following bones. Skull: frontal bone, parietal bone, temporal bone, occipital bone, zygomatic bone, maxilla, mandible Pectoral girdle: clavicle, scapula Upper limb: humerus, ulna, radius, carpals, metacarpals, phalanges Rib Cage: sternum, ribs, costal cartilages Pelvic girdle: coaxyl bones, sacrum, coccyx lower limb: femur, patella, tibia, fibula, tarsals, metatarsals, phalanges