Skeletal+Systemgms

Skeletal System 1. What are the four main functions of the skeleton? (p. 208) Supports the body Protects soft body parts produces blood cells stores minerals and fat 2. What is the difference between cartilage and bone? (p.208) Cartilage is not as strong as bone but it is more flexible because the matrix is gel-like and contains many collagenous and elastic fibers. 3. Why is vitamin D important to bone growth? How do we get vitamin D? (p. 212) We get vitamin D from sunlight or from milk or other consumables. In the kidneys vitamin D is convrerted to a hormone that acts on the intestinal tract. The cheif function of vitamin D is intestinal absorption of calcium 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