Skeletal+System+WG

Skeletal System 1. What are the four main functions of the skeleton? (p. 208) 1) The skeleton supports the body. 2) The skeleton protects the soft body parts. 3) The skeleton produces blood cells. 4) The skeleton stores minerals and fats.

2. What is the difference between cartilage and bone? (p.208) Cartilage is not as strong as bone, but it is more flexible because of the matrix is gel-like and contains many collage nous and elastic fibers. Cartilage also has no nerves, or vessels, which makes it a slow healing process. Bone is a harder material than cartilage

3. Why is vitamin D important to bone growth? How do we get vitamin D? (p. 212) Vitamin D absorbs calcium and the kidneys converts the Vitamin D into hormones, these hormones are what helps our bones grow. We get Vitamin D from milk mainly, but we also can get it in the skin when it is exposed to sunlight.

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