Skeletal+System+HW4+MC

Skeletal System SCI Human Biology - 1 Assigned: 10/2 Due: 10/6 Skeletal System 1. What are the four main functions of the skeleton? (p. 208) The four main functions of the skeleton is that the skeleton supports the body, protects soft body parts, produce blood cells, and stores minerals and fats. Along with the muscles, the skeleton permits flexible body movement. 2. What is the difference between cartilage and bone? (p.208) The difference between cartilage and bone is that cartilage isn’t as strong as bone, but 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) Vitamin D is important to bone growth because it is an intestinal absorption of calcium. In the absence of Vitamin D, children can develop rickets, a condition marked by bone deformities including bowed long bones. Vitamin D is formed in the skin when it is exposed to the sunlight, but it can also be consumed in the diet. Milk, in particular, is often fortified with Vitamin D today. 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