Skelly+juice+homework

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 skelly supports the body The skelly protects soft body parts The skelly pdoduces blood cells The skelly stores minerals and fat The skelly along with the muslces permits flexible body movement 2. What is the difference between cartilage and bone? (p.208) Cartilage is not as strong as bone but it is a lot more flexible because the matrix is gel like and contains many collage nous 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 or it can be consumed in the diet. The vitamin D absorbs calcium in the intestines. 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