4 Osteoclasts are located in and function to a. lacunae; maintain and monitor the bone ECM b. the periosteum; maintain and monitor the bone ECM . lacunae; break down bone matrix d. the periosteum; build bone matrix e. the periosteum; break down bone matrix 5 Circle all that apply. What is the general function of a bone depression? a. It provides a pathway along which blood vessels or nerves travel. b. It provides a point of attachment for tendons or ligaments. c. It houses or protects structures such as blood vessels or sensory organs. d. It allows two bones to come together to form a joint. 6 Examples of long bones include a. the phalanges (bones of the fingers). b. the sternum. C. ankle bones. d. Both a and b are correct. e. Both a and c are correct. 7 Short bones are a. named for their length. b. about as long as they are wide. irregular in shape. d. longer than they are wide. 8 Label the following parts of a long bone on Figure 7.11. Articular cartilage Diaphysis O Distal epiphysis O Epiphyseal line Medullary cavity Perforating fibers Periosteum Proximal epiphysis Red bone marrow _ Yellow bone marrow FIGURE 7.11 Adult long bone: the femur. 9 The epiphyseal plate is a. the structure from which long bones grow in length. b. a remnant of the structure from which long bones grow in length. c. composed of yellow bone marrow. d. found lining the surface of the epiphysis. 10 In the zone of proliferation of the epiphyseal plate, a. chondrocytes are actively dividing. b. chondrocytes are maintained in a reserve to divide if needed. c. chondrocytes begin to enlarge in their lacunae as they mature. d. chondrocytes are calcified and abut the diaphysis with osteoblasts. 182 = Exploring Anatomy and Physiology in the Laboratory