Chapter 6 Quiz: Bone Tissue and the Skeletal System
What is the correct sequence of steps in bone repair? 1. Cartilage in the external callus is replaced by bone. 2. A hematoma occurs. 3. An internal callus forms at the site of injury. 4. Osteoclasts and osteoblasts remodel the bone at the site of repair.
2, 3, 1, 4
The following are important steps in the process of endochondral ossification. What is the correct order for these events? 1. Enlarged chondrocytes die. 2. Osteoblasts replace calcified cartilage with spongy bone. 3. Chondrocytes enlarge and the surrounding matrix begins to calcify. 4. Blood vessels grow around the edges of the cartilage. 5. Perichondrial cells become osteoblasts and produce a superficial layer of bone.
3, 1, 4, 5, 2
Figure 6-1 The Structure of Compact Bone Use Figure 6-1 to answer the following questions: Which structure is characteristic of spongy bone?
5
Which of following is a function of the skeletal system?
All of the answers are correct. storage of inorganic salts, protection of vital organs, locomotion, support
________ account(s) for almost two-thirds of the weight of bone.
Calcium phosphate
Suppose that epiphyseal lines appear in a 10-year-old's long bones. Which of the following statements is, therefore, true?
The epiphyseal plates have ossified and further growth in length is not possible.
A child with rickets often has
bowed legs
Bone growth in length occurs by mitosis of
cartilage cells in the epiphyseal side of the metaphysis.
The lining of the medullary cavity is called the
endosteum
After a fracture of the diaphysis has healed, the thickened region that results is called the
external callus.
Which of the following labels best matches osteocyte?
mature bone cell
The carpal bones are examples of ________ bones.
short
Where in the body does the production of precursors for the synthesis of calcitriol occur?
skin
A large proximal projection on a bone is called the
trochanter
Which of the following bones is classified as "irregular" in shape?
vertebra
