Chapter 6 Lecture Quiz

If chondroblasts in the perichondrium actively produce new cartilage by secreting matrix, what kind of growth is it?

• interstitial

• acute

• calcified

• appositional

• longitudinal

Which of these cell types found in bones is responsible for releasing minerals from bone tissue back into the body?

• osteoclasts

• osteoprogenitor cells

• osteoblasts

• osteocytes

• osteophages

How are long bones different than short, flat, and irregular bones?

• long bones are covered by endosteum internally while the other bone types are not

• long bones have a diaphysis and epiphyses while the other bone types do not

• long bones have a medullary (marrow) cavity while the other bone types do not

• only b and c

• all of the above

How is the microscopic structure of compact and spongy bone different?

• spongy bone contains osteons while compact bone contains trabeculae

• spongy bone contains trabeculae while compact bone contains osteons

• spongy bone contains canaliculi while compact bone does not

• spongy bone does not contain canaliculi while compact bone does

• none of the above are correct

Why does bone remodeling continuously occur throughout life?

• bones continue to grow in both length and width until old age

• transient openings in bone tissue are necessary to allow diffusion of nutrients and oxygen to all cells in bone tissue

• bone resorption by osteoclasts maintains consistent levels of calcium and phosphate in the body; new bone tissue then needs to be deposited by osteoblasts

• the epiphyseal plates of long bones produce new bone tissue from hyaline cartilage until old age

• none of the above