Skeletal System- Bones and Bone Tissue

In hyaline cartilage, the cells that produce new matrix are called this:

• a. chondroblast

• b. osteocyte

• c. chondrocyte

• d. osteoblast

Chondrocytes receive nutrients in this manner:

• a. directly from blood vessels

• b. from the lacuna

• c. diffusion through matrix

• d. from the inner layer of perichondrium

The flexible strength of bone is attributed to this:

• a. hydroxyapatite

• b. collagen fibers

• c. ligaments

• d. perichondrium

Osteochondral progenitor cell give rise to these:

• a. osteoblasts

• b. chondroblasts

• c. osteoclasts

• d. both a and b

• e. both a and c

Endochondral ossification begins at this time:

• a. during fetal development

• b. during puberty

• c. adulthood

• d. around age 50

This can be said of intramembranous ossification:

• a. it forms the frontal and parietal bones

• b. fontanels are found between skull bones

• c. osteoblasts lay down matrix around collagen fibers

• d. all of these

In this zone of the epiphyseal plate, new cartilage is produced as the chondrocytes divide and form stacks of cells:

• a. resting cartilage

• b. proliferation

• c. hypertrophy

• d. calcification

When a fracture is healing, these cells move into the fracture site and tear down the damaged bone:

• a. osteoblasts

• b. osteoclasts

• c. osteocytes

• d. chondrocytes

This process of bone repair requires the longest amount of time:

• a. hematoma formation

• b. internal callus formation

• c. bone remodeling

• d. callus ossification

If a fracture occurs in the diaphysis of a long bone, the structure that forms between the ends of the bone as well as the medullary cavity is called this:

• a. hematoma

• b. internal callus

• c. external callus

• d. granulation tissue