Skeletal System: Bones and Joints

TRUE OR FALSE
Spongy bone is more abundant in epiphyses of long bones

• True

• False

What are fontanels?

• Larger, membrane-covered spaces between developing skull bones

• The centers of ossification

• The outer surface of compact bone

• The primary ossification center

What is the first step of intramembranous ossification?

• Osteoblast activity

• Spongy bone development

• Compact bone development

• Endochondral ossification

What bones develop from endochondral ossification?

• Base of the skull, part of the mandible, epiphyses of the clavicles

• Only the long bones

• Only the flat bones

• All bones in the body

What is the zone of resting cartilage?

• Nearest the epiphyses and contains slowly dividing chondrocytes

• Where the chondrocytes produce new cartilage

• Where the chondrocytes mature and enlarge

• Very thin layer of hypertropied chondrocytes

What is the primary function of ligaments in the skeletal system?

• A. Connect bone to bone

• B. Connect muscle to bone

• C. Support and stabilize joints

• Both A and C

Which of the following bone cells performs bone reabsorption

• Osteocytes

• Osteoblasts

• Osteoclasts

Process where old bone is replaced with new bone

• Bone repair

• Bone reabsorption

• Bone remodeling

• Bone growth