PLTW HBS Bones

What are the main components of the structure of long bones?

• cortex, medulla, endosteum, spongy bone

• diaphysis, epiphysis, periosteum, and marrow cavity

• femur, tibia, fibula, patella

• cartilage, ligaments, tendons, muscles

Explain the functions of the skeletal system.

• Support, movement, protection, blood cell production, mineral and fat storage

• Reproduction, excretion, metabolism

• Vision, hearing, taste

• Digestion, respiration, circulation

What are the different types of bone fractures?

• Linear, diagonal, circular, compressed, open, and simple fractures

• Transverse, oblique, spiral, comminuted, greenstick, and compound fractures

Describe the bone remodeling process.

• Old bone being dissolved and new bone being added

• Old bone being replaced with cartilage

• Old bone being repaired and new bone being removed

• Old bone being removed and new bone being formed

How does the structure of long bones contribute to their function?

• The structure of long bones allows for blood clotting

• The structure of long bones provides insulation and protection

• The structure of long bones provides strength, support, and allows for movement.

• The structure of long bones contributes to digestion and nutrient absorption

What are the major functions of the skeletal system?

• Balance, coordination, agility, and flexibility

• Vision, hearing, taste, and smell

• Digestion, respiration, excretion, and reproduction

• Support, protection, blood cell production, mineral storage, and movement

Discuss the differences between a greenstick fracture and a comminuted fracture.

• A greenstick fracture is caused by a fall from a height, while a comminuted fracture is caused by a sports injury

• A greenstick fracture is common in older adults, while a comminuted fracture is common in children

• A greenstick fracture is a result of osteoporosis, while a comminuted fracture is a result of a genetic disorder

• A greenstick fracture is incomplete and the bone is bent but not completely broken, while a comminuted fracture is complete and the bone is broken into multiple pieces.

Explain the role of osteoclasts and osteoblasts in the bone remodeling process.

• Osteoclasts form new bone tissue, while osteoblasts break down old bone tissue.

• Osteoclasts break down old bone tissue, while osteoblasts form new bone tissue.

• Osteoclasts and osteoblasts have no role in the bone remodeling process.

• Osteoclasts and osteoblasts are only found in cartilage, not in bone tissue.

How do bone fractures heal through the process of bone remodeling?

• Forming a callus, reabsorbing the callus, and reshaping the bone

• Applying heat to the fracture to melt the bone back together

• Injecting bone cement into the fracture

• Wrapping the fracture in a cast made of rubber

What are the factors that can affect bone remodeling?

• Emotions, pets, and transportation

• Weather, age, and education

• Music, sleep, and technology

• Hormones, physical activity, and nutrition