PQ 5.3 THE STRUCTURE OF THE SKELETON

Which part of the skeletal system protects the spinal cord?

• Axial skeleton

• Appendicular skeleton

• Visceral skeleton

• Pectoral girdle

What is the function of core muscles in the axial skeleton?

• Provide stability and support

• Allow smooth movement within joints

• Protect the ends of bones

• Connect bone to bone or muscle to bone

Which region of the appendicular skeleton includes the shoulder blades and collar bones?

• Pectoral girdle

• Arms and forearms

• Hands

• Pelvis

Where is the acetabulum cavity located in the appendicular skeleton?

• Pectoral girdle

• Arms and forearms

• Pelvis

• Thighs and legs

What is the function of bone landmarks?

• Allow for the passage of blood vessels and nerves

• Allow smooth movement within joints

• Protect the ends of bones

• Connect bone to bone or muscle to bone

What is the purpose of articular cartilage in a long bone?

• Smooth movement within joints

• Blood-cell formation

• Structural integrity

• Connect bone to bone or muscle to bone

Where is red marrow found in a long bone?

• Periosteum

• Medullary cavity

• Compact bone

• Epiphysis

What is the function of compact bone in a long bone?

• Smooth movement within joints

• Blood-cell formation

• Structural integrity

• Connect bone to bone or muscle to bone

What is the purpose of epiphyseal plates in long bones?

• Allow for the passage of blood vessels and nerves

• Smooth movement within joints

• Blood-cell formation

• Bone growth

What is the outer layer of bones called?

• Cortex

• Trabeculae

• Periosteum

• Epiphysis