Structure And Function Of The Skeletal System

Question 1

What are the main functions of the skeletal system?

Answer 1

• Support: Provides structure and support to the body.
• Protection: Shields vital organs (e.g., skull protects the brain).
• Movement: Acts as levers for muscles.
• Mineral Storage: Stores essential minerals like calcium and phosphorus.
• Blood Cell Production: Produces blood cells in the bone marrow.

Question 2

What are the two main parts of the skeletal system?

Answer 2

• Axial Skeleton: Includes the skull, vertebral column, and rib cage.
• Appendicular Skeleton: Includes limbs, shoulder girdle, and pelvic girdle.

Question 3

Name and describe the four types of bones.

Answer 3

• Long Bones: e.g., femur, used for movement.
• Short Bones: e.g., carpals, provide stability.
• Flat Bones: e.g., skull, offer protection.
• Irregular Bones: e.g., vertebrae, have complex shapes.

Question 4

What is the role of cartilage in the skeletal system?

Answer 4

• Cushions joints.
• Reduces friction between bones.
• Supports structures like the nose and ears.

Question 5

What is the difference between compact and spongy bone?

Answer 5

• Compact Bone: Dense, provides strength.
• Spongy Bone: Lighter, contains red bone marrow.