Structure of the human skeleton

Question 1

How does the skeleton support the human body?

Answer 1

Provides a rigid framework that supports soft tissues and organs

Backbone (vertebral column) supports the body upright

Leg bones support body weight

Question 2

Which skeletal structures are involved in protection?

Answer 2

Skull protects the brain

Rib cage protects the heart and lungs

Vertebrae protect the spinal cord

Structure surrounds vital organs

Question 3

How does the skeleton help with movement (locomotion)

Answer 3

Bones and joints act as levers

Muscles are attached to bones and pull on them to create movement

Limb bones enable walking, running, grasping

Question 4

Which bones are involved in blood formation?

Answer 4

Bone marrow in long bones, ribs, pelvis, and sternum

Produces red blood cells, white blood cells, and platelets

This is called haematopoiesis

Question 5

What type of bone structure supports blood cell production

Answer 5

Spongy (cancellous) bone contains red bone marrow

Found in flat bones and ends of long bones

Rich in blood supply

Question 6

How does bone shape relate to function

Answer 6

Flat bones (e.g., skull, ribs) → protection

Long bones (e.g., femur, humerus) → movement and support

Irregular bones (e.g., vertebrae) → complex movements and protection