I WONDER - Where Does Blood Come From?

The video explains the roles of red and white blood cells in the human body. Red blood cells are responsible for carrying oxygen, while white blood cells fight diseases and aid in healing. Both types of cells are produced in the bone marrow, the soft tissue inside bones.

What is the primary function of red blood cells?

• To create scabs

• To carry oxygen

• To produce energy

• To fight infections

Which type of blood cell is responsible for defending the body against diseases?

• White blood cells

• Plasma cells

• Red blood cells

• Platelets

How do white blood cells assist in the healing process?

• By transporting nutrients

• By carrying oxygen

• By creating scabs

• By producing energy

Where are both red and white blood cells produced?

• In the liver

• In the heart

• In the lungs

• In the bone marrow

What is the soft and middle part of the bones called, where blood cells are made?

• Cartilage

• Marrow

• Periosteum

• Cortex