Human Body Quiz

What is the main organ of the circulatory system?

• Heart

• Lungs

• Brain

• Stomach

What do we call the system that helps us breathe?

• Digestive System

• Circulatory System

• Nervous System

• Respiratory System

What is the function of red blood cells?

• Control movement

• Help digestion

• Carry oxygen

• Fight infections

Which part of the body helps us move?

• Skin

• Bones

• Heart

• Lungs

What do we call the body's defense against sickness?

• Immune System

• Nervous System

• Respiratory System

• Digestive System

What is the outer layer of the body called?

• Bone

• Fat

• Skin

• Muscle

What do we call the tiny building blocks of life?

• Systems

• Organs

• Tissues

• Cells

What is the main job of the digestive system?

• To send signals

• To pump blood

• To break down food

• To help us breathe

What do we call the part of the body that helps us see?

• Mouth

• Eyes

• Nose

• Ears

What is the function of muscles?

• To protect organs

• To help us move

• To store fat

• To make blood