Quiz on Human Body Systems

The organ we use to breathe is called:

• Heart

• Lungs

• Stomach

• Brain

What gas do we need from the air to live?

• Oxygen

• Smoke

• Carbon dioxide

• Dust

The part that moves up and down to help us breathe is:

• Nose

• Diaphragm

• Heart

• Rib

Tiny air sacs inside the lungs are called:

• Bubbles

• Balloons

• Alveoli

• Tubes

Which habit is bad for the lungs?

• Running

• Smoking

• Swimming

• Breathing fresh air

Coughing a lot and finding it hard to breathe is a sign of:

• Headache

• Asthma

• Toothache

• Cold hands

The organ that pumps blood around our body is:

• Brain

• Heart

• Lung

• Stomach

Blood travels through small tubes called:

• Veins and arteries

• Muscles

• Nerves

• Bones

Blood carries:

• Toys

• Oxygen and food

• Water only

• Air only

Which part of the blood helps stop bleeding when we get a cut?

• Red cells

• Platelets

• Plasma

• White cells