Digestive System Worksheet

What is the main function of the digestive system in the human body?

• To extract nutrients from food and expel undigested waste.

• To help the body breathe.

• To pump blood throughout the body.

• To control movement and balance.

What is the function of the oesophagus in digestion?

• It produces gastric juices

• It absorbs nutrients into the blood

• It carries food from the mouth to the stomach

• It breaks down food into smaller pieces

What do platelets do when the body is losing blood because of a cut?

• Carry oxygen

• Fight infection

• Join together and help stop the bleeding

• Carry carbon dioxide

How many chambers does the heart have?

• Two

• Three

• Four

• Five

What are the names of the top two chambers of the heart?

• Ventricles

• Atria

• Valves

• Capillaries

What is the function of the pulmonary artery?

• It carries oxygen-rich blood to the heart

• It carries deoxygenated blood from the heart to the lungs

• It carries nutrients to the brain

• It carries waste to the kidneys

During pulmonary circulation, where does the blood flow from the heart?

• To the stomach

• To the lungs

• To the liver

• To the skin

What is the difference between pulmonary and systemic circulation?

• Pulmonary circulation moves blood between heart and lungs, systemic between heart and rest of body

• Pulmonary circulation moves blood to the brain, systemic to the heart

• Pulmonary circulation moves blood to the skin, systemic to the muscles

What is the role of capillaries in the alveoli?

• To produce carbon dioxide

• To carry oxygen and carbon dioxide

• To contract the diaphragm

• To divide the trachea

What do the kidneys do in the urinary system?

• Produce blood cells

• Stimulate water and waste products from blood

• Help in breathing

• Absorb nutrients from food