The Human Respiratory System Quiz

The human respiratory system is responsible for taking in _________ from the air and delivering it to the bloodstream.

Oxygen is transported to the cells, where it is used to release _________ from food.

The waste product _________ is transported from the cells back to the lungs to be exhaled.

The main organs of the respiratory system include the _________, _________, and lungs.

Tiny air sacs called _________ in the lungs are where oxygen and carbon dioxide are exchanged.

Match the Parts of the Respiratory System to Their Functions: Trachea -

• Takes oxygen from the air into the bloodstream.

• Filters and warms air as it passes through the nose.

• Carries air from the nose and mouth to the lungs.

Match the Parts of the Respiratory System to Their Functions: Lungs -

• Transports nutrients from the bloodstream to the cells.

• Main organs where gas exchange occurs.

• Pumps blood throughout the body.

Match the Parts of the Respiratory System to Their Functions: Diaphragm -

• A muscle that helps move air in and out of the lungs.

• Tiny blood vessels for gas exchange.

• The part of the brain that controls breathing.

True or False: Oxygen is transported in the blood by red blood cells.

• True

• False

True or False: Carbon dioxide is a waste product that is exhaled from the lungs.

• True

• False