Trace the Route of a Molecule of Oxygen Inhaled from Room

question 9

Multiple Choice

Trace the route of a molecule of oxygen inhaled from room air to the point of gas exchange.

-Step 5

• A)Larynx
• B)Left and right bronchi
• C)Trachea
• D)Oxygen is inhaled through the nose
• E)Bronchioles
• F)Alveoli

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Definitions:

Oxygen-poor Blood

Blood that has delivered its oxygen to the tissues of the body and is returning to the lungs to be reoxygenated.

Pulmonary Valves

Heart valves located at the opening of the pulmonary artery that prevent backflow of blood into the right ventricle.

Aortic Valves

The valve in the heart that controls blood flow from the left ventricle into the aorta.

Hemorrhagic Shock

A condition of reduced tissue perfusion, inadequate oxygen supply to the cells, often a result of severe blood loss.