PW10Cardio

Open Ended

Multiple Choice

Approximately how many times do you breathe in every day?

• 2,000

• 7,000

• 12,000

• 17,000

Multiple Choice

What is the process called that uses oxygen and results in the production of the ATP we use as energy?

• Anaerobic respiration

• Ventilation

• Aerobic respiration

• Circulation

Multiple Choice

The level of red blood cells in the blood is regulated by which organ(s)?

• The heart

• The lungs

• The liver

• The kidneys

Multiple Choice

To ensure sufficient oxygen diffusion, the lungs contain hundreds of millions of miniature balloon-like projections. This increases the lungs’ surface area to approximately how many square meters?

• 10

• 70

• 100

• 120

Multiple Select

Which of the following are necessary for oxygen to reach the cells of your body? Check all that apply

• Nervous and musculoskeletal system

• Cardiovascular and respiratory system

• Gastrointestinal system and kidneys