The statement 'The pulmonary circulation directly serves the metabolic needs of body tissues' is:

The statement 'The pulmonary circulation directly serves the metabolic needs of body tissues' is:

• A. True
• B. False
• C. Not related
• D. Only during exercise

Answer: (B)

Pulmonary circulation has the job of exchanging gases in the lungs: blood goes from the right heart to the lungs, becomes oxygenated, and returns to the left heart to be pumped to the rest of the body. The metabolic needs of body tissues are met by the systemic circulation, which delivers oxygen and nutrients from the lungs (via the left heart) to all tissues. While lung oxygenation enables tissue metabolism, the lungs themselves do not directly supply tissues with nutrients. So the statement is false.

Pulmonary circulation has the job of exchanging gases in the lungs: blood goes from the right heart to the lungs, becomes oxygenated, and returns to the left heart to be pumped to the rest of the body. The metabolic needs of body tissues are met by the systemic circulation, which delivers oxygen and nutrients from the lungs (via the left heart) to all tissues. While lung oxygenation enables tissue metabolism, the lungs themselves do not directly supply tissues with nutrients. So the statement is false.