Which term is defined as the number of breaths taken per minute?

Which term is defined as the number of breaths taken per minute?

• A. Tidal volume
• B. Respiratory rate
• C. Vital capacity
• D. Residual volume

Answer: (B)

The main idea is how often you breathe in one minute. That measure is called respiratory rate. It tells you how many breaths occur per minute and can rise during exercise to supply more oxygen and remove carbon dioxide more quickly. Tidal volume is the amount of air moved with each breath, not how often you breathe. Vital capacity is the maximum amount of air you can exhale after a deep inhalation, reflecting lung size and strength. Residual volume is the air that stays in the lungs after you’ve blown out as hard as you can, which you can’t exhale completely.

The main idea is how often you breathe in one minute. That measure is called respiratory rate. It tells you how many breaths occur per minute and can rise during exercise to supply more oxygen and remove carbon dioxide more quickly.

Tidal volume is the amount of air moved with each breath, not how often you breathe. Vital capacity is the maximum amount of air you can exhale after a deep inhalation, reflecting lung size and strength. Residual volume is the air that stays in the lungs after you’ve blown out as hard as you can, which you can’t exhale completely.