Mark the following statements as true or false. If a statement is false, correct it to make a true statement.




c. The inspiratory capacity is equal to the vital capacity plus the tidal volume.

Verified step by step guidance

1. Identify the components of inspiratory capacity (IC) and vital capacity (VC).
2. Inspiratory capacity (IC) is the sum of tidal volume (TV) and inspiratory reserve volume (IRV).
3. Vital capacity (VC) is the sum of tidal volume (TV), inspiratory reserve volume (IRV), and expiratory reserve volume (ERV).
4. Compare the definitions: IC = TV + IRV and VC = TV + IRV + ERV.
5. Determine if IC can be equal to VC + TV by comparing the components.

Key Concepts

Inspiratory Capacity

Inspiratory capacity (IC) is the maximum amount of air that can be inhaled after a normal expiration. It is calculated as the sum of tidal volume (the amount of air inhaled or exhaled during normal breathing) and inspiratory reserve volume (the additional air that can be inhaled with effort after a normal inhalation). Understanding this concept is crucial for evaluating respiratory function.

Vital Capacity

Vital capacity (VC) is the total amount of air that can be exhaled after a maximum inhalation. It is the sum of tidal volume, inspiratory reserve volume, and expiratory reserve volume. This concept is essential for assessing lung health and capacity, as it reflects the maximum volume of air a person can control during breathing.

Tidal Volume

Tidal volume (TV) is the amount of air that is inhaled or exhaled during normal breathing at rest. It is a fundamental component of respiratory physiology and is important for understanding how much air is exchanged in the lungs during typical respiratory cycles. Tidal volume is a key factor in calculating other lung volumes and capacities.