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Vital capacity Definition and Explanation PDF | Download eBooks

Learn Vital capacity definition in biology with explanation to study “What is Vital capacity”. Study vital capacity explanation with biology terms to review biology course for online degree programs.

Vital capacity Definition:

  • Tidal volume during maximal inhalation and exhalation is the vital capacity.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson

Vital capacity Explanation:

Vital capacity is the maximum amount of air a person can expel from the lungs after a total inhalation. It is equal to the sum of inspiratory reserve volume, tidal volume, and expiratory reserve volume. The vital capacity can be used to help differentiate causes of lung disease. In restrictive lung disease the vital capacity is decreased. In obstructive lung disease it is usually normal or only slightly decreased. A person's vital capacity can be measured by a spirometer. In combination with other physiological measurements, the vital capacity can help make a diagnosis of underlying lung disease.

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