Differentiate
Inhalation and exhalation (external intercoastal muscles)
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During inhalation, the lungs expand with air and oxygen diffuses across the lung's surface, entering the bloodstream.
During exhalation, the lungs expel air and lung volume decreases. ... During exhalation, the diaphragm is relaxed which decreases the volume of the lung cavity.
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inhlation -the process of taking in air ,air rich is oxygen is called inhalation
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