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Physiological respiration is crucial for gas exchange, delivering oxygen for metabolism and removing carbon dioxide. It involves ventilation and perfusion, working together to maintain homeostasis. The respiratory cycle, including inhalation and exhalation, and the role of functional residual capacity (FRC) in stabilizing gas composition in the alveoli are also discussed, highlighting the complexity of respiratory functions.
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Physiological respiration facilitates the exchange of gases between an organism and its environment
Ventilation and perfusion work together to ensure oxygen is delivered to the body's cells and carbon dioxide is removed
Physiological respiration should not be confused with cellular respiration, as it involves the respiratory system and gas exchange with the external environment
The respiratory cycle consists of inhalation and exhalation
Inhalation is an active process while exhalation is typically passive, but can become active during certain activities
The functional residual capacity plays a critical role in maintaining a consistent internal environment for gas exchange
Breathing refers to the physical act of moving air in and out of the lungs, while ventilation includes the distribution and exchange of gases within the lungs
The respiratory rate, or ventilation rate, reflects the frequency of air exchange in the respiratory system
Respiratory physiology encompasses a wide range of research, from studying adaptations in different species to medical applications