During exhalation, A) pressure inside the lungs is less than the outside pressure. B) pressure within the thoracic cavity decreases. C) inside and outside pressures are equal. D) the volume of the thoracic cavity increases. E) the volume of the thoracic cavity decreases.

During exhalation, A) pressure inside the lungs is less than the outside pressure. B) pressure within the thoracic cavity decreases. C) inside and outside pressures are equal. D) the volume of the thoracic cavity increases. E) the volume of the thoracic cavity decreases.

Basic Clinical Lab Competencies for Respiratory Care: An Integrated Approach

5th Edition

ISBN:9781285244662

Author:White

Publisher:White

Chapter25: Continuous Mechanical Ventilation

Section: Chapter Questions

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An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.

Question

During exhalation,

		A) pressure inside the lungs is less than the outside pressure.
		B) pressure within the thoracic cavity decreases.
		C) inside and outside pressures are equal.
		D) the volume of the thoracic cavity increases.
		E) the volume of the thoracic cavity decreases.

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