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2,565 solutions. Terms in this set (12) Breathing Mechanics. 2 Phases of Breathing: 1. Inspiration - air flows into lungs. 2. Expiration - gases exit lungs. 2 phases act to ventilate the lungs. Pressure Relationships in the Thorax. Atmospheric pressure (Patm) - pressure gas exerts on surface of earth = 760 mm Hg = 1 atm.
11 Οκτ 2024 · Study with Quizlet and memorize flashcards containing terms like Describe the process of expiration, When would expiration be forced? What muscles are involved?, How can a lung collapse? What happens? and more.
16 Ιουλ 2023 · The processes of inspiration (breathing in) and expiration (breathing out) are vital for providing oxygen to tissues and removing carbon dioxide from the body. Inspiration occurs via active contraction of muscles – such as the diaphragm – whereas expiration tends to be passive, unless it is forced.
17 Ιαν 2023 · Expiration is typically a passive process that happens from the relaxation of the diaphragm muscle (that contracted during inspiration). The primary reason that expiration is passive is due to the elastic recoil of the lungs.
Expiration is generally a passive event brought about by relaxation of the diaphragm and external intercostal muscles. The ribcage, diaphragm and lung tissue itself return by elastic recoil to their original pre-inspiratory positions.
30 Αυγ 2020 · Inspiration is the process that causes air to enter the lungs, and expiration is the process that causes air to leave the lungs (Figure \(\PageIndex{3}\)). A respiratory cycle is one sequence of inspiration and expiration.
