2. in respiratory physiology, the process of exchange of air between the lungs and the ambient air; see alveolar ventilation and pulmonary ventilation. Ventilation refers to the process of removal of stale inside air from a building, room or a confined space and replacing it with natural fresh air. The lungs of birds do not inflate and deflate but rather retain a constant volume. Details. Cards Return to Set Details. Because gas exchange is a passive process, a ventilation system is needed to maintain a concentration gradient in alveoli. Laboratory ventilation is a form of engineering controls, which is one layer in this hierarchy. 1). 1). They have specially designed organs called gills, which are very efficient in absorbing oxygen from water. Website. External medium moves in and out of a respiratory system in a back and forth movement. Ventilation is mainly used to control indoor air quality by diluting and displacing indoor pollutants; it can also be used to control indoor temperature, humidity, and air motion to benefit thermal comfort, satisfaction with other aspects of indoor environment, or other objectives. Create your own flash cards! As environmental pressure is generally constant, the respiratory system must change its … See also respiration (def. cle (vĕn′trĭ-kəl) n. A small cavity or chamber within a body or organ, especially: a. In this process, the alternating pressure differences generated by contraction and relaxation of respiratory muscles causes the air exchange between alveoli of the lungs and atmosphere. Definition of ventilation noun in Oxford Advanced Learner's Dictionary. The human respiratory system is adapted to allow air to pass in and out of the body, and for efficient gas exchange to happen. Ventilation Jump to: navigation, search For other uses, see Ventilation (disambiguation).. ventilation The mechanics of breathing in and out through the use of the diaphragm and muscles in the wall of the thoracic cavity. 10/13/2011. Definition. Meaning and definition of ventilation : Any method of increasing contact between the respiratory medium and the respiratory surface. Ventilation definition: the act or process of ventilating or the state of being ventilated | Meaning, pronunciation, translations and examples Difference Between Ventilation and Respiration Definition. See also respiration (def. The ventilation has two main phases; inspiration and expiration (also known as inhale and exhale). The latter is the process by which air enters and leaves the body - our breathing mechanism. Ventilation: Ventilation refers to the provision of fresh air into the lungs. Also, the lungs are unidirectionally ventilated rather than having a tidal, bidirectional flow, as in other vertebrates with lungs. Our tips from experts and exam survivors will help you through. Learn / Biology / Acid Base Balance And Ventilation. At low tide or during a dry period, clams and mussels close their shells and thus prevent dehydration. Exercise and smoking both affect the lungs and circulatory system. 1). Browse. Ventilation Jump to: navigation, search For other uses, see Ventilation (disambiguation).. ventilation The mechanics of breathing in and out through the use of the diaphragm and muscles in the wall of the thoracic cavity. Internal Respiration Definition. How to use biology in a sentence. n. 1. a. Page; Discussion; History; Tools. Acid-Base Balance and Ventilation Definition. Level. Definition. Learn more. Mixing ventilation saves energy by using heat gains from the occupants and electrical equipment in the room to heat the incoming air, instead of requiring additional heating from a radiator. Not only do animals need a way to get more oxygen into the cells, but they al… Jason and I have been best friends for over 15 years. Breathing (or ventilation) is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to bring in oxygen and flush out carbon dioxide. Book. View Guided Notes - The Respiratory and Circulatory Systems.pdf from BIOLOGY DDF at Odyssey Online Learning. From prokaryotic bacteria and archaeans to eukaryotic protists, fungi, plants, and animals, all living organisms undergo respiration.Respiration may refer to any of the three elements of the process. CONTINUE SCROLLING OR CLICK HERE FOR RELATED SLIDESHOW Ventilation refers to the process of removal of stale inside air from a building, room or a confined space and replacing it with natural fresh air. Biology definition is - a branch of knowledge that deals with living organisms and vital processes. Ventilation definition: the act or process of ventilating or the state of being ventilated | Meaning, pronunciation, translations and examples Description . Acid-Base Balance and Ventilation. ventilation In biology, the process by which air or water is taken into and expelled from the body of an animal and passed over a surface across which gas exchange takes place. Ventilation is the movement of air into and out of the lungs. ventilation [ven″tĭ-la´shun] 1. the process or act of supplying a house or room continuously with fresh air. Lan. Mechanics of Ventilation. The absence of the ventilation for 4 to 6 minutes can cause virulent brain damages and may result in death. Anatomy of the lungs. Ventilation is the movement of air into and out of the lungs. The ribs, intercostal muscles and diaphragm all play important roles in, relax and the external intercostal muscles contract, pulling the ribcage upwards and outwards, lung volume increases and the air pressure inside decreases, the external intercostal muscles relax and the internal intercostal muscles contract, pulling the ribcage downwards and inwards, the diaphragm relaxes, moving back upwards, lung volume decreases and the air pressure inside increases, Home Economics: Food and Nutrition (CCEA). The Respiratory and Circulatory Systems Glossary TERM DEFINITION ventilation the When air reaches alveoli, diffusion occurs and PO2 falls further, as PCO2 increases. This is an essential process for oxygenation and respiration processes to occur. Ventilation, or breathing, is the movement of air through the conducting passages between the atmosphere and the lungs.The air moves through the passages because of pressure gradients that are produced by contraction of the diaphragm and thoracic muscles.. Learn / Biology / Acid Base Balance And Ventilation. Medium flows past gas exchange surface in an unpredictable pattern. 1. the process or act of supplying a house or room continuously with fresh air. Breathing: The process of respiration, during which air is inhaled into the lungs through the mouth or nose due to muscle contraction and then exhaled due to muscle relaxation. How to use ventilation in a sentence. Biology. noun the stimulation of natural respiratory functions in persons whose breathing has failed or in newborn infants by artificially forcing air into and out of the lungs. ventilator definition: 1. an opening or a device that allows fresh air to come into a closed space: 2. a machine that…. See also respiration (def. Ventilation definition is - the act or process of ventilating. Internal respiration is the process of diffusing oxygen from the blood, into the interstitial fluid and into the cells. The replacement of stale or noxious air with fresh air. Non-directional Ventilation. VENTILATION AND PERFUSION I; Shared Flashcard Set. 2. in respiratory physiology, the process of exchange of air between the lungs and the ambient air; see alveolar ventilation and pulmonary ventilation. Animal cells use oxygen and produce carbon dioxide as a byproduct. Pulmonary ventilation is also known by the more common term namely breathing. Ventilation - definition of ventilation by The Free Dictionary. Breathing (or ventilation) is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to bring in oxygen and flush out carbon dioxide.. 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