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The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary ...
Biosafety level 4 laboratories are designed for diagnostic work and research on easily respiratory-acquired viruses which can often cause severe and/or fatal disease. What follows is a list of select agents that have specific biocontainment requirements according to US federal law.
Dorsal respiratory group – in the medulla; Ventral respiratory group – in the medulla; Pneumotaxic center – various nuclei of the pons; Apneustic center – nucleus of the pons; From the respiratory center, the muscles of respiration, in particular the diaphragm, [4] are activated to cause air to move in and out of the lungs.
Although total liquid ventilation (TLV) with completely liquid-filled lungs can be beneficial, [9] the complex liquid-filled tube system required is a disadvantage compared to gas ventilation—the system must incorporate a membrane oxygenator, heater, and pumps to deliver to, and remove from the lungs tidal volume aliquots of conditioned perfluorocarbon (PFC).
Dual band respiratory inductance plethysmography can be used to describe various measures of complex respiratory patterns. The image shows waveforms and measures commonly analyzed. Respiratory rate is the number of breaths per minute. A non-specific measure of respiratory disorder. Tidal volume (Vt) is the volume inspired and expired with each ...
Lactoferrin (LF) is a multifunctional protein which is an essential part of the respiratory tract antimicrobial defense system. [3] LF proteolysis produces the small peptides lactoferricin and kaliocin-1 both with antimicrobial activity. [4]
The respiratory system is the (anatomical) biological system of any organism that engages in metabolic gas exchange. Even plants have respiratory systems, taking in carbon dioxide and emitting oxygen. This category covers the structure of respiratory systems.
pulmonary fibrosis, Infant Respiratory Distress Syndrome, weak respiratory muscles, pneumothorax: volumes are decreased: often in a normal range (0.8–1.0) obstructive diseases: asthma, COPD, emphysema: volumes are essentially normal but flow rates are impeded: often low (asthma can reduce the ratio to 0.6, emphysema can reduce the ratio to 0. ...