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Topic: Ventilation (physiology)

    Note: these results are not from the primary (high quality) database.

Dynamic effects of positive-pressure ventilation on canine left ventricular pressure-volume relations -- Denault et al. 91 (1): 298 -- Journal of Applied Physiology To understand the hemodynamic effects of ventilation, it is necessary to analyze the effects of ventilation throughout the In nine dogs, the effect of positive-pressure ventilation on LV performance was compared between control and AVF conditions. ventilation on parallel conduction when cardiac volumes were changing jap.physiology.org /cgi/content/full/91/1/298

Editorial: Straining to understand mechanotransduction in the lung -- Schumacker 282 (5): 881 -- AJP - Lung Cellular and Molecular Physiology Physiology, April 1, 2003; 18(2): 43 - 49. Ventilation with lower tidal volumes compared with traditional tidal volumes for acute lung injury and the acute respiratory distress syndrome. distortion in the physiology or the pathophysiology of the ajplung.physiology.org /cgi/content/full/282/5/L881   (1150 words)

Amazon.com: Essentials of Mechanical Ventilation: Books: Dean R. Hess,Robert M. Kacmarek Mechanical ventilation is used to provide artificial support of lung function. Mechanical Ventilation and Other Measures of Respiratory Support for Pediatric and Adult Patients by Michael D. Pappas This resource covers the essentials of mechanical ventilation of respiratory care patients. www.amazon.com /exec/obidos/tg/detail/-/0071352295?v=glance   (796 words)

Effects of duration of positive-pressure ventilation on blood-brain barrier function in premature lambs -- Stonestreet et al. 88 (5): 1672 -- Journal of Applied Physiology ventilation, fluctuations (25) and/or increases in venous microvascular Increases in venous pressures have been implicated in the disruption of the blood-brain barrier (7, 16). Increases in mean airway pressure have been shown to selectively alter blood-brain barrier permeability in newborn pigs (20). jap.physiology.org /cgi/content/full/88/5/1672   (3789 words)

Physiology of Acute Exercise Whilst the physiological response to a single bout of exercise may be obvious (increased heart rate, ventilation, metabolic rate etc), a clear appreciation of the control mechanisms that mediate the complex interaction of the various physiological systems is needed. Furthermore, in order to understand the integrated nature of exercise physiology, the biochemical events underpinning them will also be addressed. This module is designed to provide a broad but thorough understanding of the physiological factors relating to acute exercise. www.strath.ac.uk /sca/pg-info/medsports/physiology-ae.html   (3789 words)

Comparative Physiology of Lung Complexity: Implications for Gas Exchange -- Powell and Hopkins 19 (2): 55 -- Physiology The avian respiratory system is partitioned heterogeneously, so the functions of ventilation and gas exchange are separate in the air sacs (shaded in gray) and the parabronchial lung, respectively. Ventilation and pulmonary gas exchange during exercise in the savannah monitor lizard (Varanus exanthematicus). The mammalian respiratory system is partitioned homogeneously, so the functions of ventilation and gas exchange are shared by alveoli and much of the lung volume. physiologyonline.physiology.org /cgi/content/full/19/2/55   (2947 words)

Mite Combined with a dynamic model of mite physiology, this is being used to predict mite response to changes, such as in building insulation, the heating/ventilation regime, occupant behaviour, etc. In this way the most effective and widely applicable measures for reducing mite populations can be determined. It is known that temperature and humidity play an important role in house-dust mite physiology and consequently there is considerable interest in reducing mite populations in dwellings by controlling the internal environment. Controlling House Dust Mites through ventilation: the development of a model of mite response to varying hygrothermal conditions www.arct.cam.ac.uk /research/mite   (2947 words)

Physiological effects of alveolar, tracheal, and "standard" pressure supports -- Diehl et al. 87 (1): 428 -- Journal of Applied Physiology PS ventilation is a pressure-targeted mode in which pressure is delivered in a square-wave pattern that begins with the patient's Variability of patient-ventilator interaction with pressure support ventilation in patients with chronic obstructive pulmonary disease. Increased initial flow rate reduces inspiratory work of breathing during pressure support ventilation in patients with exacerbation of chronic obstructive pulmonary disease. www.jap.org /cgi/content/full/87/1/428   (4603 words)

Understanding pulmonary gas exchange: ventilation-perfusion relationships -- West 287 (6): L1071 -- AJP - Lung Cellular and Molecular Physiology Rahn H. A concept of mean alveolar air and the ventilation-bloodflow relationships during pulmonary gas exchange. Ventilation-perfusion inequality and overall gas exchange in computer models of the lung. Riley RL and Cournand A. "Ideal" alveolar air and the analysis of ventilation-perfusion relationships in the lungs. ajplung.physiology.org /cgi/content/full/287/6/L1071   (1032 words)

Physiological effects of alveolar, tracheal, and "standard" pressure supports -- Diehl et al. 87 (1): 428 -- Journal of Applied Physiology Noninvasive ventilation for acute exacerbation of chronic obstructive pulmonary disease. Noninvasive nasal mask ventilation for acute respiratory failure. Cardiorespiratory effects of pressure controlled ventilation with and without inverse ratio in the adult respiratory distress syndrome. www.jap.org /cgi/content/full/87/1/428   (1032 words)

Biology 1221 Anatomy & Physiology II - Chemistry and Biology - Science and Technology - Mount Royal College List several physical factors that influence pulmonary ventilation. mechanics of breathing: pulmonary ventilation, inspiration, expiration, atmospheric pressure, intrapulmonary pressure, intrapleural pressure, transpulmonary pressure, atelectasis, pneumothorax, inspiratory muscles, diaphragm, external intercostals, passive expiration, forced expiration, airway resistance, alveolar surface tension, surfactant, infant respiratory distress syndrome (IRDS), lung compliance Explain the functional importance of the partial vacuum that exists in the intrapleural space. www.mtroyal.ab.ca /scitech/chemistry/bio1221/resp.shtml   (1032 words)

ficben3 DE: photosynthesis-; temperature-; light-; light-intensity; Broadleaves-; Genetics-; genetic-variation; ornamental-plants OD: Ficus-benjamina BT: dicotyledons; angiosperms; Spermatophyta; plants; Ficus; Moraceae; Urticales CC: FF020; FF060; KK100 CD: Plant-Breeding-and-Genetics; Plant-Physiology-and-Biochemistry; Forestry-General PT: Journal-article IS: 0300-3604 UD: 950316 AN: 910301894 CAB Abstracts 1990-1991 9 of 58 TI: Country report: Singapore. DE: pot-plants; production-; cultural-methods; Protected-cultivation; temperature-; ventilation-; Staging-; greenhouses-; heating-systems; ornamental-plants; ornamental-herbaceous-plants OD: Saintpaulia-; Ficus-benjamina BT: plants; ornamental-plants; Spermatophyta; Gesneriaceae; Scrophulariales; dicotyledons; angiosperms; Ficus; Moraceae; Urticales CC: FF100; NN300; NN310 CD: Plant-Production; Farm-and-Horticultural-Structures; Environmental-Control-in-Structures PT: Journal-article IS: 0042-2223 UD: 950316 AN: 910301773 CAB Abstracts 1990-1991 3 of 58 TI: Increasing growth in Ficus benjamina. DE: protected-cultivation; carbon-dioxide; Roses-; responses-; Flowers-; development-; cultural-methods; Flowering-; Growth-; Photosynthesis-; ornamental-plants; ornamental-woody-plants OD: Ficus-benjamina; Rosa- RN: 124-38-9 BT: plants; ornamental-plants; Spermatophyta; Ficus; Moraceae; Urticales; dicotyledons; angiosperms; Rosaceae; Rosales CC: FF060 CD: Plant-Physiology-and-Biochemistry PT: Journal-article IS: 0022-1589 UD: 950316 AN: 910308077 CAB Abstracts 1990-1991 20 of 58 TI: Water and watering of small plants. www.cof.orst.edu /coops/ntc/taiwan/litsearc/ficusben/ficben3   (6878 words)

© The American Physiological Society - John James Rickard Macleod Macleod's publications dealt with a wide range of physiological and biochemical topics, including carbamates, purine metabolism, the breakdown of liver glycogen, intracranial circulation, ventilation, and surgical shock, as well as diabetes, on which he published a book as early as 1913. Macleod's textbook, Physiology and Biochemistry in Modern Medicine (1918), which went through seven editions during his lifetime, was unique in its emphasis on the important role of chemistry in physiology. Macleod was born in Scotland and received his medical training at the University of Aberdeen. www.the-aps.org /about/pres/introjjm.htm   (358 words)

SEB Bulletin She combines techniques from functional morphology, biomechanics and comparative respiratory physiology to study lung ventilation in salamanders and lizards. Beth's interests have now turned towards the mechanics of lung ventilation in amphibians and reptiles, and the evolutionary transition from buccal pump breathing to costal aspiration in tetrapods. These video recordings clearly demonstrate the differences between buccal pumping and aspiration breathing, and they do so in an intuitive manner that is not possible to convey with static pictures or graphs. www.sebiology.org /Bulletin/March1999/agm.htm   (358 words)

From Quackery to Bacteriology, Document 6 She advocated open fireplaces and improved home ventilation, stating the "first and most indispensable requisite for health is pure air, both by day and night." She felt windows should be kept open and bed chambers kept cold to improve resistance to disease. Other advocates for clean air included William Alcott, who wanted to change the architecture of school houses to improve ventilation and add outside playgrounds where students could breathe healthful air. Beecher, Catharine E. Physiology and Calisthenics for Schools and Families. www.cl.utoledo.edu /canaday/quackery/quack6.html   (1231 words)

High tidal volume upregulates intrapulmonary cytokines in an in vivo mouse model of ventilator-induced lung injury -- Wilson et al. 95 (4): 1385 -- Journal of Applied Physiology Ventilation with lower tidal volumes as compared with traditional tidal volumes for acute lung injury and the acute respiratory distress syndrome. Mechanical ventilation affects local and systemic cytokines in an animal model of acute respiratory distress syndrome. High tidal volume upregulates intrapulmonary cytokines in an in vivo mouse model of ventilator-induced lung injury -- Wilson et al. jap.physiology.org /cgi/content/full/95/4/1385   (1231 words)

Division of Pulmonary and Critical Care Medicine - Robertson Robertson HT, Glenny RW, Stanford D, McInnes LM, Luchtel DL, Covert D. High-resolution maps of regional ventilation utilizing inhaled fluorescent microspheres. Thomas Robertson, II, M.D. Professor of Medicine and of Physiology and Biophysics Pulmonary gas exchange during exercise in athletes: I. Ventilation-perfusion mismatch and diffusion limitation. depts.washington.edu /pulmcc/faculty/robertso.htm   (1231 words)

© The American Physiological Society - John James Rickard Macleod Macleod's publications dealt with a wide range of physiological and biochemical topics, including carbamates, purine metabolism, the breakdown of liver glycogen, intracranial circulation, ventilation, and surgical shock, as well as diabetes, on which he published a book as early as 1913. Macleod's textbook, Physiology and Biochemistry in Modern Medicine (1918), which went through seven editions during his lifetime, was unique in its emphasis on the important role of chemistry in physiology. Macleod was born in Scotland and received his medical training at the University of Aberdeen. www.the-aps.org /about/pres/introjjm.htm   (358 words)

Peripheral chemoreflex function in hyperoxia following ventilatory acclimatization to altitude -- Pedersen et al. 89 (1): 291 -- Journal of Applied Physiology Dahan, AD, Ward D, Elsen MVD, Temp J, and Berkenbosch A. Influence of reduced carotid body drive during sustained hypoxia on hypoxic depression of ventilation in humans. Bisgard, GE, Forster HV, Klein JP, Manohar MM, and Bullard VA. Depression of ventilation by dopamine in goats: effects of carotid body excision. www.jap.org /cgi/content/full/89/1/291   (358 words)

1970-79.txt 46 673-690 Reptilia, sauria, Varanus gouldii, Sauromalus hispidus, physiology, blood, oxygen, transport Journal Article Bennett, A.F. 1973 Ventilation in two species of lizards during rest and activity Comp. Seasonal variations Herpetologica 30 3 299-303 reptiles, Iguanidae, hemoglobin, blood, physiology, breeding season, seasonality Journal Article Acuna, M. 1975 The hematology of the tropical lizard Iguana iguana. The present results show that during limb regeneration in the adult newt the carpal elements are restored to their original number and position and that the pattern of such carpal differentiation proceeds in a proximodistal direction influenced by the stump remnants of the radius and ulna. www.herplit.com /herplit/download/1970-79.txt   (358 words)

Chemoreflex Drive and the Dynamics of Ventilation and Gas Exchange during Exercise at Hypoxia -- Fukuoka et al. 168 (9): 1115 -- American Journal of Respiratory and Critical Care Medicine Laboratory of Environmental and Applied Physiology, Faculty of Environmental and Symbiotic Science, Prefectural University of Kumamoto; Laboratory of Muscle Physiology, Faculty of Education, Kumamoto University, Kumamoto; and Institute of Health and Sports Science, Tsukuba University, Tsukuba, Japan Correspondence and requests for reprints should be addressed to Yoshiyuki Fukuoka, Ph.D., Faculty of Environmental and Symbiotic Science, Prefectural University of Kumamoto, 3-1-100 Tsukide, Kumamoto 862–8502, Japan. ajrccm.atsjournals.org /cgi/content/abstract/168/9/1115   (390 words)

Differential effects of mechanical ventilatory strategy on lung injury and systemic organ inflammation in mice -- Gurkan et al. 285 (3): 710 -- AJP - Lung Cellular and Molecular Physiology Ventilation with lower tidal volumes as compared with traditional tidal volumes for acute lung injury and the acute respiratory distress syndrome. Evaluation of a ventilation strategy to prevent barotrauma in patients at high risk for acute respiratory distress syndrome. Assessment of the safety of recombinant tissue factor pathway inhibitor in patients with severe sepsis: a multicenter, randomized, placebo-controlled, single-blind, dose escalation study. ajplung.physiology.org /cgi/content/full/285/3/L710   (390 words)

Regional ventilation-perfusion distribution is more uniform in the prone position -- Mure et al. 88 (3): 1076 -- Journal of Applied Physiology Tomography of regional ventilation and perfusion using krypton 81m in normal subjects and asthmatic patients. Distribution of pulmonary ventilation and perfusion measured simultaneously in awake goats. Pulmonary perfusion is more uniform in the prone than in the supine position: scintigraphy in healthy humans. www.jap.org /cgi/content/full/88/3/1076   (3520 words)

Physiology 310 Given a person who has a tidal volume of 450 ml, an anatomic dead space of 100 ml, and a breathing rate of 12 breaths per minute, calculate the alveolar ventilation rate. If the rate of alveolar ventilation rate is increased the partial pressures of oxygen (P.O2) and carbon dioxide (P.CO2) in the alveolus will change in which of the following ways? The volume of air that remains in the lungs after a maximal expiration is called the: www.siumed.edu /~dwade/phys310/RsLungVol.html   (249 words)

Crocker Crocker, C.E., Graham, T.E., Ultsch, G.R., and Jackson, D.C. Physiology of common map turtles (Graptemys geographica) hibernating in the Lamoille River, VT. Journal of Experimental Zoology. Crocker, C.E. and Cech, J.J. The effects of dissolved gases on oxygen consumption rate and ventilation frequency in white sturgeon, Acipenser transmontanus. Reese SA, Crocker CE, Jackson DC, and Ultsch, G.R. The physiology of hibernation among painted turtles: the midland www.sfsu.edu /~biology/pages/gpages/crockerg.html   (831 words)

A synthetic surfactant based on a poly-Leu SP-C analog and phospholipids: effects on tidal volumes and lung gas volumes in ventilated immature newborn rabbits -- Johansson et al. 95 (5): 2055 -- Journal of Applied Physiology Nilsson R, Grossmann G, and Robertson B. Bronchiolar epithelial lesions induced by short periods of artificial ventilation. Nilsson R, Grossmann G, and Robertson B. Pathogenesis of neonatal lung lesions induced by artificial ventilation: evidence against the role of barotrauma. Robertson B and Lachmann B. Experimental evaluation of surfactants for replacement therapy. jap.physiology.org /cgi/content/full/95/5/2055   (831 words)

Phasic mechanoreceptor stimuli can induce phasic activation of upper airway muscles in humans -- Akahoshi et al. 531 (3): 677 -- The Journal of Physiology Online In each subject, peak negative epiglottic pressure was highly correlated with peak phasic GG activation during all conditions (eucapnic spontaneous breathing; medium and high level negative pressure ventilation; hypocapnia and eucapnia; slow and rapid breathing frequencies). We found that a mechanoreceptive reflex is still present at normal breathing rates, and that the timing and magnitude of this reflex is adequate to account for the GG activity that occurs throughout normal breathing, stimulated breathing and all conditions of mechanical ventilation used. In all instances the correlation between epiglottic negative pressure and GG EMG improved and the early inspiratory slope increased (which is predictable from observation of the loops). jp.physoc.org /cgi/content/full/531/3/677   (7059 words)

Board Review Questions is used, not the PO Choice B is incorrect because the physiological dead space contains the anatomic dead space, and may be substantially larger if there is inequality of ventilation and blood flow within the lung. For clarification or other questions contact Steve Wood, Dept. of Physiology; If a person suffered a stab injury and air entered the intrapleural space (pneumothorax), the most likely response would be for the www.ecu.edu /physio/cardvasc.htm   (7059 words)

RESPIRATION PHYSIOLOGY: VENTILATION -- Sequence for Air Movement RESPIRATION PHYSIOLOGY: VENTILATION -- Sequence for Air Movement Note: In pneumothorax (admission of air into the intrapleural space), pressure transmission is attenuated or ineffective Transmission of pressure change through the intrapleural space www.acbrown.com /lung/Lectures/RsVntl/RsVntlSqnc.htm   (7059 words)

Liquid Ventilation Physiology and clinical role of liquid ventilation therapy. Pneumomediastinum: elucidation of the anatomic pathway by liquid ventilation. Liquid ventilation in premature lambs: uptake, biodistribution and elimination of perfluorodecalin liquid. www.umdnj.edu /rspthweb/bibs/lquidven.htm   (2131 words)

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