Author: John Wilkinson (Surgeon.)
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Roland N. Pittman
Publisher: Biota Publishing
ISBN: 1615047212
Category : Medical
Languages : en
Pages : 117

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This presentation describes various aspects of the regulation of tissue oxygenation, including the roles of the circulatory system, respiratory system, and blood, the carrier of oxygen within these components of the cardiorespiratory system. The respiratory system takes oxygen from the atmosphere and transports it by diffusion from the air in the alveoli to the blood flowing through the pulmonary capillaries. The cardiovascular system then moves the oxygenated blood from the heart to the microcirculation of the various organs by convection, where oxygen is released from hemoglobin in the red blood cells and moves to the parenchymal cells of each tissue by diffusion. Oxygen that has diffused into cells is then utilized in the mitochondria to produce adenosine triphosphate (ATP), the energy currency of all cells. The mitochondria are able to produce ATP until the oxygen tension or PO2 on the cell surface falls to a critical level of about 4–5 mm Hg. Thus, in order to meet the energetic needs of cells, it is important to maintain a continuous supply of oxygen to the mitochondria at or above the critical PO2 . In order to accomplish this desired outcome, the cardiorespiratory system, including the blood, must be capable of regulation to ensure survival of all tissues under a wide range of circumstances. The purpose of this presentation is to provide basic information about the operation and regulation of the cardiovascular and respiratory systems, as well as the properties of the blood and parenchymal cells, so that a fundamental understanding of the regulation of tissue oxygenation is achieved.

Author: Thomas Shapter
Publisher:
ISBN:
Category : Heart
Languages : en
Pages : 288

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Author: Thomas SHAPTER (M.D., of Exeter.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 286

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Author: Allan Burns
Publisher:
ISBN:
Category : Aneurysms
Languages : en
Pages : 338

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First edition of the author's original investigation of coronary circulation. "Burns described endocarditis and report three cases of mitral stenosis. He recognized the trill present in the latter condition and seems to have understood the mechanism of a cardiac murmur. He also described unilateral paralysis of the diaphragm resulting from pressure on the phrenic nerve by a thoracic aneurysm. Burns (1781-1813) "was an original investigator and man who fearlessly rejection traditional authority" (Fishman & Richards, Circulation of the Blood , p. 222-23). Empress Catherine of Russia invited him to St. Petersburg as director and surgeon of a hospital. -- B & L Rootenberg, 1987.

Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 030915698X
Category : Medical
Languages : en
Pages : 304

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The Social Security Administration (SSA) uses a screening tool called the Listing of Impairments to identify claimants who are so severely impaired that they cannot work at all and thus immediately qualify for benefits. In this report, the IOM makes several recommendations for improving SSA's capacity to determine disability benefits more quickly and efficiently using the Listings.

Author: United States. Public Health Service. Office of the Surgeon General
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 728

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This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.

Author: James WARDROP (F.R.S. Edin.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 160

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Author: Thomas Shapter
Publisher: BoD – Books on Demand
ISBN: 3382505436
Category : Fiction
Languages : en
Pages : 286

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Reprint of the original, first published in 1874. The publishing house Anatiposi publishes historical books as reprints. Due to their age, these books may have missing pages or inferior quality. Our aim is to preserve these books and make them available to the public so that they do not get lost.

Author: John Marie Keating
Publisher:
ISBN:
Category :
Languages : en
Pages : 336

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