Adaptation to Altitude-Hypoxia in Vertebrates by Prof. Pierre Bouverot (auth.) PDF

By Prof. Pierre Bouverot (auth.)

ISBN-10: 3642823165

ISBN-13: 9783642823169

ISBN-10: 3642823181

ISBN-13: 9783642823183

Adaptation to altitude hypoxia is characterised through a range offunctional alterations which jointly facilitate oxygen trans­ port from the ambient medium to the cells of the physique. All of those alterations should be visible at one time or one other during hypoxic publicity. but, as already under pressure (Hannon and Vogel, 1977), an exam of the literature provides just a sketchy and infrequently conflicting photo of the precise nature of those alterations and the way they have interaction as a functionality of publicity length. this can be in part as a result of constrained variety of variables explored in a given examine, however it is usually as a result of ameliorations in experimental layout, alterations between species in susceptibility to hypoxia, nonstandardized experimental stipulations, loss of right regulate of actual (e. g. , temperature) and physiological variables (e. g. , physique mass), failure to take measurements at key classes of publicity, and gaps in wisdom approximately a few primary mechanisms. moreover the to be had info on animals local to excessive altitude are meager and/or inconclusive. vast additional paintings lower than well-controlled experimental stipulations is needed earlier than a close photograph could be made. however, it's been a guideline within the prepara­ tion of this monograph really to summarize the enormously dis­ persed fabric that constitutes the comparative body structure of version to excessive altitude right into a coherent photograph, than to supply a finished survey of the field.

Show description

Read or Download Adaptation to Altitude-Hypoxia in Vertebrates PDF

Best anatomy & physiology books

Histology: A Text and Atlas (6th Edition) by Michael H. Ross, Wojciech Pawlina PDF

Now in its revised, up to date 6th variation, Histology: A textual content and Atlas is perfect for clinical, well-being professions, and undergraduate biology scholars. This best-selling blend textual content and atlas features a certain textbook description that emphasizes medical and useful correlates of histology, absolutely supplemented by means of vividly informative illustrations and pictures. Separate, beautifully illustrated atlas sections stick to nearly each bankruptcy and have large-size, full-color electronic micrographs, with labels and legends that spotlight info of microanatomy.

For this variation, nearly 20 percentage of the micrographs were changed with newly more suitable, sharper photographs. One 3rd of the illustrations were redrawn in a brand new style.

A robust on-line interactive atlas is incorporated with the ebook and contours all the plates within the textual content with interactive functionality.

Altered Egos How the Brain Creates the Self - download pdf or read online

It can be the private secret of philosophy, psychology, and neuroscience: how does the mind unite to create the self, the subjective "I"? In Altered Egos, Dr. Todd Feinberg provides a brand new concept of the self, in response to his first-hand event as either a psychiatrist and neurologist. Feinberg first introduces the reader to dozens of interesting instances of sufferers whose problems have led to what he calls "altered egos": a metamorphosis within the mind that transforms the limits of the self.

Read e-book online Breeding for Disease Resistance in Farm Animals PDF

This re-creation presents an up to date overview of the rules of animal breeding for complicated healthiness and ailment resistance. Authored by way of specialists, it makes use of examples overlaying many ailments of significance to farm animals construction throughout all significant farm animals species. subject matters contain strategies and techniques, viruses, Transmissible Spongiform Encephalopathies (TSEs), micro organism, parasites, vectors, and broader well-being concerns obvious in construction platforms, together with metabolic illnesses.

Download PDF by John S. Werner, Werner G. Backhaus, Reinhold Kliegl: Color vision : perspectives from different disciplines

This publication stories the present country of colour imaginative and prescient study as obvious from diversified disciplines of colour technological know-how corresponding to neurobiology, neuroethology, molecular genetics, drugs, psychology, colour metrics and dimension, philosophy, and paintings. The booklet is an introductory textual content for graduate scholars in addition to for specialists who would favor an summary of the state-of-the-art in comparable parts of colour imaginative and prescient learn

Additional info for Adaptation to Altitude-Hypoxia in Vertebrates

Example text

It is not possible to make a direct comparison of the ventilatory flow rate, Y, among animals without taking into account the intensity of the O 2 consumption, M 02 , which vari~s ~ith species, size at;ld activity. A valid comparison can be made, using the ratio VjM 02 ' which is the M02-specific ventilation, or the convection requirement of air or water per unit of oxygen uptake. This ratio, sometimes called respiratory equivalent, designates the volume of medium which must be passed over the gas-exchange surface to effect delivery of a unit quantity of oxygen.

5) At given partial pressure of inspired O 2 (pino ), hence elevation, Eq. 5) states that the lower the O 2 extraction coefficient (E02 ; hence the greater the specific ventilation), the higher the O 2 pressure head at the gas-exchange surface, at least in so far as Pout02 can be considered as a valid index of that O 2 pressure head. In air-breathers, such a valid index can easily be taken from the P02 value in the gas vented from the lungs in late expiration, after the dead space has been washed out (end-tidal, or alveolar gas; Chap.

1976). These breathby-breath ventilatory oscillations appear to be affected differently in the various phases of high-altitude exposure, with more dramatic effects during sleep (Sect. 3). They may be less consistently noted in chronic than in acute hypoxic exposure (Brusil et al. 1980). 2 The control of breathing yields a given combination of amplitude (VT) and period (T), which results from the activity of a functional unit, the ventilatory neuromechanical system, organized in a feedback loop: the so-called respiratory centers and the ventilatory pump, interconnected by motor pathways and by sensory afferent pathways from specific receptors in the ventilatory apparatus.

Download PDF sample

Adaptation to Altitude-Hypoxia in Vertebrates by Prof. Pierre Bouverot (auth.)


by Ronald
4.4

Rated 4.65 of 5 – based on 49 votes