Respiratory function and mechanics in pinnipeds and cetaceans

The Journal of Experimental Biology
Andreas FahlmanDaniel Garcia-Parraga

Abstract

In this Review, we focus on the functional properties of the respiratory system of pinnipeds and cetaceans, and briefly summarize the underlying anatomy; in doing so, we provide an overview of what is currently known about their respiratory physiology and mechanics. While exposure to high pressure is a common challenge among breath-hold divers, there is a large variation in respiratory anatomy, function and capacity between species - how are these traits adapted to allow the animals to withstand the physiological challenges faced during dives? The ultra-deep diving feats of some marine mammals defy our current understanding of respiratory physiology and lung mechanics. These animals cope daily with lung compression, alveolar collapse, transient hyperoxia and extreme hypoxia. By improving our understanding of respiratory physiology under these conditions, we will be better able to define the physiological constraints imposed on these animals, and how these limitations may affect the survival of marine mammals in a changing environment. Many of the respiratory traits to survive exposure to an extreme environment may inspire novel treatments for a variety of respiratory problems in humans.

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Citations

Oct 24, 2018·The Journal of Experimental Biology·Daniel García-PárragaAndreas Fahlman
Jan 25, 2020·The Journal of Experimental Biology·Kelsey N GilRobert E Shadwick
Feb 27, 2020·The Journal of Experimental Biology·Birgitte I McDonaldPaul J Ponganis
Jul 19, 2020·The Journal of Experimental Biology·Andreas FahlmanAshley Blawas
Mar 21, 2020·Frontiers in Physiology·Andreas FahlmanJulie Rocho-Levine
Jun 27, 2020·The Journal of Experimental Biology·Andreas FahlmanPatrick Miller
Jun 24, 2018·The Journal of Experimental Biology·Arnoldus Schytte Blix
Jun 20, 2019·Frontiers in Physiology·Michael S Tift, Paul J Ponganis
Aug 21, 2020·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Laura A ThompsonTracy A Romano
Apr 27, 2018·Proceedings. Biological Sciences·Daniel Garcia PárragaAndreas Fahlman
Sep 9, 2020·The Journal of Experimental Biology·Arlo AdamsStacey A Skoretz
Nov 15, 2020·The Journal of Experimental Biology·Alicia Borque-EspinosaAndreas Fahlman
Nov 6, 2018·Respiratory Physiology & Neurobiology·Andreas FahlmanMicah Brodsky
Apr 9, 2021·Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians·Andreas FahlmanJoan Rocabert
Jun 15, 2021·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Sascha K HookerJ Chris McKnight

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