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Keywords: lung
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Journal Articles
J Exp Biol (2020) 223 (19): jeb226076.
Published: 09 October 2020
... and tissue replacement in the gills remain poorly understood. By contrast, the mammalian lung is a largely quiescent organ in adults but is capable of facultative regeneration following injury. In the course of the past decade, it has been recognized that lungs contain a population of stem or progenitor...
Journal Articles
J Exp Biol (2019) 222 (10): jeb197970.
Published: 16 May 2019
... or partially under hypoxia (15% O 2 during days 12 to 18). Lung structures, including air capillaries, blood capillaries, infundibula, atria, parabronchial lumen, bronchi, blood vessels larger than capillaries and interparabronchial tissue, in 1- and 10-day-old chicks were analyzed using light microscopy...
Journal Articles
J Exp Biol (2015) 218 (5): 720–730.
Published: 01 March 2015
... computerized tomographic (CT) scans of live penguins were utilized to measure lung volumes, air sac volumes, tracheobronchial volumes and total body volumes at different inflation pressures in three species with different dive capacities [Adélie ( Pygoscelis adeliae ), king ( Aptenodytes patagonicus...
Journal Articles
J Exp Biol (2013) 216 (2): 171–180.
Published: 15 January 2013
...Suzanne L. Munns SUMMARY High gestational loads result in fetuses that occupy a large proportion of the body cavity and may compress maternal organs. Compression of the lungs results in alterations in breathing patterns during gestation, which may affect the energetic cost of breathing...
Journal Articles
J Exp Biol (2011) 214 (8): 1276–1282.
Published: 15 April 2011
... of metabolism and body temperature (arousal). Remarkably, the repetitive stress of cooling–rewarming and hypoxia does not cause irreversible organ damage. To identify adaptive mechanisms protecting the lungs, we assessed histological changes as well as the expression and localization of proteins involved...
Journal Articles
J Exp Biol (2008) 211 (7): 1141–1147.
Published: 01 April 2008
... and the gastralia caudoventrad while the diaphragmaticus muscle pulls the liver–lung complex caudad ( Farmer and Carrier, 2000a ; Gans and Clark, 1976 ). The rectus abdominis and transversus abdominis contract during exhalation to squeeze the liver and other viscera craniad( Farmer and Carrier, 2000a ; Gans, 1976...
Journal Articles
J Exp Biol (2007) 210 (11): 1944–1959.
Published: 01 June 2007
... for metabolic acid–base disturbances, a mechanism that is not employed by water-breathing fish. Like fish and amphibians, however, extra-renal routes play a key role in metabolic compensation. acid–base balance ventilation lung gill kidney acidosis alkalosis African lungfish Protopterus annectens...
Journal Articles
J Exp Biol (2005) 208 (19): 3805–3815.
Published: 01 October 2005
...) activity on pulmonary and branchial/cutaneous gas transfer. In contrast to previous studies on Protopterus , which showed that the vast majority of CO 2 is excreted into the water through the gill and/or skin whereas O 2 uptake largely occurs via the lung, P. dolloi appeared to use the lung for the bulk...
Journal Articles
J Exp Biol (2004) 207 (15): 2663–2669.
Published: 01 July 2004
...Roger S. Seymour; Sue Runciman; Russell V. Baudinette; James T. Pearson SUMMARY Quantitative methods have been used to correlate maximal oxygen uptake with lung development in Australian pelicans. These birds produce the largest altricial neonates and become some of the largest birds capable...
Journal Articles
J Exp Biol (2002) 205 (3): 415–425.
Published: 01 February 2002
...Sonya D. Johnston; Christopher B. Daniels; David Cenzato; Jeffrey A. Whitsett; Sandra Orgeig SUMMARY Pulmonary surfactant (PS), a mixture of phospholipids (PL), neutral lipids and surfactant proteins (SP), lowers surface tension within the lung, which increases lung compliance and improves...
Journal Articles
J Exp Biol (2001) 204 (23): 4031–4042.
Published: 01 December 2001
.... This study correlates the presence of surfactant proteins (SP-A, SP-B and SP-D), using immunohistochemistry, with the ex-utero development of the lung in the tammar wallaby Macropus eugenii and also investigates the control of phosphatidylcholine (PC) secretion from developing alveolar type II cells. All...
Journal Articles
J Exp Biol (2001) 204 (13): 2313–2330.
Published: 01 July 2001
...John N. Maina; Christopher Nathaniel SUMMARY The ostrich lung, with its lack of interparabronchial septa, the presence of very shallow atria and exceptional morphometric refinement, structurally resembles those of small, energetic flying birds, whereas it also displays features characteristic...
Journal Articles
J Exp Biol (1992) 163 (1): 333–344.
Published: 01 February 1992
... chambers are air-filled and function as lungs. The deep vascular parenchyma lining the upper gill chambers, or lungs, is penetrated by a regular series of fine branching airways. Scanning electron micrographs of lung architecture are shown. Measurements relating to lung structure were made on plastic casts...
Journal Articles
J Exp Biol (1992) 163 (1): 297–316.
Published: 01 February 1992
... sinuses. These pressure pulses help drive hemolymph through the lungs. The coupled SG reversed ventilation and DVM-assisted increases in lung perfusion appear to be an adaptation to increase gas exchange at the lungs. When crabs are made hyper- or hypotensive by changes in hemolymph volume, the EMG...
Journal Articles
J Exp Biol (1987) 131 (1): 365–372.
Published: 01 September 1987
...M. E. LUTCAVAGE; P. L. LUTZ; H. BAIER Pulmonary CO diffusion capacity (DL CO ), lung volume (VL), oxygen uptake (V o 2 ) and pulmonary blood flow (QL) were measured simultaneously in the loggerhead sea turtle Caretta caretta (Linnaeus) (8–11 kg) using a gas rebreathing technique (syringe pump...