Development of the lung of the brushtail possum, <i>Trichosurus vulpecula</i>

Cooke, M.M.; Alley, M.R.

doi:10.1046/j.0021-8782.2001.00019.x

Cited by 9 publications

(19 citation statements)

References 27 publications

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“…The bronchial cartilages of the grey short‐tailed opossum only surround the extrapulmonary portion of the principal bronchi. This differs from the ring‐like bronchial cartilages in the domestic carnivores (Getty, 1975) but is similar to the brushtail possum (Cooke and Alley, 2002).…”

Section: Discussionmentioning

confidence: 66%

“…The principal bronchi of the grey short‐tailed opossum were divided into an extrapulmonary and intrapulmonary portion followed by branching into secondary and tertiary bronchi. This division of the bronchial tree differs from that of the brushtail possum (Cooke and Alley, 2002) in which a recent description indicated, ‘the lung parenchyma within each lobe of the brushtail possum was found to be supplied by major bronchioles, and there were no true bronchi within the lung’.…”

Section: Discussionmentioning

confidence: 71%

“…The columnar and basal cells of the principal bronchial epithelium are similar to those found in the bronchi of the brushtail possum and in the tracheobronchial tree of domestic carnivores (Banks, 1993; Dellmann and Eurell, 1998). However, the goblet cells described in the bronchi of domestic carnivores are not observed in the principal bronchi of the grey short‐tailed opossum while they are rarely present in the North American opossum (Krause and Leeson, 1973, 1975) and the brushtail possum (Cooke and Alley, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…In contrast, in the North American opossum, Krause and Leeson (1973, 1975) classified the tracheal and bronchial epithelium as simple columnar with scattered patches of cilia only on columnar cells covering the tracheal cartilages. In the brushtail possum (Cooke and Alley, 2002), the tracheal epithelium was not described, but the epithelium of the primary and secondary bronchi was identical to that of the grey short‐tailed opossum and devoid of cilia similar to the North American opossum.…”

Section: Discussionmentioning

confidence: 99%

“…However, publications on this area in non‐placental mammals have been limited to eight articles during the past century. With only four species, the brushtail possum ( Trichosurus vulpecula ) (Cooke and Alley, 2002), North American opossum ( Didelphis virgianana ) (Bremer, 1904; Sorokin, 1962, 1965b; Krause and Leeson, 1973, 1975; Krause et al., 1976; Krause, 1992), koala ( Phascolarctos cinereus ) and phalanger ( T. vulpecula ) (Tucker, 1974 and Krause, 2010) having selected regions or components of the lower respiratory tract described. It is only recently that the microscopic anatomy of non‐placental animals has received renewed interest (Krause, 2010, 2011a,b).…”

Section: Introductionmentioning

confidence: 99%

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Microscopic Anatomy of the Lower Respiratory Tract of the Grey Short‐Tailed Opossum (Monodelphis domestica)

Cope

Henry

Reed

2011

Anat Histol Embryol

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The respiratory tracts of seven grey short-tailed opossums were histologically examined. Six opossums were prepared by perfusion with buffered formalin. Opossum seven was perfused with gluteraldehyde. Samples taken from the respiratory passages and lungs of specimens 1-6 were stained with haematoxylin and eosin. A mixture of methylene and azure blue was used for specimen 7. The trachea and right and left principal bronchi are lined with a pseudostratified ciliated columnar epithelium with occasional goblet cells. The secondary and tertiary bronchi and the primary and secondary bronchioles are lined by a simple ciliated columnar epithelium. The terminal bronchioles and a portion of the respiratory bronchioles are lined by a simple ciliated cuboidal epithelium. The terminal portion of the respiratory bronchioles and the alveolar ducts are lined with simple squamous epithelium. Alveoli are lined by type I and II pneumocytes. Tracheal glands are present in the tela submucosa. The fibromusculocartilaginous tunic of the trachea consists of c-shaped cartilage rings and the trachealis muscle. A lamina muscularis mucosa begins in the intrapulmonary portion of the principal bronchus and continues into the respiratory bronchioles. Bronchial glands are present in the propria submucosa and tela submucosa of the principal bronchi. The musculocartilaginous tunic is localized to the extrapulmonary portion of the principal bronchus. The bronchial cartilages are irregular shaped plates and limited to the extrapulmonary portion of the principal bronchus. The visceral pleura is a simple squamous mesothelium covering the outer surface of the lung.

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Section: Discussionmentioning

confidence: 66%

Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microscopic Anatomy of the Lower Respiratory Tract of the Grey Short‐Tailed Opossum (Monodelphis domestica)

Cope

Henry

Reed

2011

Anat Histol Embryol

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Development of the pulmonary vasculature in the gray short‐tailed opossum (Monodelphis domestica)—3D reconstruction by microcomputed tomography

Ferner

2024

The Anatomical Record

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In the marsupial gray short‐tailed opossum (Monodelphis domestica), the majority of lung development, including the maturation of pulmonary vasculature, takes place in ventilated functioning state during the postnatal period. The current study uses X‐ray computed tomography (μCT) to three‐dimensionally reconstruct the vascular trees of the pulmonary artery and pulmonary vein in 15 animals from neonate to postnatal day 57. The final 3D reconstructions of the pulmonary artery and pulmonary vein in the neonate and at 21, 35, and 57 dpn were transformed into a centerline model of the vascular trees. Based on the reconstructions, the generation of end‐branching vessels, the median and maximum generation, and the number of vessels were calculated for the lungs. The pulmonary vasculature follows the lung anatomy with six pulmonary lobes indicated by the bronchial tree. The pulmonary arteries follow the bronchial tree closely, in contrast to the pulmonary veins, which run between the pulmonary segments. At birth the pulmonary vasculature has a simple branching pattern with a few vessel generations. Compared with the bronchial tree, the pulmonary vasculature appears to be more developed and extends to the large terminal air spaces. The pulmonary vasculature shows a marked gain in volume and a progressive increase in vascular complexity and density. The gray short‐tailed opossum resembles the assumed mammalian ancestor and is suitable to inform on the evolution of the mammalian lung. Vascular genesis in the marsupial bears resemblance to developmental patterns described in eutherians. Lung development in general seems to be highly conservative within mammalian evolution.

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The Immune System of Monotremes and Marsupials

Peel

Belov

2016

Encyclopedia of Immunobiology

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Development of the lung of the brushtail possum, Trichosurus vulpecula

Cited by 9 publications

References 27 publications

Microscopic Anatomy of the Lower Respiratory Tract of the Grey Short‐Tailed Opossum (Monodelphis domestica)

Microscopic Anatomy of the Lower Respiratory Tract of the Grey Short‐Tailed Opossum (Monodelphis domestica)

Development of the pulmonary vasculature in the gray short‐tailed opossum (Monodelphis domestica)—3D reconstruction by microcomputed tomography

The Immune System of Monotremes and Marsupials

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