Spleen of Dasypus hybridus (Mammalia, Dasypodidae): A light and electron microscopic study

Galíndez, Elena Juana; Codón, Stella Maris; Casanave, Emma Beatriz

doi:10.1002/(sici)1097-0185(20000301)258:3<286::aid-ar8>3.3.co;2-g

Cited by 4 publications

(4 citation statements)

References 15 publications

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“…This fact agrees with the splenic structure observed in D. novemcinctus (Hayes, 1970) and D. hybridus (Galíndez et al, 2000) and differs from the observed in Z. pichiy, which shows isolated smooth muscle cells and myofibroblasts interposed between filtrant beds (Galíndez et al, 2003). An indirect proof of adaptive remodelling of the splenic microarchitecture in armadillos, is the fact that new-borns of C. villosus, have a myeloid spleen without trabeculae .…”

Section: Discussionsupporting

confidence: 87%

“…The intermediate zone has narrow borders than the other studied Euphractini (Galíndez et al, , 2000(Galíndez et al, , 2003, and differs from rabbits and rodents (Blue & Weiss, 1981). The presence of macrophages Perls (+), ellipsoids and a discrete amount of vasculature, make this structure very similar to that present in the ancestral group Insectivora (Tanaka, 1990) and is, probably, the place for blood clearance.…”

Section: Discussionmentioning

confidence: 87%

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The Spleen of a Specialy Adapted Mammal: The Little Hairy Armadillo Chaetophractus vellerosus, (Xenarthra, Dasypodidae). A Light and Electron Microscopic Study

2006

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The spleen of a specialy adapted mammal: The little hairy armadillo Chaetophractus vellerosus, (Xenarthra, Dasypodidae). A Light and electron microscopic study. Int. J. Morphol., 24(3):339-348, 2006. SUMMARY:The spleen is a multifunctional organ. Its microarchitecture reflects so well the phylogeny as the adaptation to niche in each animal group and inclusive in each species.Armadillos, as ancient and isolated mammals, show a mixture of ancestral and modern structures. In this work the microanatomy and cytology of the spleen of the little hairy armadillo Chaetophractus vellerosus was studied. The material was fixed and processed according to the typical methods for light and electron microscopy.Results show a cumulative medium sized spleen with the typical pulps. The white pulp is well developed but less defined than in other armadillos. The presence of follicular-dendritic-like cells and interdigitant dendritic-like cells, as well as clusters of immunocompetent cells agrees with an active immunological activity. The red pulp is a meshwork of circulatory spaces and cells. The presence of splenic sinusoids is recognized for the first time in the genus. Hemopoietic tissue is less developed than in other Euphractini. The microarchitecture and size of the spleen of C. vellerosus is discussed in a phylogenetic and adaptive context.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 87%

The Spleen of a Specialy Adapted Mammal: The Little Hairy Armadillo Chaetophractus vellerosus, (Xenarthra, Dasypodidae). A Light and Electron Microscopic Study

2006

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“…The sinusal type of spleens was reported in rats, humans and dogs (Press & Landsverk, ; Udroiu, ; Ward et al, ). Mice along with various mammals such as horses, cows, cats, pigs and armadillos were classified to have the non‐sinusal type of spleen (Bacha & Bacha, ; Galíndez, Codón, & Casanave, ; Press & Landsverk, ; Snook, ; Ward et al, ).…”

Section: Discussionmentioning

confidence: 99%

The spleen morphophysiology of fruit bats

Hanadhita

Rahma

Prawira

et al. 2019

Anat Histol Embryol

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Spleen is one of the important lymphoid organs with wide variations of morphological and physiological functions according to species. Morphology and function of the spleen in bats, which are hosts to several viral strains without exhibiting clinical symptoms, remain to be fully elucidated. This study aims to examine the spleen morphology of fruit bats associated with their physiological functions. Spleen histological observations were performed in three fruit bats species: Cynopterus titthaecheilus (n = 9), Rousettus leschenaultii (n = 3) and Pteropus vampyrus (n = 3). The spleens of these fruit bats were surrounded by a thin capsule. Red pulp consisted of splenic cord and wide vascular space filled with blood. Ellipsoids in all three studied species were found numerously and adjacent to one another forming macrophages aggregates. White pulp consisted of periarteriolar lymphoid sheaths (PALS), lymphoid follicles and marginal zone. The lymphoid follicle contained a germinal centre and a tingible body macrophage that might reflect an active immune system. The marginal zone was prominent and well developed. This study reports some differences in spleen structure of fruit bats compared to other bat species previously reported and discusses possible physiological implications of the spleen based on its morphology. K E Y W O R D S flying foxes, histology, immunology, morphology, physiology, viral reservoir

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“…That the originator bacillus is genetically identical to the human bacillus (Opromolla et al, 1980;Meier et al, 1983). The armadillos show adaptive and primitive characteristics in both anatomical and physiological aspects (Galíndez et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Morphological Study of the Cervical Salivary Glands in the Nine-Banded Armadillo

Schimming

2009

Int. J. Morphol.

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The cervical salivary glands of the armadillo Dasypus novemcinctus was examined by light microscopy. These glands are situated on either side of the neck, divide in lobes and show a presence of a salivary bladder, associated with the main ducts of the gland. This gland is histologically a typical mixed glands, containing both mucous and serous elements, with mucous acini as the predominant secretory unit. The bladder itself is composed of a wall made up of pseudostratified epithelium, skeletal muscle and connective tissue. In general, the morphology of the cervical salivary glands appears similar to that described in other species of the mammals.

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Spleen of Dasypus hybridus (Mammalia, Dasypodidae): A light and electron microscopic study

Cited by 4 publications

References 15 publications

The Spleen of a Specialy Adapted Mammal: The Little Hairy Armadillo Chaetophractus vellerosus, (Xenarthra, Dasypodidae). A Light and Electron Microscopic Study

The Spleen of a Specialy Adapted Mammal: The Little Hairy Armadillo Chaetophractus vellerosus, (Xenarthra, Dasypodidae). A Light and Electron Microscopic Study

The spleen morphophysiology of fruit bats

Morphological Study of the Cervical Salivary Glands in the Nine-Banded Armadillo

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