Scanning electron microscopic studies on the microvascular system of the spleen in the rat, cat, dog, pig, horse and cow.

Seki, Azusa; Abe, Mitsuo

doi:10.1292/jvms1939.47.237

Cited by 13 publications

(19 citation statements)

References 29 publications

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“…Mice, rats and rabbits lack sheathed arteries (Snook, 1950). The diameter of the PAMS has been determined in several animals (Seki & Abe, 1985). The splenic circulation may be open (Thomas, 1967 ;Fukuta et al 1976 ;Irino et al 1977 ;Blue & Weiss, 1981a), closed (Simon, 1970Murkami et al 1973) or a combination of both (Barnhart et al 1976 ;Chen, 1978).…”

Section: mentioning

confidence: 99%

“…It is ellipsoid shape in the dog (Jacobsen, 1971). The PAMS of the camel (42p8 µm) was smaller than that of the pig (60-90 µm), similar to that of the horse (40-60 µm) and larger than that of the dog, cat (30-40 µm) and cow ( 30 µm) (Seki & Abe, 1985) and also man (20-30 µm) (Raviola, 1994). There is no PAMS in rats, rabbits or mice (Snook, 1950).…”

Section: mentioning

confidence: 99%

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The spleen of the one humped camel (Camelus dromedarius) has a unique histological structure

et al. 2000

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The histology and structure of 38 spleens of the dromedary (aged 0n5-15 y) were studied in relation to age. The spleen was found to have a thick capsule (292p106 mm) divided into an outer layer (113p39 mm) composed mainly of connective tissue and an inner layer (180p81 mm) consisting mainly of smooth muscle cells. Vascular and avascular trabeculae extend from the capsule, the former containing arteries and nerves but no trabecular veins, the latter being divided structurally into primary and secondary trabeculae. Subcapsular and peritrabecular blood sinuses around primary and vascular trabeculae are unique to the camel spleen. The central artery emerges from the periarterial lymphatic sheath and branches into up to 4 penicilli which extend as sheathed arterioles (42p8 µm). These are found near or surrounded by blood sinusoids of the red pulp. A wide marginal zone surrounds the white pulp and contains sheathed arteries but no marginal sinuses. The red pulp is characteristically divided into cords by secondary trabeculae and contains venous sinusoids of different sizes. The camel spleen is of a sinusal type that can store blood. The thick muscular capsule and trabeculae pump the stored blood according to the body's need. Both closed and open circulations are found. The venous return is unique as the blood flow is from the venous sinusoids of the red pulp to the peritrabecular sinuses to the subcapsular sinuses to the splenic vein. No significant structural differences related to age were found.

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Section: mentioning

confidence: 99%

Section: mentioning

confidence: 99%

The spleen of the one humped camel (Camelus dromedarius) has a unique histological structure

et al. 2000

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“…Apart from the external gross morphology, the histology and function of the equine spleen is very similar to that of the cat, although the storing capacity is greater (Tablin & Weiss, 1983;Seki & Abe, 1985). Also, a qualitative difference occurs between the equine and carnivoran spleen.…”

Section: Ion Udroiumentioning

confidence: 90%

“…The inner layer is thick and collagenous, comprised of elastic fibers and leiomyocytes. Concerning Artiodactyla, detailed description are available for the spleen of Alces alces (Blumenthal, 1952), Cervus elaphus, Capreolus capreolus (Hartwig & Hartwig, 1975), Bos taurus (Seki & Abe, 1985), Bubalus bubalis (Mishra & Verma, 2004), Ovis aries, Capra hircus (Tischendorf, 1969), Camelus dromedarius (Zidan et al, 2000), Camelus bactrianus (Abe et al, 1999), Hippopotamus amphibius (Tischendorf, 1958) and Sus scrofa (Seki & Abe, 1985). In Artiodactyla, but also in Elephas maximus (Tischendorf, 1953), the spleen is covered by a bilayered capsule like in Equus.…”

Section: Ion Udroiumentioning

confidence: 99%

“…The morphology of the spleen has been studied in Felis silvestris (Seki & Abe, 1985), Panthera leo (Tischendorf, 1956), Canis lupus (Seki & Abe, 1985;Alexandre-Pires et al, 2003), Ursus thibetanus (Zhang et al, 1997), Procyon lotor (Hayes & Eglitis, 1967), Mustelidae (Abe et al, 1989;Hataba & Suzuki, 1989) and Pinnipedia (Blessing et al, 1972;Schumacher & Welsch, 1987;Cabanac et al, 1999;Stewardson et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

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The blood-storing ability of the spleen

Udroiu¹

2009

Rus.J.Theriol.

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Chain‐Like Structures of Biogenic and Nonbiogenic Magnetic Nanoparticles in Vascular Tissues

Gorobets

et al. 2022

Bioelectromagnetics

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In this paper, slices of organs from various organisms (animals, plants, fungi) were investigated by using atomic force microscopy and magnetic force microscopy to identify common features of localization of both biogenic and nonbiogenic magnetic nanoparticles. It was revealed that both biogenic and nonbiogenic magnetic nanoparticles are localized in the form of chains of separate nanoparticles or chains of conglomerates of nanoparticles in the walls of the capillaries of animals and the walls of the conducting tissue of plants and fungi. Both biogenic and nonbiogenic magnetic nanoparticles are embedded as a part of the transport system in multicellular organisms. In connection with this, a new idea of the function of biogenic magnetic nanoparticles is discussed, that the chains of biogenic magnetic nanoparticles and chains of conglomerates of biogenic magnetic nanoparticles represent ferrimagnetic organelles of a specific purpose. Besides, magnetic dipole-dipole interaction of biogenic magnetic nanoparticles with magnetically labeled drugs or contrast agents for magnetic resonance imaging should be considered when designing the drug delivery and other medical systems because biogenic magnetic nanoparticles in capillary walls will serve as the trapping centers for the artificial magnetic nanoparticles. The aggregates of both artificial and biogenic magnetic nanoparticles can be formed, contributing to the risk of vascular occlusion. Bioelectromagnetics. 43:119-143, 2022.

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Scanning electron microscopic studies on the microvascular system of the spleen in the rat, cat, dog, pig, horse and cow.

Cited by 13 publications

References 29 publications

The spleen of the one humped camel (Camelus dromedarius) has a unique histological structure

The spleen of the one humped camel (Camelus dromedarius) has a unique histological structure

The blood-storing ability of the spleen

Chain‐Like Structures of Biogenic and Nonbiogenic Magnetic Nanoparticles in Vascular Tissues

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