Structure of Lymphatics in Rat Cecum with Special Reference to Submucosal Collecting Lymphatics Endowed with Smooth Muscle Cells and Valves. I. A Scanning Electron Microscopic Study.

Ohtani, Osamu

doi:10.1679/aohc.55.429

Cited by 18 publications

(10 citation statements)

References 24 publications

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“…Their abluminal structure is similar to that in the rat cecal mucosa (Ohtani, 1992). Hauck (1982) has suggested that the most initial part of the lymphatic system is a completely open system of tissue channels rather than blind-ended one.…”

Section: Discussionmentioning

confidence: 86%

“…In their original method, samples are digested in a collagenase solution after KOH-treatment. Our studies, however, have shown that only KOH-digestion is sufficient to expose the abluminal structures of blood and lymphatic microvessels (Ohtani, 1992;Ohtani et al, 1993). It is especially noteworthy that the KOH-treatment allows layer by layer examination of the samples by simple dissection such as blowing away or taking off superficial structures (Ohtani et al,.…”

Section: Discussionmentioning

confidence: 86%

“…Hauck (1982) has suggested that the most initial part of the lymphatic system is a completely open system of tissue channels rather than blind-ended one. However, as in the rat cecal mucosa (Ohtani, 1992), there are many lymphatic capillaries in the guinea pig gallbladder start with blind ends which are closed by attenuated endothelial flaps interdigitated with each other, although there are some gaps between the endothelial flaps as seen in other part of the lymphatic vessels. The gaps between endothelial flaps appear to serve as paths for fluid and macromolecules.…”

Section: Discussionmentioning

confidence: 93%

“…The KOH-macerated samples were prepared according to our modification (Ohtani, 1992;Ohtani et 1993) of the original method by Miller et al (1982). In brief, tissue pieces fixed with 2.5 % glutaraldehyde were placed in 5 N KOH at 60 o C for 10 minutes.…”

Section: Koh-maceration/semmentioning

confidence: 99%

“…The present study is carried out to reveal the threedimensional organization of the blood and lymphatic microrvasculatures of the gallbladder in the guinea pig by the modified KOH-maceration/SEM technique (Ohtani, 1992). This method allows us to examine the three-dimensional organization of cellular elements of blood and lymphatic microvessels.…”

Section: Introductionmentioning

confidence: 99%

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Organization of the blood and lymphatic microvasculature of the gallbladder in the guinea pig: A scanning electron microscopic study

Ohtani

Lee

Wang

et al. 1997

Microsc. Res. Tech.

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Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 93%

Section: Koh-maceration/semmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Organization of the blood and lymphatic microvasculature of the gallbladder in the guinea pig: A scanning electron microscopic study

Ohtani

Lee

Wang

et al. 1997

Microsc. Res. Tech.

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Thymic microvascular system

Kato

1997

Microsc. Res. Tech.

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Morphological studies of the microcirculatory system in the thymus were reviewed in regards to methodology and structural organization of blood and lymphatic vessels. The blood capillaries and postcapillary venules (PCVs) in the thymus are characterized by a double‐walled structure. These vessels are surrounded more or less by perivascular spaces (PVSs) containing many lymphocytes. This space is delimited on the one side by abluminal surface of the vascular endothelium and on the other side by cytoplasmic processes of epithelial reticular cells. There are interruptions or gaps on the outer epithelial reticular layer. The lymphatic vessels can be distinguished histochemically from blood vessels based on strong 5′‐nucleotidase (5′‐Nase) activity. The 5′‐Nase‐positive lymphatic vessels were seen predominantly in the capsule and interlobular connective tissue but sometimes in the immediate vicinity of the PVS around the PCV, when a discrete opening in the lymphatic wall next to the PVS was found. Thus, it may be regarded as an initial part of lymphatics closely associated with the PVS, suggesting a possible route for lymphocyte efflux into the lymphatic vessel from the PVS. The endothelial cells of lymphatic vessels as well as PCVs are often infiltrated by lymphocytes, particularly more heavily during acute involution of the thymus. These images represent the migration of lymphocytes into the blood or lymphatic microcirculation. Microsc. Res. Tech. 38:287–299, 1997. © 1997 Wiley‐Liss, Inc.

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Lymphatic Vessel Network Structure and Physiology

Breslin

Yang

Scallan

et al. 2018

Comprehensive Physiology

272

258

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The lymphatic system is comprised of a network of vessels interrelated with lymphoid tissue, which has the holistic function to maintain the local physiologic environment for every cell in all tissues of the body. The lymphatic system maintains extracellular fluid homeostasis favorable for optimal tissue function, removing substances that arise due to metabolism or cell death, and optimizing immunity against bacteria, viruses, parasites, and other antigens. This article provides a comprehensive review of important findings over the past century along with recent advances in the understanding of the anatomy and physiology of lymphatic vessels, including tissue/organ specificity, development, mechanisms of lymph formation and transport, lymphangiogenesis, and the roles of lymphatics in disease.

show abstract

Structure of Lymphatics in Rat Cecum with Special Reference to Submucosal Collecting Lymphatics Endowed with Smooth Muscle Cells and Valves. I. A Scanning Electron Microscopic Study.

Cited by 18 publications

References 24 publications

Organization of the blood and lymphatic microvasculature of the gallbladder in the guinea pig: A scanning electron microscopic study

Organization of the blood and lymphatic microvasculature of the gallbladder in the guinea pig: A scanning electron microscopic study

Thymic microvascular system

Lymphatic Vessel Network Structure and Physiology

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