Fine structure of the lamina muscularis mucosae

Lane, Bernard; Rhodin, Johannes A.G.

doi:10.1016/s0022-5320(64)80024-1

Cited by 27 publications

(4 citation statements)

References 3 publications

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“…The ultrastructural analy sis of the muscle layer in this study correlated well with that reported in the guinea pig, except for the common occurrence of branching fibers in the dog which was not mentioned in the guinea pig study. The overall appear ance of this layer is reminiscent of that reported by Lane and Rhodin [1964] in the intestinal muscularis mucosae.…”

Section: Discussionsupporting

confidence: 64%

The Muscle Layer of the Canine Gallbladder and Cystic Duct

MacPherson

Scott

Chansouria

et al. 1984

Cells Tissues Organs

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The muscle layer of the canine gallbladder wall and cystic duct was found to be a three-dimensional meshwork of smooth muscle bundles which appear loosely and irregularly arranged on the mucosal aspect and consolidate to form a homogeneous plate-like layer on the serosal aspect. The muscle bundles are tightly woven around interspersed pockets of loose connective tissue in the gallbladder wall and gradually become loosely arranged with more prominent amounts of intervening connective tissue in the cystic duct. The muscle layer is thickest in the gallbladder wall and becomes progressively thinner out into the cystic duct. No anatomic sphincter was observed. Ultrastructural organization revealed individual muscle fibers to be of irregular profile, often branching, widely spaced with intervening collagen fibers, and having few cell-to-cell contacts.

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Section: Discussionsupporting

confidence: 64%

The Muscle Layer of the Canine Gallbladder and Cystic Duct

MacPherson

Scott

Chansouria

et al. 1984

Cells Tissues Organs

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“…Myofilaments occupy the largest portion of the cytoplasm and run parallel to the long axis of the cell. These filaments often come together in dense regions sometimes referred to as dense bodies or "attachment sites" (8)(9)(10)(11)29). Similar densities can also be seen at the surface of the cell immediately beneath the plasmalemma (Fig.…”

Section: Smooth Muscle Cellsmentioning

confidence: 85%

“…The smooth muscle ceils of rat uteri from both mature animals in diestrus and immature animals were identical in appearance and were similar to the smooth muscle cells of the intestine, vas deferens, and human nonpregnant uterus (8)(9)(10)(11). Striking changes in the numbers and distribution of the rough endoplasmic reticulum and Golgi complex of the uterine smooth muscle ceils occurred both during estrus, when high levels of circulating estrogens were present, and following the administration of estradiol to immature animals.…”

Section: Discussionmentioning

confidence: 99%

Fine Structural Changes in Uterine Smooth Muscle and Fibroblasts in Response to Estrogen

Ross

Klebanoff

1967

The Journal of Cell Biology

137

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The fine structure of the estrogen-primed uterus was examined in two series of rats, with emphasis upon the alterations in smooth muscle cells and fibroblasts. The first series of animals were mature animals that were sacrificed at diestrus or estrus. The second series consisted of prepubertal rats (57-70 g) that received subcutaneous injections of estradiol-17 in 20 % alcohol. Four groups of animals received the hormone twice daily for 3 days for a total dose of 0.06, 0.6, 6.0, or 60.0 #g, respectively. An estrogenic response was observed in all groups as indicated by an increase in uterine weight. Control groups consisted of either untreated animals or animals receiving 20% alcohol. All animals were sacrificed on the 4th day. The fibroblasts and smooth muscle cells in the controls were similar to their counterparts in the mature animal in diestrus. They were small, contained relatively little rough endoplasmic reticulum, and the connective tissue cells appeared like fibrocytes. All of the estrogen-treated animals were similar in appearance and were comparable to their counterparts in the mature animal in estrus. Both the smooth muscle cells and the fibroblasts were increased in size, demonstrated a marked enlargement and dilation of ergastoplasmic cisternae, and contained increased numbers of attached and free cytoplasmic ribosomes. The presence of an extensive rough endoplasmic reticulum in the smooth muscle cells of the stimulated uterus is in marked contrast to the appearance of these cells in other tissues. These observations correlate with previous biochemical studies by other workers, in which estrogens have been shown to promote the synthesis of uterine RNA, collagen, and noncollagenous protein, and suggest that smooth muscle cells may participate in the synthesis of connective tissue proteins.

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“…1958, I960: IIagf.r andTa f iu i, 1959;BRETTSCHNEiDF.it, 1962: Thaemert, 1963: Tafuri, 1964: Lane and Rhodin, 1964Taxi, 1964Taxi, , 1965P ick. 1967: Schofield.…”

Section: Introductionunclassified

Ultra-architectonics of the neural plexus in chronically isolated small intestine

Fehér¹,

Csányi²

1974

Cells Tissues Organs

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Fine structure of the lamina muscularis mucosae

Cited by 27 publications

References 3 publications

The Muscle Layer of the Canine Gallbladder and Cystic Duct

The Muscle Layer of the Canine Gallbladder and Cystic Duct

Fine Structural Changes in Uterine Smooth Muscle and Fibroblasts in Response to Estrogen

Ultra-architectonics of the neural plexus in chronically isolated small intestine

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