Beiträge zur Kenntnis des Baues und der Funktion der Lamellenkörperchen

Schumacher, S.

doi:10.1007/bf02997362

Cited by 30 publications

(4 citation statements)

References 5 publications

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“…Similar perfusions were made into the arteries of two mesenteries, and the distribution of vessels in a number of undissected corpuscles was observed. All these showed the same distribution of intracorpuscular vessels as was described by von Schumacher (1911) and by Sheehan (1933) and was found after successful experiments. In threequarters of our preparations a capillary was seen reaching, but not extending beyond, the point at which the nerve fibre enters the central core of the corpuscle (e.g.…”

Section: Perfusion With Normal Solutionsupporting

confidence: 64%

The relation between receptor potentials and the concentration of sodium ions

Diamond¹,

Gray²,

Inman³

1958

The Journal of Physiology

115

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Section: Perfusion With Normal Solutionsupporting

confidence: 64%

The relation between receptor potentials and the concentration of sodium ions

Diamond¹,

Gray²,

Inman³

1958

The Journal of Physiology

115

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“…Schumacher, as long ago as 1911 (33), recognized that the core region was bilaterally organized. He believed that the core lamellae were cytoplasmic, for he showed nuclei in some of these, but light microscopy was inadequate for visualizing further detail.…”

Section: E L E C T R O N Microscopy Of Pacinian Corpusclementioning

confidence: 99%

“…The unusual morphology and comparatively large size of this sensory ending attracted the attention of many nineteenth century microscopists including Henle and K611iker (12), Todd and Bowman (39), Herbst (13), Krause (14), Grandry (9), Rauber (29), and Schwalbe (34). Despite this, in the early years of the twentieth century, important additions to the literature were made by Ramstr~m (28), Michailow (19), and particularly Schumacher (33). More recently Lee (15), Glees, Mohiuddin, and Smith (8), and Sampaolo (30) have studied the structure of this end organ.…”

Section: Introductionmentioning

confidence: 99%

Electron Microscopy of the Pacinian Corpuscle

Pease

Quilliam

1957

The Journal of Cell Biology

272

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The Pacinian corpuscle has a framework of cytoplasmic lamellae arranged concentrically in the outer zone, and bilaterally in the core. Between these is an intermediate growth zone. The inner core shows an unexpected complexity in that its component lamellae are arranged in two symmetrical groups of nested cytoplasmic sheets. Longitudinal tissue spaces form clefts separating the two groups. The perikarya of the core lamellae lie in or near the intermediate growth zone, and send arms into the clefts. The arms then branch and terminate as lamellae which interdigitate with those of neighboring cells. The single nerve fiber loses its myelin sheath just before it reaches the inner core but retains its Schwann cell cytoplasmic covering for a short additional distance. The Schwann sheath is not continuous with the lamellae of the inner core. Inside the core the fiber contains a striking circumferential palisade of radially disposed mitochondria. The fiber does not arborize. Vascular capillaries penetrate the hilar region of the corpuscle only as far as the myelinated sheath of the nerve, and they have not been seen elsewhere in the corpuscle. There is direct continuity between the clefts of the core and tissue spaces in the vicinity of the capillaries. It is likely that this provides a route whereby metabolites reach the active nerve ending, as well as the cells of the growth zone. The outer zone consists of at least 30 flattened concentric cytoplasmic lamellae separated from one another by relatively wide fluid-filled spaces. Collagenous fibrils are present, particularly on the outer surface of lamellae, and tend to be oriented circularly. The girdle of proliferating cells constituting the growth zone, which is prominent in corpuscles from young animals, is the layer from which the outer lamellae are derived. Osmotic forces probably elevate the lamellae, and maintain turgor pressure.

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“…According to Schumacker (1911), the corpuscles become inflated when the blood pressure is increased, and he believes they are involved in the regulation of blood pressure. Ruffini (1904-05, p. 430) reports that they are often found several in a line on a single axial fibril, the fibril terminating in the last one.…”

Section: The Capsulated End-organsmentioning

confidence: 99%