Micro-anatomie du myosalpinx en trois dimensions en utilisant la microscopie a balayage a haute resolution apres maceration alcaline et micro- dissection ultrasonique

Translated title of the contribution: Three-dimensional microanatomy of the human myosalpinx by high resolution scanning electron microscopy after alkali maceration and ultrasonic microdissection

P. M. Motta, E. Vizza, S. Correr

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Today, the real three-dimensional (3D) microanatomy of the human myosalpinx can be revealed by means of high resolution scanning electron microscopy (SEM) after alkali maceration of the interstitial connective tissue and microdissection by ultrasounds (22, 23, 42, 43). The muscular waft of the Fallopian tube observed after the use of this technique appears as a continuous network of randomly anastomosed smooth muscle cell bundles having a multi-directional arrangement. These results demonstrate that the myosalpinx of the human Fallopian tube is therefore not organized in clearly- cut longitudinally, circularly or spirally arranged layers as suggested in previous bidimensional light microscopic studies. The presence of a network of multioriented bundles of smooth muscle cells (SMC) revealed by these techniques suggests that there is no morphological evidence for unidirectional peristalsis in the human Fallopian tube. In fact, its musculature is likely structurally designed to stir rather than to push the tubal contents thus generating the random component of the tubal transport. These morphological findings better explain the random pattern of the propagation of the contraction waves and of the electrical impulses through the smooth musculature of the human: Fallopian tube as postulated in early experimental physiological studies. The 3-D microanatomical results suggest a complex function for the ampullar musculature which may be not only specifically related with a transporting role. It may be, in fact, important in enhancing the ampullar vascular permeability and in further shaking the tubal content (fluid and gametes) favouring fertilization and a successfull early zygote segmentation (22, 23).

Original languageFrench
Pages (from-to)99-109
Number of pages11
JournalReferences en Gynecologie Obstetrique
Volume5
Issue number1
Publication statusPublished - 1997

Fingerprint

Microdissection
Fallopian Tubes
Alkalies
Ultrasonics
Electron Scanning Microscopy
Smooth Muscle Myocytes
Peristalsis
Zygote
Capillary Permeability
Fertilization
Germ Cells
Connective Tissue
Light

Keywords

  • Embryo transport
  • Fallopian tube
  • Human
  • Myosalpinx
  • Scanning electron microscopy

ASJC Scopus subject areas

  • Obstetrics and Gynaecology

Cite this

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title = "Micro-anatomie du myosalpinx en trois dimensions en utilisant la microscopie a balayage a haute resolution apres maceration alcaline et micro- dissection ultrasonique",
abstract = "Today, the real three-dimensional (3D) microanatomy of the human myosalpinx can be revealed by means of high resolution scanning electron microscopy (SEM) after alkali maceration of the interstitial connective tissue and microdissection by ultrasounds (22, 23, 42, 43). The muscular waft of the Fallopian tube observed after the use of this technique appears as a continuous network of randomly anastomosed smooth muscle cell bundles having a multi-directional arrangement. These results demonstrate that the myosalpinx of the human Fallopian tube is therefore not organized in clearly- cut longitudinally, circularly or spirally arranged layers as suggested in previous bidimensional light microscopic studies. The presence of a network of multioriented bundles of smooth muscle cells (SMC) revealed by these techniques suggests that there is no morphological evidence for unidirectional peristalsis in the human Fallopian tube. In fact, its musculature is likely structurally designed to stir rather than to push the tubal contents thus generating the random component of the tubal transport. These morphological findings better explain the random pattern of the propagation of the contraction waves and of the electrical impulses through the smooth musculature of the human: Fallopian tube as postulated in early experimental physiological studies. The 3-D microanatomical results suggest a complex function for the ampullar musculature which may be not only specifically related with a transporting role. It may be, in fact, important in enhancing the ampullar vascular permeability and in further shaking the tubal content (fluid and gametes) favouring fertilization and a successfull early zygote segmentation (22, 23).",
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