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  • Alimentary canal  (1)
  • Intestine  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Special muscle cells and their innervation in the mammalian small intestine (1974)
    Springer
    Cell & tissue research 153 (1974), S. 63-77 
    Details
    ISSN: 1432-0878
    Keywords: Smooth muscle ; Intestine ; Afferent fibres ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The innermost layer of the circular musculature of the ileum of the guinea-pig, mouse, rat, rabbit, cat and dog is made of special small and dark muscle cells (sd cells), which can be identified by light and electron microscopy. These cells have a higher surface to volume ratio than ordinary muscle cells. They show all the organelles of smooth muscle cells and are in close relationship with a great number of extrinsic and intrinsic nerve fibres. They send numerous thin cytoplasmic processes towards the bulk of the circular layer, but nexuses between the sd cells and ordinary muscle cells are not found. It is suggested that some of the nerve fibres in this part of the circular layer are motor, setting the sd cells to a given length, and some are afferent in luminal pressure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00225446
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Adrenergic innervation of the alimentary canal (1971)
    Springer
    Cell & tissue research 122 (1971), S. 357-377 
    Details
    ISSN: 1432-0878
    Keywords: Alimentary canal ; Adrenergic innervation ; Rabbit, rat, guinea pig
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The adrenergic innervation of the subdiaphragmatic digestive tract of the rabbit, the rat and the guinea-pig, has been studied by means of the histochemical technique of Falck and Hillarp. Auerbach's and Meissner's plexuses are richly supplied by adrenergic fibres both in the ganglia and in the connecting tracts. The distribution of adrenergic fibres appears fairly uniform within the myenteric ganglia of the different subdivisions. No adrenergic intramural neurons are found except in Auerbach's plexus of the proximal colon of the guinea-pig where particularly tightly packed clusters of pericellular baskets are also found. Adrenergic fibres are present within the circular muscle layer of all regions, and in the taeniae of the caecum of the guinea-pig. In the cardiac and the anal sphincters there is an exceedingly dense innervation of longitudinal and circular muscle. The glands of the mucous coat in the different parts of the gut are richly supplied by adrenergic nerves. There is a dense innervation of intestinal arteries. It is suggested that postganglionic adrenergic axons have a direct action on the muscle and that they indirectly affect the muscle by an action on intramural ganglia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00935995
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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