Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
Journal of fish biology
47 (1995), S. 0
ISSN:
1095-8649
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
A scanning electron microscopy study showed the presence of large pores in the endocardium of the sinus venosus of the dogfish Scyliorhinus canicula. The pores were always found on large bundles which protruded into the cardiac lumen. The bundles were mainly constituted of granule-containing nerve fibres. The average diameter of the pores was 3.2 μm (range=1.5-5.0μm), and their density, was about 822 pores mm−2. Endocardial pores were absent in other areas of the sinus venosus, but they were observed on the little bundles of granulated nerve fibres which were scattered throughout the atrium. The existence of large endocardial pores associated with bundles of granulated nerve fibres supports the hypothesis for the neuroendocrine nature of the elasmobranch sinus venosus wall.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1095-8649.1995.tb06001.x
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