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Cholinergic and adr...
Cholinergic and adrenergic influences on the heart of the African lungfish (Protopterus annectens)
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- Sandblom, Erik, 1978 (författare)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
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- Gräns, Albin, 1979 (författare)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
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- Seth, Henrik, 1979 (författare)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
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visa fler...
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- Axelsson, Michael, 1958 (författare)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
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visa färre...
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(creator_code:org_t)
- 2010
- 2010
- Engelska.
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Ingår i: Journal of fish biology. - 0022-1112. ; 76:4, s. 1046-1054
- Relaterad länk:
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https://gup.ub.gu.se...
Abstract
Ämnesord
Stäng
- Cardiac cholinergic and adrenergic tones were determined in minimally instrumented African lungfish Protopterus annectens. Mean +/- S.E. routine heart rate (f(H)) was 31.6 +/- 1.4 beats min(-1), cholinergic tone was 34.6 +/- 5.2% and adrenergic tone was 9.4 +/- 2.3%, while the intrinsic f(H) after blockade of both adrenergic and cholinergic control systems was 39.1 +/- 1.3 beats min(-1). It is demonstrated that routine cholinergic tone has probably been underestimated in previous studies on lungfishes, suggesting that withdrawal of vagal tone may provide an important mechanism to increase f(H) in this group of fishes during, for example, air breathing.
Ämnesord
- NATURVETENSKAP -- Biologi -- Zoologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Zoology (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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