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Vascular and Pericardiac Pressures in Ascidiella Aspersa (Urochordata: Ascidiacea)
Published online by Cambridge University Press: 11 May 2009
Extract
INTRODUCTION
The heart of tunicates is of physiological interest for several reasons: it is a simple peristaltic tube; it lacks valves; and the direction of the contractions changes periodically thus reversing the direction of blood flow. The phylogenetic importance of tunicates, being invertebrate chordates, also make physiological details of interest.
- Type
- Research Article
- Information
- Journal of the Marine Biological Association of the United Kingdom , Volume 65 , Issue 4 , November 1985 , pp. 911 - 922
- Copyright
- Copyright © Marine Biological Association of the United Kingdom 1985
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