Abstract
The minute anatomy of the heart ofHeteropneustes fossilis has been described. The anteriormost chamber of the heart is a bulbus arteriosus with an appendant pouch-like structure. As for the cardiac-valves, there are a pair of sinu-atrial valves, two pairs of atrio-ventricular valves and a pair of ventriculo-bulbar valves. The conducting tissues are absent in the heart.
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Abbreviations
- A.:
-
Atrium
- A.V.V.I.:
-
Major atrio-ventricular valve
- A.V.V.II.:
-
Minor atrio-ventricular valve
- B.A.:
-
Bulbus arteriosus
- C.D.:
-
Cuvierian duct
- I.L.:
-
Inner circular muscle layer of the bulbus arteriosus
- I.P.:
-
Inpushing of the wall of the bulbus arteriosus
- M.P.:
-
Median partition of the bulbus arteriosus
- O.L.:
-
Outer loose connective tissue layer of the bulbus arteriosus
- S.A.V.:
-
Sinu-atrial valve
- S.V.:
-
Sinus venosus
- V.B.V.:
-
Ventriculo-bulbar valve
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Communicated by Prof. B. C. Mahendra,d.sc., f.a.sc., f.a.z., f.z.s.i.
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Thomas, E.I. Studies on the heart ofHeteropneustes fossilis (Bloch). Proc. Indian Acad. Sci. 66, 53–62 (1967). https://doi.org/10.1007/BF03051670
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DOI: https://doi.org/10.1007/BF03051670