Morphological analysis of the fish heart ventricle: myocardial and connective tissue architecture in teleost species

Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft
D Sanchez-QuintanaJ M Hurle

Abstract

Light and scanning electron microscopy were used to study the structure of the heart ventricle in three species of marine teleost fishes: the hake (Merluccius merluccius), the angler fish (Lophius piscatorius) and the sea bream (Pagellus centrodontus). Our findings show the ventricle to be shaped differently in each species: tubular in the hake, saccular in the angler fish and pyramidal in the sea bream. From a structural viewpoint, interest was centered on two aspects: organization of the myocardial fibres and arrangement of connective tissue. In hake and angler fish ventricles, the myocardium was exclusively trabecular in nature, whereas the bream ventricle, in addition to trabecular myocardium, presented a thin compact layer. Muscle fibres showed precise patterns of organization at the level of the ventricular orifices. With the techniques used the intramyocardial connective tissue was detected in the following ventricular zones: i) at the level of subepicardial and subendocardial spaces, ii) surrounding the myocardial fascicles, and iii) surrounding individual myocardial cells. According to this structural study, the pyramidal ventricle of the fish should be considered as a ventricular pump with greater efficiency.

References

Jan 1, 1985·Comparative Biochemistry and Physiology. A, Comparative Physiology·S H EmeryV Randazzo
Mar 1, 1987·The Anatomical Record·D Sanchez-Quintana, J M Hurle
May 1, 1987·The Anatomical Record·P C Dolber, M S Spach
Mar 1, 1981·British Heart Journal·R A GreenbaumR H Anderson
Oct 1, 1982·The Anatomical Record·M A Fernandez-Teran, J M Hurle
Aug 1, 1993·Archives of Histology and Cytology·Y OhtaniT Nakatani

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Citations

Apr 13, 2011·Proceedings of the National Academy of Sciences of the United States of America·Corinne E HickenJohn P Incardona
Jan 10, 2009·The Veterinary Clinics of North America. Exotic Animal Practice·Johanna SherrillStephen Hernandez-Divers
Jul 14, 2005·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Josè M IcardoBruno Tota
Aug 28, 2002·Anatomia, histologia, embryologia·K SimõesC Da Cruz
Nov 18, 2016·The Journal of Experimental Biology·Adam N KeenTodd E Gillis

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