@article{oai:ir.kagoshima-u.ac.jp:00012768,
 author = {NAKAMURA, Kaworu and ONO, Haruya},
 journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University},
 month = {2016-10-31},
 note = {Comparative morphological investigations of the hearts of the prawn and the sea louse with
the recognitions of its: location, cell number, and innervation; together with the observations
of inner structures such as: ostia, arterial valves, and other appendages were carried-out. Hearts
were extirpated from intact or formalin-fixed specimens, then prepared for binocular and
histological examinations.
In the prawn, a paired aorta diverges forward from the anterior of the heart. Pericardium
occurs on the base of this aorta, and envelops it completely. Posteriorly, an aorta runs backward, leaving the heart, and branches off another aorta which descends near its proximal
area. Ventrally, the heart provides a paired arteria hepatica. In such aortae and arteriae
there exist valvular systems at their proximal lumens. As for ostia, four on the ventral surface
and six on the dorsal surface of the heart exist. The cardiac ganglion is situated within a nerve
trunk that lies on the midline of inner surface of the dorsal wall of the heart. It contains nine
cells, irregularly arranged. A cardiac nerve connects with the former after penetrating into
dorsal wall at the middle point of the heart. In the sea louse, the posterior end of a tubular
heart is blinded, and its anterior lengthens to become an anterior aorta. Near the proximal
end of this aorta, a paired arteria lateralis anterior derives from the cardiac wall. In addition,
three pairs of arteriae are provided along each side of the heart ventro-laterally. Each of
their proximal lumens has a thin concave valve. Two paired ostia are distributed possessing
distinct thick borders in the latter half of the heart along each of its lateral surfaces. The
nerve trunk, containing the cardiac ganglion, runs along the midline of the inner surface of the
dorsal wall of the heart. Cells of the ganglion are six in number, arranging regularly along
the length of the trunk.},
 pages = {247--257},
 title = {Comparative Anatomy on the Cardiac Organs of Crustacea, Penaeus japonicus BATE (Decapod) and Ligia exotica Roux (Isopod)},
 volume = {29},
 year = {}
}