. The biology of marine animals. Marine animals; Physiology, Comparative. 114 THE BIOLOGY OF MARINE ANIMALS large ganglion cells of the middle cardiac segments and is relayed via the smaller neurones to the heart muscle. When the median nerve cord is progressively removed the amplitude of contractions diminishes, and when. Fig. Nervous System in the Dorsal Wall of the Heart of Palinurus vulgaris N. dors, dorsal cardiac nerve piercing the heart wall; Os, ostium; Tr. gang, ganglionic trunk with its nerve cells (from Alexandrowicz, 1932.) the longitudinal nerves are cut through, the beating
. The biology of marine animals. Marine animals; Physiology, Comparative. 114 THE BIOLOGY OF MARINE ANIMALS large ganglion cells of the middle cardiac segments and is relayed via the smaller neurones to the heart muscle. When the median nerve cord is progressively removed the amplitude of contractions diminishes, and when. Fig. Nervous System in the Dorsal Wall of the Heart of Palinurus vulgaris N. dors, dorsal cardiac nerve piercing the heart wall; Os, ostium; Tr. gang, ganglionic trunk with its nerve cells (from Alexandrowicz, 1932.) the longitudinal nerves are cut through, the beating of anterior and posterior regions of the heart becomes asynchronous. Local warming and excitation are most effective in altering heart rate when applied to the central segments of the ganglion. It is of interest that a deganglionated heart, which has ceased beating, may be stimulated into activity by. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nicol, J. A. Colin (Joseph Arthur Colin), 1915-. New York, Interscience Publishers
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