The laws and mechanics of circulation, with the principle involved in animal movement . the action with respiration,the branchial apparatus, heart and viscera being alike in-cluded, to the end, that force may be evolved in the measure ofthe physiological requirements, for maintaining a balance inthe organism ; otherwise impossible. Finally, and looking from these e^ensive connections sub-sisting between the respiratory centre and the body-tissuesfor compelling correspondence to the little force pump in thevenous system at the base of the skull in immediate relationwith the branchise (Fig. 164,
The laws and mechanics of circulation, with the principle involved in animal movement . the action with respiration,the branchial apparatus, heart and viscera being alike in-cluded, to the end, that force may be evolved in the measure ofthe physiological requirements, for maintaining a balance inthe organism ; otherwise impossible. Finally, and looking from these e^ensive connections sub-sisting between the respiratory centre and the body-tissuesfor compelling correspondence to the little force pump in thevenous system at the base of the skull in immediate relationwith the branchise (Fig. 164, a), can it be doubted for a singlemoment but that the entire mechanics is based upon respira-tion for pumping the commerce in the organism commen-surate with the physiological requirements, while the heartassists in the action by increasing circulation of the blood inthe branchiae for bringing this in correspondence with thewater flowing through the organs, produced by the greatpumping action in the mouth and opercula but involving the 406 RESPIRATORY MOVEMkNT UNIVERSAL IN Fig. 167.—Nerves to the Cod (Gadus Morrhua) ; reduced.—Illustrations of the Com-parative Anatomy of the Nervous System, 4to. 1835. By Joseph Swan. 1,2, 3,4, Nervi laterales, formed by the union of the fifth and eighth pairs, showing howthey connect with the rami ventrales and rami dorsales of the spinal nerves,so as to unify the parts with the medulla oblongata and respiratory centre ; v,ventral fin, showing the nerves (5, 6) running into it from the u nervus lateralis ;*P, pectoral fin, similarly supplied ; A, tail fin, showing source of nervous supply ;10, ramus dorsalis ; 8, ramus ventralis ; 9, roots of ramus dorsalis and ramusventralis, the whole connecting with the respiratory centre.
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Keywords: ., bookcentury1800, bookde, booksubjectblood, booksubjectrespiration
