The laws and mechanics of circulation, with the principle involved in animal movement . ch, nearly covered by the liver ;K, pylorus ; 7, J, liver ; Z, Z, lungs ; 31, oviducts ; iV, ovaries ; V, intestine ; £7,urinary bladder ; U, U, anal bursse ; X, cloaca opening. tricle being much thicker comparatively than in other animals(Figs. 176, ] 77). That this, together with the sluggish movementsof the animal, is due to defective action in the lungs, has forci-ble proof in the case of the flying lizard (Fig. 179), in which EFFECT UPON CAEDIAC DEVELOPMENT. 427 respiration is free, the movements energ
The laws and mechanics of circulation, with the principle involved in animal movement . ch, nearly covered by the liver ;K, pylorus ; 7, J, liver ; Z, Z, lungs ; 31, oviducts ; iV, ovaries ; V, intestine ; £7,urinary bladder ; U, U, anal bursse ; X, cloaca opening. tricle being much thicker comparatively than in other animals(Figs. 176, ] 77). That this, together with the sluggish movementsof the animal, is due to defective action in the lungs, has forci-ble proof in the case of the flying lizard (Fig. 179), in which EFFECT UPON CAEDIAC DEVELOPMENT. 427 respiration is free, the movements energetic, the heart (a) com-paratively small. The reduced size and number of the muscles in the ventricleare coincident with the increased and freer respiration, whilethis provides for corresponding increase in the activities, whichmust have their equivalent in force evolved by means of respi-ration, the two being in correspondence, from the very na-ture of things. At the same time, this indicates a strugglewith some force, which is gravitation ; hence the extensive Fig. 176. Fig.
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Keywords: ., bookcentury1800, bookde, booksubjectblood, booksubjectrespiration
