The laws and mechanics of circulation, with the principle involved in animal movement . Kg. 205.—Transverse Section through the Commencing Portion of the Vas Deferens.—Klein, n, Epithelium ; b, tunica mucosa ; c, inner ; d, middle ; e, outer muscular-layer ; /, bundles of the cremaster internus ; g, vein containing muscles in its walls. Tunica ViyinalijTunica JMluj in ia. Klg. a06.—Vertical Section of the Testicle, to show the arrangement of the ducts.—Gray. 19 i DUALISM IN NERVOUS FORCE. of rhythmical changes in pressure; therefore, is based uponpressure, which is fundamental in the organism
The laws and mechanics of circulation, with the principle involved in animal movement . Kg. 205.—Transverse Section through the Commencing Portion of the Vas Deferens.—Klein, n, Epithelium ; b, tunica mucosa ; c, inner ; d, middle ; e, outer muscular-layer ; /, bundles of the cremaster internus ; g, vein containing muscles in its walls. Tunica ViyinalijTunica JMluj in ia. Klg. a06.—Vertical Section of the Testicle, to show the arrangement of the ducts.—Gray. 19 i DUALISM IN NERVOUS FORCE. of rhythmical changes in pressure; therefore, is based uponpressure, which is fundamental in the organism for compellingcirculation in the measure of the physiological requirements,this whether it relate to the blood itself, the juices in the struc-tures, or the secretions in the organs. 3. It involves dualism in muscles and nervous force inorder to effect the actions, or the power to produce expansionand low pressure in one portion, with simultaneous contractionand high pressure in a contiguous portion, whereby rapidmovement in the contents, with obviation of friction andstrain, are readily effected. A most notable circumstance inthe vas deferens is the absence of valves for sustainingthe fluids and obviating reflux; this, notwithstanding theascent is perpendicular, in order to reach the vesiculse semi-nales or seminal reservoirs at the base of the bladder (Fig.
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Keywords: ., bookcentury1800, bookde, booksubjectblood, booksubjectrespiration
