The hydropathic encyclopedia: a system of hydropathy and hygiene .. . lf as long, correspondswith the diastole of the ventricles. The first sound is dull and pro-longed • the secund is short and sharp. The first sound is produced byI lie rush of blood through the comparatively narrow -a ,lets of the1—93 an PHYSIOLOGY. aorta and pulmonary artery, and its passage or er the rough internalsurface of the heart, aided by the muscular contraction of tlio ventri-cles and the hearts impulse. The se^>nd sound is evidently occa-sioned by the sudden shutting down of the semilunar valves at th»orifices
The hydropathic encyclopedia: a system of hydropathy and hygiene .. . lf as long, correspondswith the diastole of the ventricles. The first sound is dull and pro-longed • the secund is short and sharp. The first sound is produced byI lie rush of blood through the comparatively narrow -a ,lets of the1—93 an PHYSIOLOGY. aorta and pulmonary artery, and its passage or er the rough internalsurface of the heart, aided by the muscular contraction of tlio ventri-cles and the hearts impulse. The se^>nd sound is evidently occa-sioned by the sudden shutting down of the semilunar valves at th»orifices of the aorta and pulmonary artery. The capillary vessels are a network of extremely miuute vessel?intermediate between the arteries and veins. This structure exists i*all organic textures. The size of the capillaries is proportioned to that ofthe red particles of the blood, their diameters varying from — to ^ ofan inch. They are not a distinct system terminating in open mouths,but merely fine tubes by which the arteries are continued into theveins. Fig. CAPILLARY SYSTEM. Fig. 13Si represents the anastomoses of the oiocl-veBsels, which form the capillariesea seen in the web of a frogs toot by the aid of tno microscope. 1, 1. The veins. 2, 92. The arteries. In the capillary vessels all the organic functions take place. Theircirculation is to a great degree independent of the hearts action, andis. no doubt, influenced and regulated by the organic nerves, whichpreside over the functio~al process, and distrib te the blood to the va-rious parts and organs, according to the necessities of the vitnl sum of the diameters of all the capillary ves^ls greatly ebeech ^HE »i/IDUAL VUiNCTIONS. Iffi that of the arteries and veins, which enables the blood in them to movellowle, and even sometimes take a retrograde direction to some ex-tent circumstances favorable to the perfect nutrition of the structures,the separation of worn-out material, and the consolidation of
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Keywords: ., bookcentury1800, bookdecade1870, bookpub, booksubjecthydrotherapy
