The hydropathic encyclopedia : a system of hydropathy and hygiene in eight parts ..designed as a guide to families and students, and a text-book for physicians . but half as long, correspondswith the diastole of the ventricles. The first sound is dull and pro-longed • the second is short and sharp. The first sound is produced bythe rush of blood through the comparatively narrow outlets of thnI—23 206 PHYSIOLOGY. aorta and pulmonary artery, and its passage over the rough internalsurface of the heart, aided by the muscular contraction of the ventri-cles and the hearts impulse. The seuund sound i
The hydropathic encyclopedia : a system of hydropathy and hygiene in eight parts ..designed as a guide to families and students, and a text-book for physicians . but half as long, correspondswith the diastole of the ventricles. The first sound is dull and pro-longed • the second is short and sharp. The first sound is produced bythe rush of blood through the comparatively narrow outlets of thnI—23 206 PHYSIOLOGY. aorta and pulmonary artery, and its passage over the rough internalsurface of the heart, aided by the muscular contraction of the ventri-cles and the hearts impulse. The seuund sound is evidently occa-sioned by the sudden shutting dowu of the semilunar valves at theorifices of the aorta and pulmonary artery. The capillary vessels are a network of extremely minute vesselsintermediate between the arteries and veins. This structure exists itall 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 Fig. CAPILLARY SYSTEM. Fig. 132 represents the anastomoses of the blood-vessels, which form the capillaries,as 6een in the web of a frogs foot by the aid of the microscope. 1, 1. The veins. 2,2,2. 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 functional process, and distribute the blood to the va-rious parts and organs, according to the necessities of the vital sum of the diameters of all the capillary vessels greatly exceeds THE INDIVIDUAL FUNCTIONS. 26J that of the arteries and veins, which enables the bipod in them to moveslowly, and even sometimes tuke a retrograde direction to some ex-tent, circumstances favorable to the perfec
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Keywords: ., bo, bookcentury1800, booksubjecthydrotherapy, booksubjectmedicine
