A treatise on physiology and hygiene for educational institutions and general readers .. . atural, although the amount of blood is larger than this fact we infer, that whatever impedes the venous circula-tion tends to diminish vitality; and hence, articles of clothing orconstrained postures, that confine the body or limbs, and hinder thecirculation of the blood, are to be avoided as injurious to the The Capillaries.—A third set of vessels completes the listof the organs of circulation, namely, the capillary vessels, so called(from the Latin word capillaris, hair-like), be
A treatise on physiology and hygiene for educational institutions and general readers .. . atural, although the amount of blood is larger than this fact we infer, that whatever impedes the venous circula-tion tends to diminish vitality; and hence, articles of clothing orconstrained postures, that confine the body or limbs, and hinder thecirculation of the blood, are to be avoided as injurious to the The Capillaries.—A third set of vessels completes the listof the organs of circulation, namely, the capillary vessels, so called(from the Latin word capillaris, hair-like), because of their extremefineness. They are, however, smaller than any hair, having a diam-eter of about g^QQ of an inch, and can only be observed by the useof the microscope. These vessels are the connecting link betweenthe last of the arteries and the first of the veins. The existence ofthese vessels was unknown to Harvey, and was the one step want-ing to complete his great discovery. The capillaries were not dis-covered until 1661, a short time after the invention of the
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Keywords: ., bookcentury1800, bookdecade1, booksubjectphysiology, bookyear1887
