Anatomy, physiology and hygiene . —Blood corpuscles are of twokinds, the red and the white. The red are smaller thanthe white, and much more The red color is its way to the right ventricle, is mixed with the blood in the form ofminute bubbles, and is carried into the pulmonary artery ; once in thisvessel it is impossible for it to pass through the capillaries of the lungs,and death by suffocation is the inevitable result. —Flint. 1 The operation originated in the 17th century, and much was expectedfrom its use, some believing that old people could be rejuvenated by usingthe blood of
Anatomy, physiology and hygiene . —Blood corpuscles are of twokinds, the red and the white. The red are smaller thanthe white, and much more The red color is its way to the right ventricle, is mixed with the blood in the form ofminute bubbles, and is carried into the pulmonary artery ; once in thisvessel it is impossible for it to pass through the capillaries of the lungs,and death by suffocation is the inevitable result. —Flint. 1 The operation originated in the 17th century, and much was expectedfrom its use, some believing that old people could be rejuvenated by usingthe blood of the young; but, after a number of deaths had resulted, itfell into disrepute. The operation has been revived, and. owing to im-proved surgical appliances and to a better knowledge oi the subject,excellent results have been obtained. Warm milk of cows lias beensuccessfully used instead of blood. 2 Tied corpuscles are about .,-00 of an inch in diameter, and aboutJoo of an in diameter. 162 THE CIRCULATION. — BLOOD. — ws Fig. Corpuscles. due to the globules en masse; if viewed separately bytransmitted light, they are of a light amber color. It hasbeen estimated that there are five million red corpuscles in a minute drop (a cubicmillimetre) of Inform they are flattened, cir-cular disks, slightly hol-lowed out on each side, andunder the microscope areseen to arrange themselvesin rows, adhering togetherside by side like a roll ofcoins. They are of jelly-like consistency, very elasticand extensile, easily bentand distorted, and can bepushed through the walls ofthe capillaries. They con-tain water, salts of phosphorus, and potassium, but theirmost important ingredient is a reddish proteid substancecontaining iron, which gives the color to blood. Thissubstance, called haemoglobin, has a strong affinity foroxygen, and unites with it; but the tissues, which have astronger affinity, absorb a large part of the oxygen incombination with the coloring matter, a
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