First principles of medicine / By Archibald Billing.

  • Billing, Archibald, 1791-1881
Date:
1849
Catalogue details

Licence: Public Domain Mark

Credit: First principles of medicine / By Archibald Billing. Source: Wellcome Collection.

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    whitish liquid, called ciyLE, which was disengaged when the bile united with the feculent matter, and which caused the chyme to appear grey, and con- stitutes the new nourishment, is kept mm contact with the lining of the intestines, where it is taken in by the tubes called aBsorBENT vessels ; and these absorbents, on account of the white chyle seen through them, are called racteaL (milky). The dacteal absorbents conduct this fresh supply of nourishment to make NEW BLOOD ; they deliver it first into the veins, near the heart, where it is mixed with the old dark-coloured (venous) blood, which has been circulated, and is on its return to the right side of the heart; from whence this mixture is sent through the lungs, to be purified, where it becomes bright scarlet arterial blood, and is then returned to the left side of the heart, which sends it through the arteries all over the frame, to supply its demands. All the business of constant support and re- newal of parts, and supply of secretions, as the growth or repair of bone, muscle, membrane, and other structures, the formation of bile, saliva, mu- cus, and other secretions, is carried on by the ex- treme minute branches of the blood-vessels; and whilst they preserve their proper tone and size, all goes on well; when their action is deranged, dis- ease commences, often prefaced by pain or other disorder of the nerves. The ultimate minute branches of the arteries, from their fineness, are called caprtLary (from capillus, a hair). The colour of the blood is caused by red PAR- vices diffused through a transparent fluid, liquor