Dust and its dangers / by Mitchell Prudden.

  • Theophil Mitchell Prudden
Date:
[1890]
Catalogue details

Licence: Public Domain Mark

Credit: Dust and its dangers / by Mitchell Prudden. Source: Wellcome Collection.

    73/146 page 45
    fully the lungs may stow it away in consider- able quantities, there is a very curious provision against its further entrance tp and distribution in the body. This is the way that is provided against. As the blood circulates through the lungs as well as in every other part of the body, a small amount of its fluid part, conveying an abundance of nutriment, oozes out through the walls of the vessels into all the minute clefts and crannies of the tissues where the cells lie and bathes and nourishes them. Now, having done this, the nutritive fluid—which we call lymph— is gradually collected into a series of irregular narrow vessels which open into large and still larger trunks until finally it is poured back into the blood, of which it again becomes a part. If this lymph which has searched out every remotest corner of the body to which it was distributed should have become contaminated or polluted by any harmful or foreign material which it had come across in the tissues, it would carry it straight back and pour it into the blood, where it might cause dire results, since the blood is an extremely important and delicate juice. But fortunately the lungs, as well as
    digitised image 1
    digitised image 2
    digitised image 3