Hints and helps for home nursing and hygiene : a handbook for all who have to do with sickness arranged according to the syllabus of the second, or nursing, course of lectures / by E. MacDowel Cosgrave ; with the addition of a chapter on the application of the roller bandage, by R.J. Collie.

  • Cosgrave, E. MacDowel (Ephraim MacDowel)
Date:
[1895?.]
Catalogue details

Licence: Public Domain Mark

Credit: Hints and helps for home nursing and hygiene : a handbook for all who have to do with sickness arranged according to the syllabus of the second, or nursing, course of lectures / by E. MacDowel Cosgrave ; with the addition of a chapter on the application of the roller bandage, by R.J. Collie. Source: Wellcome Collection.

    21/200 (page 17)
    The blood, on leaving the heart, passes through three kinds of vessels, arteries, capillaries, and veins. To make one complete circuit the blood must pass twice through the heart, and twice through arteries, capil- laries, and veins. It is best at first to divide the circulation into its two parts, and to consider them separately. First, the lesser, purifying, or lung circulation. Secondly, the greater, nourishing, or body circulation. The heart is divided into halves, between which there is no direct communication. In the lesser circulation the blood leaves the right side of the heart by an artery, and passes through the capillaries of the lungs, returning through veins to the left side of the heart. In the greater circulation the blood leaves the heart by a large artery, the aorta. This gives off branches which again divide and sub-divide, until they finally branch into capillaries throughout the entire body, even includ- ing the substance of the lungs which could not be nourished by the impure blood from the right side of the heart. These capillaries join, branch off, and com- municate, forming a regular network, finally running together and forming small veins, which soon unite to form larger, these again uniting until at length two large veins are formed, which open into the right side of the heart, one collecting the blood from the upper, and the other from the lower part of the body. Each side of the heart is divided into two chambers, ot cavities; the upper ones are called auricles, because they outwardly look somewhat like dogs’ ears, and the lowei ventricles, since they form the body of the heart. The walls of the auricles are very thin, but the wall of the ventricles are very strong; the left ventricle is c