The laws of health / [David Nunes Nabarro].

  • Nabarro, David Nunes, 1874-
Date:
[1905?]
Catalogue details

Licence: In copyright

Credit: The laws of health / [David Nunes Nabarro]. Source: Wellcome Collection.

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    the neck, armpits, and elsewhere in the body. The white corpuscles also help to heal injuries such as cuts, ulcers, and even broken bones. 69. To sum up, then, we may say that the blood- liquid (1) takes food nourishment to all the tissues, and (2) brings away the waste materials, carbonic acid gas and urea, from them. The red blood-corpuscles act as carriers of fresh air or oxygen to all parts of the body. The white corpuscles help to destroy the microbes of disease and to heal injuries. 70. The blood going to the tissues contains much food nourishment and much oxygen, and is therefore good blood. The blood coming from the tissues contains little food nourishment and oxygen, but much of the waste substances, urea and carbonic acid gas, and is therefore bad blood. Good blood, containing much oxygen, is bright red in colour. Bad blood, containing much carbonic acid gas, is dark purple in colour. Bad blood is purified in the lungs during breathing, so we find that the blood going to the lungs is dark purple in colour, while the blood coming from the lungs is bright red. You see that even in health there is always bad blood in some parts of the body, but it is being con- stantly purified in its passage through the lungs and kidneys. 71. In many diseases the blood is bad in all parts of the body. The blood may contain too few red cells, and is then very pale in colour. Such a condition is called ancemia, or poorness of blood. When the lungs or heart are badly diseased, the blood always contains too much carbonic acid gas, and is therefore darker in colour than usual, When the kidneys are diseased, the waste
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