The food must be digested, absorbed and excreted with great rapidity.
The cells which line them and also the cavities of the tubes contain urates, which are excreted from the blood in the surrounding bodycavity.
The protoplasm derives its food from substances in solution in the water; the various waste products which are incident to its life are excreted into it, and so removed from the sphere of its activity.
But it also appears that honeydew may be excreted by ordinary processes of over-turgescence pressing the liquid through water-pores, as in the tropical Caesalpinia, Calliandra, &c. That these exudations on leaves should afterwards serve as pabulum for Fungie.g.
It is excreted when many aromatic compounds, such as benzoic acid and toluene, are taken internally.
Haematoidin in normal metabolism is largely excreted by the liver in the form of bilirubin.
Sodium is excreted by all the mucous surfaces and by the liver and kidneys.
'They are quickly excreted in the urine, rendering it alkaline and thus more able to hold uric acid in solution.
Clinically it is to be observed that the drug is cumulative, being very slowly excreted, and that after it has been taken for some time the pulse may become irregular, the blood-pressure low, and the cardiac pulsations rapid and feeble.
Death is to be averted by such measures as will keep the heart and lungs in action until the drug has been excreted by the kidneys.
Benzoic acid is also excreted by the bronchi and tends to disinfect and stimulate the bronchial mucous membrane.
It is also excreted in the milk; hence the danger in the administration of large doses of morphine to nursing mothers.
The drug circulates in the blood in the form of an albuminate and is slowly excreted by the kidneys.
As it is largely excreted by the lungs it may be found useful in bronchial asthma.
It is usual to reduce the quantity of proteid food to a minimum, in order to lessen the amount of nitrogenous waste to be excreted by the kidneys.
It is excreted by all the secretions and excretions of the body.
On the skin its action is that of a diaphoretic, and being also excreted by the bile it acts slightly as a cholagogue.
In the case of these red-purple bacteria the colouring matter is contained in the protoplasm of the cell, but in most chromogenic bacteria it occurs as excreted pigment on and between the cells, or is formed by their action in the medium.
The suggestion that it is due to the oxidation of a body excreted by the bacteria seems answered by the failure to filter off or extract any such body.
This must be repeated at intervals of about half an hour, since some of the opium is excreted into the stomach after its absorption into the blood.
Quinine is excreted in some degree by nearly all the glands of the body, but mainly by the kidneys.
This conclusion is further confirmed by the observation that the amount of carbonic acid excreted by the lungs is also diminished.
The uric acid excreted in the urine (mostly in the form of urates) is markedly diminished.
Each of these cavities presumably excreted waste products to the exterior by a pore.
The amount of iron existing in the human blood is only 38 gr.; therefore, when an excess of iron is absorbed, part is excreted immediately by the bowel and kidneys, and part is stored in the liver and spleen.
The drug is excreted partly by the bronchi - which it tends to disinfect - and partly in the urine, which it causes to smell of violets.
This effect is the same however the drug be administered, as, even after subcutaneous injection, the arsenic is excreted into the stomach after absorption, and thus sets up gastritis in its passage through the mucous membrane.
Recent researches on arsenic and atropine, however, point to the leucocytes as playing an important part in the production of tolerance, as these gradually become capable of ingesting large amounts of the foreign substances, and thus render them more or less harmless to the tissues, until they are gradually excreted from the body.
The explanation in these cases is that the drug is absorbed more rapidly than it is excreted, hence there is a tendency to accumulation in the body until a point is reached when the amount becomes poisonous.
In the intestine they combine with ammonia and other alkalis present, and are absorbed into the blood as neutral salts, being excreted chiefly in the urine.
After absorption into the blood, which they make somewhat more alkaline, they are excreted chiefly in the urine, to which they impart an alkaline reaction if given in sufficient quantity.
From the stomach and intestines they are rapidly absorbed, and rapidly excreted from the blood, increasing all secretions and the general metabolism.
A few of them, such as aloin and colocynthin, are also purgative when injected subcutaneously or into the blood, probably owing to their being excreted into the intestinal canal.
They are readily absorbed into the blood, and they are excreted chiefly by the kidneys in a more or less altered form, and probably also by the different mucous membranes, and even by the skin.
They are mostly excreted in the urine.
The patient who survives half-an-hour will probably recover, as the volatile acid is rapidly excreted by the lungs.
The skin consists of a transparent cuticle excreted by the underlying ectoderm, the cells of which though usually one-layered may be heaped up into several layers in the head; beneath this is a basement membrane, and then a layer of longitudinal muscle fibres which are limited inside by a layer of peritoneal cells.
It is excreted very slowly and therefore accumulates in the system.
Many of the coloured pigments of fungi are fixed in the cell-walls or excreted to the outside (Peziza aeruginosa).
For these conditions it is administered in the form of a lozenge, but may also be swallowed in solution, as it is excreted by the saliva and so reaches the diseased surface.