In association with this, oxyhaemoglobin has a typical bright red colour, whereas haemoglobin is dark purple.
A further striking characteristic of haemoglobinis that it contains iron in its molecule.
In the lower vertebrates the blood pressure is low and the haemoglobin content of the blood is low, consequently both rate of blood-flow and oxygen-content are low.
It is proved, however, that the destruction of the haemoglobin is entirely effected there.
As haemoglobin is the medium of respiratory interchange, its diminution causes obvious symptoms, which are much more easily appreciated by the patient than those caused by alterations in the plasma or the leucocytes.
The amount present, though small bears a perfectly definite quantitative relation to the amount of oxygen with which the haemoglobin is capable of combining (two atoms of oxygen to one of iron).
On the other hand, they did not begin to lose their haemoglobin till the proportion of salt was reduced to below .
The diluted solution is gradually increased in strength until, when a drop of blood is added to it, the corpuscles are just precipitated, and no haemoglobin is dissolved.
Many colloids such as haemoglobin are crystallizable, and many crystallizable substances are coagulable.
The albuminoid of the cell nucleus also contains phosphorus, and the haemoglobin of the blood contains iron.
In a hypotonic solution they swell up and burst, thehaemoglobin dissolving in the liquid and colouring it red.
During this phase of life also, the blood becomes more venous in quality and its haemoglobin value is lowered.
The first is based on the fact that the iron in the haemoglobin of the blood must be derived from the food, therefore iron medicinally administered is absorbed.
Haemoglobin is extracted from the blood of an ox and may be administered in bolus form.
Iron being a constituent part of the blood itself, there is a direct indication for the physician to prescribe it when the amount of haemoglobin in the blood is lowered or the red corpuscles are diminished.
Although closely related to haemoglobin or its derivative haemochromogen, the histohaematins are yet totally distinct, and they are found in animals where not a trace of haemoglobin can be detected.
It is a curious and noteworthy fact that in some invertebrate animals in which no haemoglobin occurs, we meet with its derivatives.
No direct connexion has been traced between the chlorophyll eaten with the food and the haemoglobin of blood and muscle.
In some worms the transparent skin allows the haemoglobin of the blood to be seen through the integument, and in certain fishes also the haemoglobin is visible through the integument.
Haemoglobin is said to be found as low down in the animal kingdom as the Echinoderms, e.
Gamgee have found to be characteristic ofhaemoglobin and its compounds.
In extreme cases the proportion of haemoglobin in the blood may be reduced to 50 or 60 per cent.
Leichtenstern has observed that toward the end of life the relative proportion of haemoglobin in the blood may be increased, sometimes rapidly, and may even exceed the normal limit.
Blood which has been acted upon by the gastric juice is coagulated, has a grumous consistence, and acquires by the formation of haematin out of haemoglobin a dark-brown color, often compared to that of coffee-grounds.
Thus, the luminescence requires only a low pressure of oxygen and the similarity to the saturation of haemoglobin with oxygen is obvious.
Whether a similar change occurs when oxyluciferin is reduced or whether oxygen is actually added as in formation of haemoglobin cannot be definitely stated at present.
Just as haemoglobin is nearly saturated with oxygen at low pressures and becomes bright red in color, so the luminous material becomes saturated with oxygen at low pressures and glows intensely.
As we shall see, it is probably similar to the oxidation of reduced haemoglobin or the oxidation of leuco methylene-blue to methylene blue.
In this respect the luminescence intensity--oxygen tension curve is no doubt very similar to the haemoglobin saturation--oxygen tension curve.
As the haemoglobin does not lose this power on boiling, whereas luciferase does, the analogy is far from perfect.
Oxidation with H{2}O{2} and haemoglobin or vegetable oxidases.
No influence was exerted on the corpuscles and the haemoglobin of the blood.
The oxygen contained in that fluid, and destined for consumption by the tissues, is retained by the influence of alcohol in its combination with the haemoglobin or colouring matter of the red blood corpuscles.
The red cells are diminished, but usually are not below eighty per cent of the normal; the haemoglobin is greatly reduced, sometimes to thirty-five or forty per cent.
Haemoglobin is the coloring matter of the red corpuscles.
In their case, also, a diminution ofhaemoglobin is observable during the period of incubation.
An increase of the quantity of haemoglobin until the normal amount is reached may be observed in both towards the end of incubation.
This is the result of the very considerable destruction of the blood-corpuscles which takes place, the haemoglobin of which is absorbed by the parasites as nutriment.
The reaction is due to the oxidation of the resin by the peroxide of hydrogen--such oxidation occurring only if haemoglobinbe present to act as an oxygen-carrier.
This change in the spectrum is due to the passing of the haemoglobin into methaemoglobin, which may be considered as an intermediate stage of decomposition, prior to the breaking up of the haemoglobin into haematin and proteids.
A spectroscopic examination of the blood showed weak haemoglobin bands, and a narrow band in the red.
When either a solution of haemoglobin or blood is exposed to the air for some time, it loses its bright red colour, becomes brownish-red, and presents an acid reaction.
With farther dilution, the haemoglobinbands vanished, but the band in the red remained.
Chloroform added to blood, or passed through it in the state of vapour, causes it to assume a peculiar brownish colour owing to destruction of the red corpuscles and solution of the haemoglobin in the plasma.
This test depends upon the fact that a solution of haemoglobin develops a beautiful blue colour, if brought into contact with fresh tincture of guaiacum and peroxide of hydrogen.
According to the measurements of Gamgee, the band [alpha] of CO-haemoglobin has its centre approximately at W.
The oxygen is expelled, the haemoglobin destroyed, and the blood corpuscles dissolved.
Greenish patches may now appear on the different parts of the body, earliest upon those overlying the internal cavities; this discoloration is probably produced by the action on the haemoglobin of gases developed by decomposition.
The same fact would be observed if a few drops of blood were substituted for haemoglobin in the analysis.
Destroyed haemoglobin has a different spectrum from oxygenated haemoglobin, a single absorption band as large as the two former bands united, and a little to the left of Frauenhofer's line D.
In a case of doubt the haemoglobin of the blood could be reduced by adding to this latter a reducing body.
This transformation is reversible, and suggests a similarity to the change from haemoglobin to oxyhaemoglobin, and the reverse, in the blood of animals, as a part of their respiration process.
It is known, of course, that the gaseous exchanges involved in animal respiration are accomplished through the reversible change of haemoglobin to oxyhaemoglobin, these being the characteristic blood pigments.
What could be more effective in treating the anaemic condition of wounded and crippled boys, and in treating the same condition in women industrial workers, than haemoglobin eggs?
Such eggs might be justly classed as haemoglobin eggs, and they would be a godsend to our boys suffering from anaemia due to wounds or operations.
Insofar as haemoglobin hastens the departure of the excrementitious matter in urine out of the system, there is a daily loss of iron in the urine.
In other words I am able to produce special eggs for a given tissue degeneration as, for instance, haemoglobin eggs for degenerate blood; lecithin eggs for the nerves; calcareous eggs for the bones, and kaliated eggs for the muscle.
Amongst other work, McLean carried out monthly observations on six men, determining the colour-index and haemoglobin value of their blood over a period of ten months.
The haemoglobin or red colouring-matter went up with a leap and then very steadily increased in amount during the winter months in Adelie Land.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "haemoglobin" in a variety of sentences. We hope that you will now be able to make sentences using this word.
