The blood is coloured red by haemoglobin in blood corpuscles.
Blood coloured red with haemoglobin.
For the Heteronemertines arguments have been adduced to prove that here they have the physiological significance of a special respiratory apparatus for the central nervous tissue, which in all these forms is strongly charged with haemoglobin.
Haemoglobin is extracted from the blood of an ox and may be administered in bolus form.
At the same time the non-striped muscles slightly lose their tonicity, and when very large doses are given the haemoglobin of the blood becomes converted into the chocolate-coloured methaemoglobin.