Haemoglobin
is the pigment-protein complex that contains iron. Complex is red and there is
the eritrosit. A haemoglobin molecule has four haeme group which contains iron
and fero four globin chains. There are several forms of haaemoglobin: type
fetal (HbF) and the two main forms of adult haemoglobin (HbA1 and HbA2).
Haemoglobin takes oxygen, some carbon dioxide and the pH changes. Glycosylated
haemoglobin (HbA1) ---> HbA1 level indicates the blood sugar over a period
of several months and can be used to assess the degree of control on Diabetes
mellitus. Hb normal value for men is 13% gr - 18 gr%, and for women is gr 11.5%
- 16.5 gr% (Brooker, 2001).
Haemoglobin is a substance contained within the red blood cell (erithrocyte) and responsible for their colour, composed of the pigment haem (an iron - containing porphyrin) linked to the protein globin. Haemoglobin has the unique property of combining reversibly with oxygen and is the medium by which oxygen is transported within the body. it take up oxygen as blood passes through the lungs and releases it as blood passes through the tissues. Blood normally contains 12-18 g/dl of haemoglobin.
Myohaemoglobin : an iron – containing protein, resembling haemoglobin, found in muscle cell. Like haemoglobin it contains a haem group. Which binds reversibly with oxygen, and so acts as an oxygen reservoir within the muscle fibres.
Oxyhaemoglobin : the bright – red substance formed when the pigment haemoglobin in red blood cell combines reversibly with oxygen. Oxyhaemoglobin is the form in which oxygen is transported from the lungs to the tissues, where the oxygen is released.
Methahaemoglobin : a substance formed when the iron atoms of the blood pigment haemoglobin have been oxidized from the ferrous to the ferric form (compare oxyhaemoglobin). The methahaemoglobin cannot bind molecular oxygen and therefore it cannot transport oxygen round the body. The presence of methahaemoglobin in the blood (methahaemoglobinaemia) may result from the ingestion of oxidizing drugs or from an inherited abnormality of the haemoglobin molecule. Symtomps include fatigue, headache, dizziness and cyanosis (oxford electric medical dictionary).
Haemoglobin is a substance contained within the red blood cell (erithrocyte) and responsible for their colour, composed of the pigment haem (an iron - containing porphyrin) linked to the protein globin. Haemoglobin has the unique property of combining reversibly with oxygen and is the medium by which oxygen is transported within the body. it take up oxygen as blood passes through the lungs and releases it as blood passes through the tissues. Blood normally contains 12-18 g/dl of haemoglobin.
Myohaemoglobin : an iron – containing protein, resembling haemoglobin, found in muscle cell. Like haemoglobin it contains a haem group. Which binds reversibly with oxygen, and so acts as an oxygen reservoir within the muscle fibres.
Oxyhaemoglobin : the bright – red substance formed when the pigment haemoglobin in red blood cell combines reversibly with oxygen. Oxyhaemoglobin is the form in which oxygen is transported from the lungs to the tissues, where the oxygen is released.
Methahaemoglobin : a substance formed when the iron atoms of the blood pigment haemoglobin have been oxidized from the ferrous to the ferric form (compare oxyhaemoglobin). The methahaemoglobin cannot bind molecular oxygen and therefore it cannot transport oxygen round the body. The presence of methahaemoglobin in the blood (methahaemoglobinaemia) may result from the ingestion of oxidizing drugs or from an inherited abnormality of the haemoglobin molecule. Symtomps include fatigue, headache, dizziness and cyanosis (oxford electric medical dictionary).
