The study of blood, the blood-forming organs, along with blood diseases and their treatment
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Is it possible to condition the body to reduce bruising?
I do combat sports, and in these sports there are a lot of hits that can cause bruising.
I've found that, over time, physical conditioning can reduce and/or eliminate the bruising to the point where ...
6
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1answer
65 views
Why does oxygen bind to hemoglobin in an specific angle?
There is an specific angle of the bond between oxygen and hemoglobin in lungs, which I don't know, but what interests me more is the question, why is it specific?
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1answer
50 views
Can antibodies be formed against white blood cells after blood transfusion?
If antibodies are produced against other blood group's RBC , why can't antibodies form against WBC , of any blood group? ( even the same one , as MHC will be different in almost all individuals )
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45 views
DIY food intolerance testing ELISA
I recently purchased an expensive food allergy kit which reportedly tested 59 types of food, what I found was actually consistent with my experiences despite health experts saying they are not ...
4
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1answer
129 views
Why does blood come from mouth when people are shot in the chest area?
In almost every movie scene when a character is shot in the chest area, some blood comes from his mouth or sometimes even coughs blood before he dies.
Are these kind of scenes realistic/possible? If ...
3
votes
1answer
48 views
Why it is so difficult to treat leukemia?
I want to ask what is the reason that T315I type CML leukemia is currently untreatable. I have read quite a few papers in this subject. Why the current genetic oriented engineering drugs failed to ...
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0answers
36 views
How is a blood sample analyzed to give the different levels of metabolites?
How is a blood sample analyzed to give the different levels of metabolites?
Are there any any procedural differences with each blood test?
Thanks in advance!
1
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2answers
117 views
Iron deficiency anemia symptoms explanation
In my classes and on the internet, brittle nails and dry hair (or hair loss) are described as symptoms of iron deficiency anemia, but none explains the cause of such symptoms.
Does anyone have any ...
4
votes
1answer
155 views
How much does donating blood affect the amount of oxygen in your blood stream at high altitude?
I am a regular blood donor and I am also a skydiver. We normally go to around 13,000 feet AGL (above ground level). Depending on how high above sea level the ground is, altitudes could be as high as ...
4
votes
1answer
56 views
How can the child and the mother have different blood types?
As far as I know the fetus is fed by the umbilical cord which basically connects his/her circulatory system with the mother's in order to supply oxygen and nutrients. But how is this possible if they ...
11
votes
2answers
395 views
Why do people have antibodies against other blood types?
The ABO blood type divides each blood type according to whether they have the "A" and "B" antigen(s) (AB has both, O has none). People also have antibodies against the antigens they don't have (AB has ...
6
votes
2answers
334 views
Can positive and negative blood type of a couple lead to miscarriage?
I want to know can $+ve$ and $-ve$ blood group of a couple could be a cause of miscarriage in pregnancy?
3
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0answers
32 views
What percentage of human capillaries are located in the skin?
As in the subject line, what percentage of capillaries in a human (expressed in terms of total length, I suppose) are located in the skin, as opposed to internal organs? Google scholar has not turned ...
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1answer
30 views
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1answer
114 views
Are tongues red because they contain blood?
Many animals have red tongues, though not all of them - blue-tongued skinks and giraffes come to mind. Are they red because of the blood (and therefore haemoglobin) in them?
It sounds plausible, but ...
6
votes
1answer
83 views
When giving blood, what is the specific Iron measurement they take?
I went to give blood the other day, and they take an "iron" measurement prior to actually drawing the blood. My level was 16.4 -- but what specific type of iron were they measuring?
I've heard of ...
0
votes
2answers
231 views
What part of food gives the blood red color?
Roughly, what I know is, when we eat food it goes into our: Stomach > Small Intestine > Large Intestine > Rectum. So, it just moves through a digestive pipe.
What I don't understand is, what part of ...
9
votes
1answer
2k views
Origin, or source, of rhesus negative in human blood
This is my first post here, so please be gentle. I recently learned that I have Rh- blood (I'm A-), and was idly looking into blood types on Wikipedia. I was surprised to find that relatively few ...
12
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1answer
3k views
Why do mammalian red blood cells lack a nucleus?
How did the red blood cell in humans get to lose its nucleus (and other organelles)? Does the bone marrow just not put the nucleus in, or is it stripped out at some stage in the construction of the ...
20
votes
3answers
2k views
Is there any advantage to one blood type over another?
All humans can be grouped into ABO and Rh+/- blood groups (at a minimum). Is there any advantage at all to one group or the other? This article hints that there are some pathogens that display a ...
9
votes
1answer
129 views
Does the oxygen concentration equilibrate between red blood cells in the liver sinusoids?
In the sinusoids of the liver, venous blood from the hepatic portal system mixes with arterial blood from the hepatic arteries.
Do oxygen molecules move between oxygenated RBCs and non-oxygenated ...
10
votes
1answer
173 views
What are the clotting factors' effect on avascular necrosis development?
Do clotting factors tpa and pai-1 lead to degenerative osteoarthritis in the same way that lupus anticoagulant and prothrombin might? Is one of these pathways particularly detrimental during formation ...
18
votes
1answer
345 views
Are lymphocyte sizes clustered in two groups?
Tortora writes in Principles of Anatomy and Physiology:
Lymphocytes may be as small as 6–9 μm in diameter or as large as 10–14 μm in diameter.
Those ranges are quite close to each others. Should ...
