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Can a blood clot in the leg cause swelling? If so, would swelling be noted above the clot or below, or both?
Generally, the condition is called edema. The region of the edema due to the blood clot or thrombus is painful to palpation. There are veins seen very often in that...
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Why does blood clot outside our body? Why doesn't it clot inside our body?
Blood clotting factors are intrinsic and extrinsic. Intrinsic factors when are in cells, tissues and plasma blood do not clot. Some of the factors as surface activation factor stimulates blood...
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Is the influence of blood vessel diameter on peripheral resistance insignificant because vessel diameter does not vary, or is it directly proportional to the blood vessel diameter?
Peripheral resistance is inversely proportional to the fourth power of the blood vessel diameter. $"TPR" ∝ 1/r^4$ or $"TPR" ∝ 1/d^4$
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Which vitamin help in blood clotting?
Decreased concentrations of vitamin K and vitamin K hydroquinone in the tissue , results in inefficient carboxylation reaction catalysed by glutamyl carboxylase . This results in the production of...
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What is hemoglobin, and does it help with blood clotting?
Platelets are the part of blood that is responsible for blood clotting. When we cut ourselves, the blood seeps out, carrying platelets. The platelets stick to the injured area and...
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Are there any foods that can help clot blood for people with bleeding disorders?
Clotting of blood is due to more than 12 factors. Few factors are in the body like Pro thrombin and fibrinogen. If your food is with low vitamin K clotting...
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Why doesn't donated blood clot while it's in the bag? Or does it?
The blood is usually stored in a flexible plastic bag that contains sodium citrate, phosphate, dextrose and sometimes adenine. This combination keeps the blood from clotting and preserves it during...
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What stops the white blood cells from attacking our own body cells? What is the role of the lymphatic system in the maturation of all the different types of white blood cells?
What stops the white blood cells from attacking our own body cells? White blood cells act on antigens, which signal that a certain molecule is foreign. Bodily cells lack these...
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How do white blood cells know what to kill? How do white blood cells know to kill bacteria cells and not human cells. How do they differentiate between the two?
The body recognizes chemical structures that are made by bacteria and quite different from chemicals made by higher organisms. These chemical structures include the special carbohydrates (sugars) and lipids that...
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If there are 23 pairs of chromosome in a human cell, then does that mean that there are billions of chromosomes in our body since there are billions of cells?
Each cell is having 23 pairs of chromosomes in a somatic cell. The chromosomes have genes. Each chromosome is with number of set genes. Even though each cell is with...
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