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Blood
Blood is a bodily fluid consisting of plasma, blood cells, and platelets that is circulated by the heart through the vertebrate vascular system, carrying oxygen and nutrients to and waste materials away from all body tissues. In many species, it also carries hormones and disease-fighting substances. In this category, you will find questions about the blood in your body, including blood types, blood diseases, and the function of blood.
9,936 Questions
What does a high lymphocyte and a high MCH count mean?
Mean Corpuscular Hemoglobin (MCH) Normal Range: 26-34 pg (picograms/cell)
The mean corpuscular hemoglobin, or "mean cell hemoglobin" (MCH), is the average mass of hemoglobin per red blood cell in a sample of blood. It is reported as part of a standard complete blood count.
It is diminished inmicrocytic anemias and increasedin macrocytic anemias.
It is calculated by dividing the total mass of hemoglobin by the number of red blood cells in a volume of blood. MCH=Hgb/RBC reference: http://en.wikipedia.org/wiki/Mean_corpuscular_hemoglobin
---- Macrocytic Anemia
* Types of macrocytic anemias ** 1.1 Megaloblastic anemias (DNA replication disorders) ** 1.2 Red cell membrane disorders producing codocytes ** 1.3 Alcohol ** 1.4 Association with rapid red cell turnover and reticulocytosis * Especially common causes of macrocytic anemias are the so-called megaloblastic anemias, in which cells are larger because they cannot produce DNA quickly enough to divide at the right time as they grow, and thus grow too large before division. Causes for the DNA synthetic problem range from lack of certain vitamins needed to produce DNA (notablyfolate and B12), to poisons or inhibitors of DNA replication, such as some kinds of antiviral drugs and chemotherapeutic agents.
The remainder of the article can be seen on the following page
reference: http://en.wikipedia.org/wiki/Macrocytic_anemia
* Macrocytosis, sometimes without associated anemia, is often evident in persons with chronic alcoholism. Although the macrocytosis of alcoholism may be secondary to poor nutrition with a resulting folate or vitamin B-12 deficiency, it is more often due to a direct toxicity of the alcohol on the marrow. The macrocytosis of alcoholism usually reverses only after months of abstinence from alcohol. The remainder of the article can be seen on the following page
reference: http://www.emedicine.com/med/topic1381.htm
When do lymphocytes become immunocompetent?
each lymphocyte must become able (competent) to recognize its one specific antigen bye binding to it. this ability is called immunocompetence.
Basophils are one of the formed elements of blood. Basophils are the least common type of white blood cell. The formed elements of blood are red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).
Why is it dangerous to lose a quart of blood?
Well, to start off your blood pressure will be very low which means your organs will not be supplied with enough blood and your heart has to work a lot harder. Since there will not be enough blood being supplied, your organs will be deprived of oxygen and glucose and your organs will start shutting down. This is also known as shock. In this case, the most important organ will be your brain, which won't be getting enough blood. You will then become unconscious due to lack of oxygen to the brain and most probably die.
How does hemoglobin change after exercise?
Because your body is working "overtime" because you are exercising, your muscles and all your body organs are needing more energy and oxygen, this is because your body is working more than usual. Your body needs to do many things such as sweat, which helps you cool down, and to get energy to all of your cells in your body to help you carry on exercising, if your body didn't do this, then you wouldn't be able to carry on exercising. The blood supply then has to increase because it has to go to the parts in your body which you are exercising the most eg. If you are taking a run, the blood supply will increase because your legs will need more energy, therefore there will be more blood circulating your legs than normal because you are overworking them? Does this make sense?
Why did you pass out when you were giving blood?
You shouldn't ! As a long-term blood donor (over 35 years) myself, I've never passed out after donating. The amount you donate (500ml) is approximately 10% of your total blood volume - an amount the body can lose without detrimental effect. It's replaced by the body within a few days of donating. Common causes of feinting after giving blood are either (1) they haven't eaten before donating, or (2) haven't rested a short while afterwards. Feinting after donating is a rare event.
Which structure would normally contain deoxygenated blood?
The circulatory system carries oxygenated blood to the body.
^more specifically, the arteries in your circulatory system do.
Circulatory system is the container for blood.
Artery- 02 rich blood
Venous- 02 poor blood
What is the normal range of heartbeat?
Age Group Normal Heart Rate at Rest Children (ages 6-15)70-100 beats per minute. Adults (age 18 and over) 60-100 beats per minute.
The blood in what vessels contains the least amount of waste in the body?
The pulmonary veins have the least amount of waste.
Which is the correct path of filtered blood through the kidney?
From the renal corpuscle (first the afferent arteriole feeds the glomerulus, which is then drained by the efferent arteriole) and passes on to the renal tubules (passes into the proximal convoluted tube, into the descending and ascending loops of Henle, and the distal convoluted tube)
Is 16000 white blood cell count high?
Hi I am know doctor but I did look on the web for a answer , The SBC in humans is around 45000/μl, so it would appear normal to me . ref . http://www.biomedcentral.com/1471-2121/9/26
There are several different types of white blood cells (leukocytes) which are usually characterized as granulocytes and agranulocytes.
Granulocytes (polymorphonuclear leukocytes) are leukocytes characterized by the presence of differently staining granules in their cytoplasm when viewed under light microscopy. There are three types of granulocytes: neutrophils, basophils and eosinophils.
Agranulocytes (mononuclear leucocytes) are leukocytes characterised by the apparent absence of granules in their cytoplasm. These cells include lymphocytes, monocytes and macrophages.
- neutrophils live for 6 hours to a few days
- basophils live for a few hours to a few days
- eosinophils live for 8 to 12 days
- lymphocytes live from weeks up to years
- monocytes live for hours to days
- macrophages live for only days when they are activated and from months to years when they are immature.
Is it normal for blood to come out of your anus when you poop?
No, that's because your eating and drinking hot foods like coffee tea coke pista etc so avoid those food stuff and drink apple juice , grape juice , orange juice or glucose water or normal water and eat apple , curd ,orange ,grapes etc first try what I wrote here if this doesn't work visit a doctor and try it atleast 3 to 4 weeks pls I hope this was helpful if it was ur welcome
Is your blood blue before it comes in contact with oxygen?
Veins close to the surface of the skin appear blue for a variety of reasons. However, the factors that contribute to this alteration of color perception are related to the light-scattering properties of the skin and the processing of visual input by the visual cortex, rather than the actual color of the venous blood.
What is normal range of WBC in blood?
There are normally between 4×109 and 11×109 white blood cells in a litre of blood, making up approximately 1% of blood in a healthy adult.
Then there are 4 types of white blood cell (WBC) --
Neutrophils - which make up about 50 - 60% of WBCs
Lymphocyte - about 30-40% of WBCs
Eosinophil - 1-5% of WBCs
Basophil - less than 1% of WBCs
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What is the major difference between plasma and serum?
The blood contains substances such as minerals, proteins and nutrients that are needed for the development of cells, tissues and organs.
Plasma is usually quoted as the substance that stays behind in the blood when the red blood cells are taken out. It is the yellow, liquid part of the whole blood, which makes up 55 percent of the whole blood, and it is about 90 percent water
Blood comprises of four main parts plasma, serum, red blood cells (cells that carry oxygen) and white blood cells (cells that fight foreign bodies.
Plasma is a transparent and yellowish fluid part of the blood. This is the part of the blood that contains fibrin and other clotting factors. About 55% of the total blood volume is Plasma . The main part of blood plasma is water.
Red blood cells exist in a disc shape while white blood cells exist in irregular shapes. Red blood cells contain hemoglobin while the contents of white blood cells vary with different types. Hemoglobin makes red blood cells red while a "buffy coat" gives white blood cells a white-like appearance.
What is the medical term meaning spread of cancer?
A tumor that has spread has metastasized, and is a metastatic tumor. The new sites of tumor growth are called metastases (singular metastasis).
The process of metastasis is the process of tumour cells breaking away from the primary tumour and spreading to other parts of the body. The 4 main sites of metastasis are the brain, bones, liver and lungs. Metastatic tumours spread to these organs causing considerable harm to them. The naturopathic approach to controlling metastasis is salvestrol therapy. Anti-metastatic drugs are in clinical trials such as
Cabozantinib.
A tumor that has spread has metastasized, and is a metastatic tumor.
What are the step in the blood clotting process?
The 3 stages of hemostasis are:
1) Vascular Spasm where there is a high resistance to blood flow as arterioles leading to the damaged area vasoconstrict.
2) Platelet Plug: is wher sticky cell fragments adhere to the site of the damaged blood vessel and the aggregated platelets secrete Adenosine Diphosphate causing more platelets to aggretage and congrugate around the blood vessel
3) Blood Clots: blood clots become trapped in fibrin mesh....fibrin comes from fibrinogen and goes through a process to form fibrin called coagulation cascade. The fibrin adhere to one another forming a mesh. The mesh becomes stronger by Factor VIII stabalizing the bond on the fibrin.
What helps move blood in your body?
Since the blood in your veins is traveling back to your heart, it is fighting gravity. In order to help the blood along, veins have valves that will close after the blood has gone through to prevent backflow. Also, when muscles contract, it pushes the blood upwards because of the contraction.
Why are platelets so important?
Platelets are the "clotting" factors of blood. They stick together to form clots and seal up cuts in blood vessels. Take a scab for instance, a scab is nothing more than dried up, exposed blood platelets sealing off a wound from infection.
