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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 technical factors can affect the quality of a hematocrit results?

Several technical factors can affect the quality of hematocrit results, including sample collection, handling, and processing. Inadequate mixing of blood samples can lead to uneven distribution of cells and plasma, while prolonged storage or exposure to temperature fluctuations can cause cellular degradation. Additionally, using incorrect centrifugation speeds or times can result in inaccurate separation of components. Finally, the presence of hemolysis or clotted samples can further compromise the reliability of hematocrit measurements.

Where are platelets made?

platelets are formed in the marrow of long bones

Why should you have a healthy blood sugar?

because blood is part of what keeps you alive, almost everything that keeps you alive and therefore you should keep healthy and you should value your life by keeping healthy. Many deaths are because of unhealthy or infected blood and you should therefore keep your blood health.

How would damage to left bundle affect blood flow in systemic circulation?

Left ventricle wouldn't be able to contract so that oxygenated blood could get to the body tissues.

Can a human live on 4 units of blood?

How many units of blood are in a human

What are Myelodysplastic or myeloproliferative diseases?

A myeloproliferative neoplasm(MPN) are a group of bone marrow diseases which may develope into acute myeloid leukemia or myelodysplastic syndrome in the worst case scenarios. The cause is a genetic change (mutation).

How does the human body move?

Muscles move on commands from the brain. Single nerve cells in the spinal cord, called motor neurons, are the only way the brain connects to muscles. When a motor neuron inside the spinal cord fires, an impulse goes out from it to the muscles on a long, very thin extension of that single cell called an axon. When the impulse travels down the axon to the muscle, a chemical is released at its ending. Muscles are made of long fibers connected to each other longways by a ratchet mechanism, the kind of mechanism that allows the two parts of an extension ladder to slide past each other and then lock in a certain position. When the chemical impulse from the motor neuron hits the muscle, it causes to muscle fibers to rachet past each other, overlapping each other more, so that the muscle gets shorter and fatter. When the impulses from the nerves stop, the muscle fibers slide back to their original positions. Each motor neuron connects to just one muscle, say the bicep on the front of your upper arm that lifts your forearm, or to the triceps, the one on the back that extends your forearm. But when you move, you never think, "I'd like to contract my bicep two inches and relax my tricep two inches" -- instead you think, "I'd like to put this cake in my mouth!" How does the brain translate from the general idea to lift something to your mouth to specific commands to muscles? It does it in stages. In the cerebral cortex, the commands in the neurons there represent coordinated movements - like pick up the cake, hit the ball, salute. The cortex then connects to a sort of console in the spinal cord that overlays the motor neurons. This console lays out arm position in space, up-down, left-right. Each desired arm position then is read out as a collection of specific commands to each motor neuron and muscle.

from http://www.ccmr.cornell.edu/education/ask/index.html?quid=352

What is one harmful substance that may pass from the mothers blood to the baby's blood?

A baby and its mother use different bloods. However, the placenta, that allows nutrients to pass into the baby, can also allow harmful substances.

How much blood should one lose during their period and how much is too much?

Hello. It varies greatly how much blood a woman loses during her period. Extreme bleeding during your period is considered as heavy bleeding that requires the Woman to change her sanitary towel every 1-2 hours.

What is the normal range for blood sugar?

For a non-diabetic person the blood glucose level should be between 4 and 8 mmol/l. Normal glucose range in UK is between 4-8mmol/l. Levels will increase within 2 hours after meals. In the US, a normal value is less than 120mg/dl (note different units!) .

Does plasma contain clotting factors?

fibrinogen is one of the plasma proteins and it has the main role in the clotting process as it is converted by the effect of thrombin ( active enzyme ) into fibrin that accumulates forming a network that block the injured blood vessel

What is the difference between blue blood and red blood?

red blood is oxegenated; it has oxygen in it

blood blood is not oxygenated; it does not have oxygen in it

Arteries have red blood in them; they go to muscles so the muscles can use the oxygen, Veins have blue blood in them; they go back to the heart to go to the lungs to get oxygen

when you get cut, even in a vein, the blood is red because when the blood comes out it becomes oxygenated. Although, when an artery gets gut it is bright red, although when a vein gets cut it is dark red. JACOB PONTOW IS A BEAST

^ who the heck is he?

Can a drug serum level be drawn from a PICC line?

Yes, provided that you "pause" the infusion of heparin prior to taking your lab sample. Also, prior to drawing back blood from the PICC line infuse 10cc of Normal Saline and then draw off a waste of 10cc of blood. It is also suggested that you draw off another 10cc of waste blood prior to drawing the Hep APPT. Then draw your sample for the Hep APPT. There should not be any problems with the sample. Remember to do a final flush of the PICC line with 2 X 10cc of Normal Saline. Guy L Yes, provided that you "pause" the infusion of heparin prior to taking your lab sample. Also, prior to drawing back blood from the PICC line infuse 10cc of Normal Saline and then draw off a waste of 10cc of blood. It is also suggested that you draw off another 10cc of waste blood prior to drawing the Hep APPT. Then draw your sample for the Hep APPT. There should not be any problems with the sample. Remember to do a final flush of the PICC line with 2 X 10cc of Normal Saline. Guy L

A free-floating blood clot?

Blood clots can move, if they are inside a blood vessel. Moving blood clots are dangerous since they might cause a blockage of the blood flow at some critical location, causing a heart attack or stroke.

How long does it take a heart to pump a quart of blood?

Your heart pumps nearly five quarts of blood through your body every 60 seconds. By this calculation, it takes about 12 seconds for the heart to pump one quart of blood! :D

What would cause a person to lose two pints of blood without injury?

you will probably faint or die if you have any other sicknesses

What does low AFP indicate?

Abnormally high AFP may indicate that the fetus has an increased risk of a neural tube defect, the most common and severe type of disorder associated with increased AFP.

What is a blood cord and what does it look like?

Core blood is the blood collected from a newborns umibical cord. It can be harvested and stored for later use. Because this blood is new, it is suppose to be able to help restore vital functions in the brain and spinal cord. The use of core blood is still very contervesal and many people argue against its use.