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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 tissue allows the rapid diffusion of oxygen form the aveoli in lungs to blood?

In the lungs, cells called alveoli form a thin membrane between the lungs and the capillaries. The alveoli extract oxygen from the air inhaled by the diaphragm, and transfers the oxygen to hemoglobin in red blood cells, which transport the oxygen to other parts of the body.

What does hematocrit provide information on?

Hematocrit is one measurement among those that comprise the complete blood count (CBC) test, which measures many blood components. Hematocrit is the percent of total blood volume that is taken up by red blood cells. Normal hematocrit values are 46% RBCs in males and 38% in females.

Normal value of Erythrocyte sedimentation rate?

male -up to 15, female -up to20

The normal sedimentation rate (Westergren method) for males is 0-15 millimeters per hour, and for females is 0-20 millimeters per hour. The sedimentation rate can be slightly more elevated in the elderly and is much lower for children.

What kinds of blood types can be accepted by someone with B blood?

No he can't.

The acceptor has B negative, so he has antibodies against Rhesus D in his blood.

The donor has Rhesus D, because he is positive, so the antbodies in the plasma of the acceptor will attack the D antigens on the red blood cells of the donor, which has a lot of nasty effects.

What is the main structural difference between monocytes and lymphocytes?

Monocytes are granulocytes, meaning they have small granules in them. Lymphocytes do not. Histologically, you should be able to see some peripheral cytoplasm on a lymphocyte but not on a monocyte.

What factors could influence blood clotting?

Clotting factors, such as genetics and certain diseases may change the time a person bleeds from a cut or wound.

What does Low granulocytes?

Gran is short for granulocyte. The White Blood Count (WBC) in a blood test result is broken down into Granulocytes (GRAN) and Lymphocytes (LYM). White blood cells are part of the immune system. An elevated level of granulocytes is indicative of a bacterial infection.

Granulocytes are less specific in the type of cells they attack so they can cover a broader range of infection. They are involved in the breakdown of tumor cells while promoting the repair of damaged tissue. They are also involved in the release of histamine which causes the release of prostoglandins which is responsible for the inflammatory process which occurs in the presence of infection by bringing more blood to the area as well as preventing microbes from leaving the area before they can be destroyed & thus are responsible for the prevention of infection by way of a physical barrier.

A low level of granulocytes should be followed-up with additional testing to determine the reason. The immune system is highly dependent on many different things working together. The white blood cells are made by bone marrow & a low level in and of itself doesn't point to anything specific however, it is very important to have a follow-up visit to your doctor along with additional blood work in order to determine the cause. As with many of the maladies to which the human body is subject the vast majority have a better prognosis when detected early.

God Bless,

Maegi

Why doesn't blood clot in the bottles in Blood banks?

Tubes used for blood bank (Pink and Lavender top) contain a chemical called EDTA that binds the calcium in blood, which is needed for blood to clot.

Red or Gold top tubes contain no chemicals to prevent the blood to clot, so the blood will clot with out being exposed to air.

Each specific department in the lab have different colored tubes with different chemical/no chemical in them depending on what test has been ordered.

What is the scheme of blood circulation in the human body?

the whole scheme of blood circulation is given below in a diagram which is easy to understand.

How many red blood cells are in a teaspoon of blood?

A normal red blood cell count is about 5,000,000 per uL.

There are 1,000 uL per ml and 5 ml per tsp so:

5x10^6 x 10^3 x5 = 25x10^9 or 25,000,000,000 or 25 trillion.

What does EO mean on lab testing results?

EOS in blood testing has nothing to do with photography. An Eosinophil is one of six major kinds of white blood cells. According to the Merck Manual of Medical Information, "Eosinophils kill parasites, destroy cancer cells, and are involved in allergic responses."

Is platelet count 415 high or low?

A normal platelet count is between 150,000 - 400,000 platelets per microliter (mcL). Some labs represent this number as 150-400. Depending upon how they represent their findings your platelet count may be either high (500,000), or may be very low (500 as shown). Most labs will show an H or L next to any abnormal values shown on a report that is either High or Low. The best thing to do is consult with your doctor.

Can allergies cause white blood cell count to be higher than normal?

No, because if you are allergic the eosinophil is up while if you have a high white cell count means that you have an infection.

What condition is a deficiency of blood passing through an organ?

Hypoperfusion is inadequate blood flow through an organ.

Whose blood type does a child have?

A child is born with his/her own blood.

What makes semen to be red?

Semen will usually have a chlorine type smell but a strong foul smelling ejaculation could be a sign of infection yellow or green tinged semen could also indicate infections and red or brown semen can highlight prostate problems.

What if your lymphocyte count is low?

If your white blood cell count was low on your blood screening, there are a full range of possibilities. Are you sick? Then that is why. If you are fighting illness, and not being successful (getting sicker) then your white cell count would be low. If you have a low white blood cell count even when you get a cold or the flu or some other less severe sickness, and you start to get better, then it is possible that you have HIV. HIV results in the lowering of white blood cells. There are also certain medications that lower the white blood cell count. If you want more help, message me!

What type of blood has low oxygen and high carbon dioxide?

Deoxygenated blood is low in oxygen and high in carbon dioxide.

What makes up the nonliquid part of the blood?

Plasma makes up blood (it is yellow wierd...)

Why does blood taste like metal?

  • Its because of the iron in your hemoglobin, the chemical that makes red blood cells absorb oxygen and take it to your cells. Actually, if you bleed enough, blood smells like copper, too. There is also a protein in your blood plasma (The liquid that makes blood flow through your viens/arteries) that transports opper to your bone marrow, it is called ceurloplasm. The copper delivered here creates new red blood cells.

Here's a side-note on how much iron is in your body. It may not sound like much, but it is.... There's enough iron in your body to make a 3-inch nail, weighing approximately 3 to 4 grams.

What do the five points of the blood gang mean?

For all the homies that died, their blood spilled. Every since the started of the 70's, Bloodz are apart from and probably better than THE Crips. They still bang with the Black Gangsters Disciplines.(GD's).