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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

Do all leukocytes have cytoplasmic granules?

I don't know. Why don't u ask your biology teacher?

What blood is rare?

Having a rare blood group (such as AB negative) would make someone a rare blood donor.

How do platelets form a scab?

Scar tissue is formed under the scab.

Is 5.67 red blood count high or low?

RBC 5.67 is little bit high. The normal value of RBC is between 3-5.

What role does blood play in carrying food particles around the human body?

The role of blood is to carry nutrients and oxygen to our organs and our brains

For a short answer, blood is sort of like a fuel, like gas to a car. If blood is not pumping through your system than you will die just like if gas is not pumping through a car's engine, it will break down.

What color does oxygen make the blood turn?

Hemoglobin, when united with oxygen, turns bright red.

What is an abnormal increase in WBC?

An abnormal increase in the number of WBCs can signal the sign of different conditions or issues in the body. These include infection, stress, inflammation or immune response to viruses or bacteria. It can also indicate the presence of leukemia.

What are the benefits of red blood cells passing through capillaries one at a time?

The narrow diameter of capillaries maximizes opportunities for diffusion of oxygen, wastes, and nutrients into and out of the blood from the body tissues. The slow speed of flow also facilitates diffusion.

What makes up more than half of your blood?

Blood is a mixture of cells and a watery liquid, called plasma, that the cells float in. It also contains other things like nutrients (such as sugar), hormones, clotting agents, and waste products to be flushed out of the body.

Does blood have protein?

yes there is protein in the blood in the form of albumin serum. albumin serum is protein which can symbolise general health of a person. Low albumin levels indicate infections, malignancies, tumours. high albumin serum indicate dehydration

How long does it take to take blood?

It depends on the method and why.

Donating

If it is your first time, you will need to go through a registration process first. That includes filling in forms with your name and medical history, as well as having a sample of your blood taken for lab analysis to make sure it's healthy to be donated. Then you are given the go-ahead to donate. This could take around 2 hours to 3 days to complete.

If you have already registered, it should take around 10 minutes to donate blood.

Blood testing

Around 10-30 minutes depending on method of extracting the blood.

How does hematocrit compare with the normal value?

Normal values vary with age and sex. Adult male range is 42-52%, adult female 36-48%.

Why does blood separate into three parts?

Gravity allows blood to be separated. Blood is a mixture of Cells and Plasma. Each type of cell and the plasma "weigh" differently. Thus, the heavier more solid blood will sink to the bottom of the tube (RBCs), the lightest liquid part comes to the top (Plasma), and in the middle of the two is where the middleweight Leukocytes settle in.

CELLS: 3 types - Erythrocytes (also called Red Blood Cells or RBCs), Leukocytes (also called White Blood Cells or WBCs), and Platelets. Plasma is 90% water and the liquid part of blood.

What are two kinds of lymphocytes?

Lymphocyte is a type of white blood cell found in the vertebral immune system.

Lymphocytes can be divided into Large lymphocytes and small lymphocytes when viewed under the microscope. The Large lymphocytes include natural killer cells (NK cells)

There are mainly two types of Lymphocytes.

T Lymphocytes and B Lymphocytes. (these are small lymphocytes according to the microscopic view)

B Lymphocytes have 3 subsets. You can see the attached link for further information.

What cell type is most numerous?

Red blood cells. There is about 50% of red blood cells in our body.

What are the Structural features of the Red Blood cells?

Each hemoglobin molecule is made up of 4 poly-peptide chains. There are 2 alpha chains and 2 beta chains and each chain contains 1 iron-heme group which binds to an O2 molecule

Why arterial blood is more alkaline than venous blood?

pulmonary arterial blood as it has moce CO2 than venous

Are there white blood cells in blood transfusions?

Yes. This actually happens quite often in hospitals.

What does pct on blood test mean?

The quantitation of platelets in peripheral blood is a well-recognized tool. Recently, new indices related to erythrocytes and platelet counts have been provided by hematologic analyzers. Concerning the platelet parameter, the three important parameters are plateletcrit (PCT), mean platelet volume (MPV), platelet distribution width (PDW). The purpose of the study is to investigate these three parameters to define their expected values and the correlation with the parallel red blood cell parameters, hematocrit (HCT), mean corpuscular volumer (MCV), and red blood cell distribution width (RDW). Blood samples form 215 volunteers were analyzed for platelet parameters using Technicon H*3. The average (mean ± SD) values obtained with expected ranges were PCT 0.24 ± 0.05% (range, 0.23-0.24%), MPV 12.79 ± 5.91 fL (range, 12.39-13.19 fL), and PDW 46.79 ± 2.70% (range, 46.61-46.97%). Concerning the correlation between PCT, MPV, and RDW and their parallel red blood cell parameters, there was no significant correlation between PCT and HCT, and between MPV and MCV. However, there was a significant correlation between PDW and RDW. It seems that the anisocytosis of red blood cells and platelets might co-occur. However, these data are basic observations; further in-depth evaluation of the platelet parameters is recommended.

Where do red blood cells drop off oxygen?

Red blood cells release their oxygen in the capillaries. The oxygen diffuses across the capillary wall to reach the body tissues.

How much blood does a cow have?

Blood volume is dependent upon size - a mouse has less than a quarter cup of blood total while an elephant has over 20 gallons.

What is normal count for haemogram?

A normal haemogram, or complete blood count (CBC), typically includes the following reference ranges: red blood cells (RBCs) are usually between 4.5 to 6 million cells per microliter for men and 4 to 5.5 million for women; hemoglobin levels range from 13.5 to 17.5 grams per deciliter for men and 12 to 15.5 grams for women; and white blood cells (WBCs) generally range from 4,000 to 11,000 cells per microliter. Platelet counts are considered normal between 150,000 and 450,000 platelets per microliter. However, these values can vary slightly based on the laboratory and individual factors.

How many times more blood does an adult have than a baby?

Yes, this is true. Because the size of an infant there is going to be less blood. An adult will have more because of the size difference.

What happens if you lose 2 pints of blood?

One would be dead or close to it. The person would be in severe shock and could be dying. This is an emergency situation. Losing two pints of blood is dangerous, much less 2 Liters. Call 911 if this is an emergency or see your healthcare professional for additional information pertaining to this question. This response has been given by a medical professional, but not a physician. Although this response has been checked for accuracy and has been researched, any advice given here does not take the place of your primary care provider. In an emergency, please dial 911 or your local emergency number. This response is provided under the terms and disclaimers of WikiAnswers and the author of this answer cannot be held liable for any misguided attempts to follow this advice without the observation or guidance of a licensed physician.