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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

Is a human blood cell made up of smaller cells?

Yes, blood is composed of formed elements and the liquid matrix called plasma. The formed elements of blood are red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).

How do White blood cells get rid of Harmful microbes?

White blood cells use phagocytosis to remove foreign particles from the blood stream. These cells will literally engulf foreign particles that are the same size as itself. There are two types of white blood cells which act as phagocytes: macrophages and polymorphic leucocytes. To be phagocytosed, particles need to bind to the receptors on the phagocyte. Then the particle is engulfed and absorbed.

Why do the red blood cells carry less oxygen in a smoker?

Red blood cells contain a protein known as haemoglobin (Hb) which is responsible for carrying about 98% of the body's oxygen (the rest is dissolved in the blood). However oxygen is not the only thing that binds to Hb. Both carbon dioxide (CO2) and carbon monoxide (CO) can also bind to it as well (both of which are chemicals produced in cigarette smoke). The binding of CO2 to Hb is normal, and is how the majority of CO2 in the body is trasported to the lungs for exhalation (as it is a bi-product of energy production in the body). However, both CO2 and CO have higher affinities for Hb (i.e. they are more likely to bind to Hb) in the blood, and so when there is more CO and CO2 around, such as when smokers inhale cigarette smoke, the Hb is more likely to bind CO and CO2 than oxygen.

CO2 is far more common than CO, and Hb's affinity for it is lower as well. Hb has an incredibly high affinity for CO which explains why it is so toxic to humans as the Hb it binds to is more or less left unusable in the body.

This is my understanding of this all at a 2nd year university level of physiology, but I believe it more or less explains everything.

What is the most important job of the red blood cells?

The most important job of red blood cells is to transport oxygen from the lungs to the rest of the body and remove carbon dioxide, a waste product, from the body. This is essential for delivering oxygen to all cells and tissues to support vital physiological functions.

Do nerve cells and blood cells the same shape?

No - they have very different shapes in order to perform their specific functions. Nerve cells are long with branched 'dendrites' at the end. There are many different blood cells, one of which - red blood cells - are almost circular with an indent in the middle.

Why brain cells swell when the blood plasma is very dilute?

Osmosis is the movement of water from a High Water (Dilute Solution) to a Low Water (Strong Solution).

If blood plasma becomes very dilute with water, when it travels to the brain the brain cells will swell because the are taking on too much water. This happens because the high concentration of water (in the blood) is moving to the lower concentration of water (brain cells) making the cells swell as they are taking on too much water.

What will happen if distilled water is hypotonic to a red blood cell?

If distilled water is hypotonic to a red blood cell, water will move into the cell through osmosis, causing the cell to swell and potentially burst (lyse) due to the increased pressure inside the cell. Red blood cells do not have a cell wall to protect them from changes in osmotic pressure, so they are particularly susceptible to lysis in hypotonic solutions.

What other cells travel to the injury site with white blood cells?

different types travel other than white blood cells. they have cells that stop bleeding,form the scab,even some blood cells act as nerves to tell you that you are hurting, and travel to the spot and make the scratch, injury, or what ever ache.

What do you think the white blood cells do?

White blood cells are a vital part of the immune system, working to defend the body against infections and diseases. They identify and attack pathogens such as bacteria, viruses, and other foreign substances, helping to reduce the spread of infections throughout the body. Additionally, white blood cells also play a role in the inflammatory response and wound healing processes.

What cellular organelle is especially abundant in phagocyte white blood cells?

Phagocyte white blood cells have an abundance of lysosomes. Lysosomes contain enzymes that help with digestion of foreign materials, such as bacteria, that are engulfed by the phagocyte during the process of phagocytosis.

Which major class of lymphocytes become cytotoxic T cells?

CD8+ T lymphocytes, also known as cytotoxic T cells, become cytotoxic when they are activated by presenting antigens on major histocompatibility complex class I molecules. These cells play a key role in the immune response by directly killing infected or abnormal cells.

Is asprin blood thinner?

Yes, aspirin is a mild blood thinner because it can prevent blood clot formation by inhibiting platelets from sticking together. It is commonly used in low doses to reduce the risk of heart attacks and strokes.

What is the function of haemogoblin in the blood?

Hemoglobin is a protein in red blood cells that carries oxygen from the lungs to the rest of the body and helps transport carbon dioxide from the body to the lungs to be exhaled. It is essential for the body's ability to function properly and maintain cellular respiration.

How many red blood cells could fit across the diameter of a human hair?

none because........ sorry a hair can have 10000 cells. its amazing how little as a piece of hair have 10000 cells

What is Reverse blood typing?

reverse blood typing is one of the experiment at blood banking subject. the point in here is when you are type A the agglutination was formed at B cell suspension because of the anti body is not the same the anti body of B cell will not compatible at anti body of type a ...

What infectious disease attacks the body's white blood cells?

HIV (Human Immunodeficiency Virus) attacks and impairs the function of white blood cells, specifically CD4 T lymphocytes, weakening the immune system and making the body more susceptible to infections.

Which T cell inhibits the activity of other T cells?

Regulatory T cells (Treg) suppress the action of other T cells. This inhibits immune responses to self-antigens, aiming to prevent the immune system from attacking normal self cells.

What hormone plays an important role in incubating a speical group of white blood cells?

The hormone is called erythropoietin (EPO), and it plays a vital role in the production of red blood cells in the bone marrow. This hormone is produced mainly by the kidneys in response to low oxygen levels in the blood.

Can a mother with a plus blood and a father with b plus blood make a baby with o plus blood?

It could be possible, but only if both the parents are heterozygous.

If the mother is AO and the father is BO - there is a 25% chance the child will be OO (O blood group).

However, if either or both of the parents are homozygous (AA or BB) - then they cannot have an O child.

What is the protein found in red blood cells that give blood its color?

iron. the blood contains iron and when you breathe, you give oxygen to it. so your blood is red pretty much because of oxidized iron. the red blood cells take the oxygen through the body and when it is deposited the blood turns blue, that's why the veins in your wrist are blue.

What does red blood cells that are compact mean?

Compact red blood cells typically refers to red blood cells that are densely packed together, potentially indicating dehydration, a condition known as hemoconcentration. This can be seen in conditions such as dehydration or polycythemia. Further investigation would be needed to determine the underlying cause.

What part of the body do the red blood cells form in?

Red Blood Cells are manufactured in the bone marrow.

Where are the red blood cells found in humans?

Red blood cells are found in the blood, primarily within the blood vessels and capillaries throughout the circulatory system. They are responsible for carrying oxygen from the lungs to all the tissues in the body and transporting carbon dioxide back to the lungs to be exhaled.

Which WHite Blood Cell kills parasitic worms?

Eosinophils are white blood cells that are specialized in fighting parasitic worms by releasing toxic granules that kill the parasites.

What do red blood cell lack?

Unlike the other cells in your body red blood cells do not have DNA or a nucleus. They do contain hemoglobin, a protein which allows your red blood cells to carry oxygen and other gases.