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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
The red blood cell count would be 2.4 million per cubic milliliter (240 x 10,000).
Why do people who can't produce white blood cells get infections?
Blood is essential for good health because the body depends on a steady supply of fuel and oxygen to reach its billions of cells. Even the heart couldn't survive without blood flowing through the vessels that bring nourishment to its muscular walls. Blood also carries carbon dioxide and other waste materials to the lungs, kidneys, and digestive system; from there they are removed from the body.
Without blood, we couldn't keep warm or cool off, we couldn't fight infections, and we couldn't get rid of our own waste products.
So how exactly does blood do these things? How is it made, and what's in it? How does blood clot? It's time to learn a little about the mysterious, life-sustaining fluid called blood.
What Is Blood and What Does It Do?Two types of blood vessels carry blood throughout our bodies: The arteries carry oxygenated blood (blood that has received oxygen from the lungs) from the heart to the rest of the body. The blood then travels through the veins back to the heart and lungs, where it receives more oxygen. As the heart beats, you can feel blood traveling through the body at your pulse points - like the neck and the wrist - where large, blood-filled arteries run close to the surface of the skin.The blood that flows through this network of veins and arteries is called whole blood. Whole blood contains three types of blood cells:
- red blood cells
- white blood cells
- platelets
In babies and young children, blood cells are made in the bone marrow of many bones throughout the body. But as kids get older, blood cells are made mostly in the bone marrow of the vertebrae (the bones that make up the spine), ribs, pelvis, skull, sternum (the breastbone), and parts of the humerus (the upper arm bone) and femur (the thigh bone).
Blood cells travel through the circulatory system suspended in a yellowish fluid called plasma. Plasma is 90% water and contains nutrients, proteins, hormones, and waste products. Whole blood is a mixture of blood cells and plasma.
The parents have the following genotypes:
- Type B = genotype BB or BO
- Type O = genotype OO
- Type A = genotype AA or BO
- BB/BO x OO = Baby Type BO or OO
- AA/AO x BB/BO = Baby Type AB, AO, OO
No, the circulatory system does not produce red and white blood cells. Red blood cells are produced in the bone marrow, while white blood cells are produced in various tissues in the body such as the bone marrow and lymph nodes. The circulatory system is responsible for transporting these cells around the body.
What blood cells kills bacteria?
You Must mean White blood cells.
White blood cells kill bacteria by first engulfing them, this process i believe is called
phagocytocis. They literally eat the bacteria and digest it.
What are the possible blood types of a child who's parents are both heterozygous for B blood type?
The possible blood types of the child would be B and O. Each parent can pass on a B allele or an O allele, resulting in a 50% chance of the child inheriting a B allele from each parent, making them blood type B. If the child inherits an O allele from one parent and a B allele from the other, they would be blood type B.
Do fish have nuclei in their red blood cells?
No, fish typically do not have nuclei in their red blood cells. Most mature fish red blood cells are enucleated, meaning they do not contain a nucleus. This allows for more efficient oxygen transport in their bloodstream.
What are the implications if red blood cells count are more than normal?
An elevated red blood cell count, known as polycythemia, can lead to thickening of the blood, which increases the risk of blood clots and can strain the heart by making it work harder. It can be caused by various factors such as chronic hypoxia, kidney disease, or bone marrow disorders, and should be evaluated by a healthcare professional for appropriate management.
Macrophages are large phagocyte white cells that are found throughout the body, both as fixed cells in tissues like the liver, spleen, and lungs, as well as free-roaming phagocytic cells in the bloodstream. They play a crucial role in the immune response by engulfing and digesting harmful pathogens, damaged cells, and debris.
How does your white blood cells protect you from tetanus bacteria?
White blood cells attack and destroy tetanus bacteria by recognizing them as foreign invaders. They engulf the bacteria and release chemicals to kill them. Additionally, white blood cells can produce antibodies that specifically target tetanus toxins, neutralizing their harmful effects.
gene control and from the patterns of cellular control for gene product behavior, and play very important role in maintenance number of chromosome in the offsprings against the evaluation changes.
What is the differecne between reticulocyte and erythrocyte?
Reticulocytes are immature red blood cells that still contain some organelles, while erythrocytes are mature red blood cells that have lost their organelles and are responsible for oxygen transport. Reticulocytes are typically found in the bloodstream for a short period before maturing into erythrocytes.
What makes red blood cells bind oxygen to their structure?
Red blood cells contain hemoglobin, a protein that binds to oxygen. Hemoglobin has iron ions that attract oxygen molecules and form a reversible bond with them. This allows red blood cells to transport oxygen from the lungs to tissues throughout the body.
Is blood blue if you did not have red blood cells?
Everyone has red blood cells. You could not live otherwise.
When someone says 'blue blood' they are speaking metaphorically or comparatively.
There is a common misunderstanding about the color of blood that unfortunately actually sometimes is passed along by elementary school biology teachers who are not up to date. Your blood is never blue, always shades of red.
When arterial blood leaves the lungs to circulate through the body, it has just a little bit more oxygen in it than does venous blood. The reason it appears bright red is that the combination of iron, oxygen, and hemoglobin absorbs higher energy wavelength light (blue and green) which leaves the red wavelengths available for our eyes to sense.
The venous blood is never blue, it is a darker color of red than arterial blood, not blue. The color is a burgundy red or maroon color. Blood is bright red in the arteries and dark red in the veins. The reason venous blood is a darker red can be partially attributed to the slightly less oxygen in the blood in the veins. But its color change is more due to the "waste" it carries away from the body tissues and back to the kidneys for filtering and elimination. This "waste" darkens the red color of the blood (think of it as a little like dirty dish water).
Although a popular belief, being in contact with air does not cause venous blood to instantly oxygenate and turn red. It is red outside the body because it is red inside the body as well. When you look at unopened veins inside the body, in endoscopy, for example, they are a dark red color.
The blue appearance of the veins that you see when looking at them through the skin is not caused by blue venous blood. As explained, that is always red. The blue appearance is caused by a reflective factor of the skin itself. It is an optical property of the reflection of light off light colored skin and the difference in that reflection from the veins under the skin (but near the surface). That reflective process is complex, but the blue-looking veins are mostly all about the skin and reflection.
If arteries were not too deep to be visible through the skin, then they, too, would have a blueish appearance, the same as the veins for the same reasons.
The blue color of cyanotic lips and skin is not because the blood is blue.
What does white blood cells do to dead cells?
White blood cells help to clear away dead cells by engulfing and breaking them down through a process called phagocytosis. This helps to remove dead cells and prevent the buildup of cellular debris, which can be harmful if left unchecked.
Are granulocytes called neutrophils phagocytic and the most numerous of all white blood cells?
Yes, granulocytes include neutrophils, which are known for their phagocytic activity. Neutrophils are the most abundant type of white blood cell in the body and play a crucial role in the immune response against bacterial infections.
What happens if red blood cells were placed into breaker with plasma?
If red blood cells were placed into a beaker with plasma, the red blood cells would absorb the liquid and start to expand due to the osmotic pressure. Eventually, the red blood cells may burst (hemolysis) if the osmotic pressure is too high compared to their structural integrity. This would release hemoglobin into the plasma.
What does it mean when you don't have any white blood cells?
Having no white blood cells is a condition called leukopenia, which can be caused by factors such as infections, medications, autoimmune disorders, or certain medical treatments like chemotherapy. It weakens the body's immune system, making individuals more susceptible to infections. Treatment depends on the underlying cause and may involve addressing the root issue or boosting white blood cell production.
How many red blood cells does bone manufacture every day?
The human body will compensate for the amount of red blood cells that die every day by producing around the same amount that was lost. Typically, 1% of the total amount of red blood cells die everyday. Therefore, 1% of the body's total red blood cell count will be produced every day.
What is the selective advantage of a mature red blood cell being flat rather than a sphere?
The selective advantage of a mature red blood cell being flat rather than a sphere is that is it easier for the cells to fit through veins and arteries. Red blood cells are also known as erythrocytes.
When red blood cells retire they filter through the liver and out in your stool?
Red blood cells are broken down in the liver and spleen, releasing iron and other components for recycling. Any waste products are excreted in the stool as bilirubin, giving stool its characteristic brown color after processing by gut microbes.
What test is used to identify the makeup of the surface of the red blood cell?
A blood smear test is commonly used to identify the makeup of the surface of a red blood cell, including its morphology, size, shape, and presence of abnormalities like irregularities or parasites. This test involves preparing a thin blood sample on a glass slide for microscopic examination by a medical professional.
If the parents are blood Type O and Type B what might their children's blood types be?
We are looking for the possible blood types of a baby.
Parental information:
- Mother type O -- can only be OO = contributes O gene
- Father type B -- can be BB or BO = contributes B or O gene
- Baby is type BO
- Baby is type OO
HOWEVER: There is more to ABO blood typing that just the ABO gene.
There is also an inhibitory gene that will change any genotype into the phenotype O.
Therefore a person with genetically AB blood can be tested as having Type O.
If the Type O parent has the inhibitory gene affecting his Type A, B or AB blood, then the baby may be Type A or AB.
Can parents having same blood group 0 positive give birth to a child with blood group 0 negative?
Yes, parents with blood group O positive can have a child with blood group O negative. This is possible if one parent is heterozygous for the Rh factor (one parent has both positive and negative Rh alleles), allowing for the possibility of the child inheriting the negative Rh factor.
