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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 function of a phagocyte is?
Phagocytes are very important components of our body's immunity (innate immunity). They are cells that can phagocytose foreign microbes (engulfing microbes by the cell membrane) and then they use enzymes to break down these foreign microbes. Phagocytes may also present the remnants of the microbe to a different type of cells (lymphocytes) to create a memory of that microbe in the body.
Is it possible to have a human blood pH of 7.7?
Actually, that's not entirely true. Sure, our pH levels are maintained. Our levels are suppose to be 7.35 to 7.45. But, it is possible to have a different level, and some people do. However, a different level of pH may result in sterility, meaning that the person in question is unable to reproduce.
What moves the blood to all body tissues except the lungs and heart?
Veins and arteries distribute blood throughout the body. The blood circulates through the heart and back to the body continuously.
What are the effect of different concentration of salt solution on red blood cells?
In water - they will swell and explode
In salt water - they will shrink
In isotonic solution - they will be fine
This is because of osmosis, water will travel wherever there is a higher concentration of minerals, hence the cells swelling in water.
I was told yawning can mean you need more oxygen in your blood?
how does yawing provice the body mopre oxygen
What are erythrocytes and what do they contain?
Erythrocytes (Red Blood Cells)
- specialized for oxygen transport
- mature erythrocytes have no nucleus instead these disk - shaped cells are packed with the respiratory pigment Hemoglobin
*Hemoglobin is an iron containing molecule that binds with oxygen
In the blood or the bone marrow.
Leukemia usually starts in the white blood cells. Your white blood cells are potent infection fighters and they normally grow and divide in an orderly way, as your body needs them. But in people with leukemia, the bone marrow produces a large number of abnormal white blood cells, which don't function properly.
Why does blood turn red to black?
De-oxygenated Blood Turns Dark Red, Not Blue DAVEN HISKEY SEPTEMBER 3, 2010 0
Myth: De-oxygenated blood turns blue.
The common misconception that blood that lacks oxygen turns blue probably comes from the fact that veins appear blue and blood in the veins is typically heading back to the lungs, hence depleted of oxygen. It is also possibly from the fact that when people are suffocating or the like, their lips and complexion seem to turn blue-ish or purple.
People who perpetuate this myth often claim that the reason we never see blood in its blue form is that the instant we get cut, the blood is exposed to oxygen and thus, instantly turns red. Of course, when you get blood drawn from your veins that isn't exposed to air, we see that it is dark red, but let's not let such observations get in the way of a good myth.
In reality of course, it turns out that when blood is deprived of oxygen, it actually just turns dark red, as we often see when it is drawn when we are donating blood. When it's oxygenated, it turns a brighter red. This red color primarily comes from the hemoglobin, which contains four heme groups. These heme group's interactions with various molecules end up giving it the dark red or light red color we see. The hemoglobin itself is a protein that binds with oxygen to eventually be distributed throughout the body in blood.
Graphite is made of carbon and only carbon.
Blood is composed of water, proteins, ions, and cells. Since there is more than one type of atom, it is not an element. Since there is more than one type of particle, it is not a compound. This makes it a mixture. Since the composition of the mixture doesn't differ significantly between different samples from the same organism on the same day at the same time, it can be called a homogeneous mixture.
Does the venous blood enter the right atrium?
The venous or deoxygenated blood flows into the right atrium. Then is goes to the right ventricle. From there it is pumped out to the lungs to get oxygenated and back into the left atrium then to the left ventricle and from there to the rest of the body.
A white blood cell is a cell which protects our body from diseases and helps us to maintain our immunity
They lives shorter than red blood cells(erythrocytes) with a life span average of 14 to 20 days
What is the difference between pathogen and phagocyte?
Phagocytes eat anything that seems foreign or harmful to the body (bacteria, virus, infected cells) in a process called phagocytosis.
Macrophages are actually a type of phagocyte. They consume large amounts (or clumps) of foreign invaders. They are pretty slow in performing phagocytosis.
What is low blood volume called?
Low blood volume will cause low blood pressure, high heart rate as the heart tries to compensate. Eventually if the volume is low enough the person will go into hypovolemic shock.
Which component of blood helps fight disease?
Langerhan's Cells (also called epidermal dendritic cells) -
They are phagocytes that ingest foreign substances and help to activate our immune system.
The discharge of blood from the ureter?
Blood in the urine is usually a sign of some problem with the urinary tract. In certain people and families, it may be normal. It is always a sign that deserves discussion with your health care provider.
How can low neutrophils be treated?
Your pediatrician would best be able to tell you treatments for neutropenia in children but in many cases, the white blood cells will regenerate themselves with time if the neutrophil count has gone down because of an illness such as the flu. If treatment is necessary, how severe the neutropenia is will determine the course of action in regards to treatment. The doctor may prescribe injections of a neutrophil growth factor or if the neutropenia is severe enough, your child may have to have injections of granulocyte colony stimulating factors (G-CSF's). This is generally only prescribed for severe chronic neutropenia. If the neutropenia is caused by illness such as leukemia, a bone marrow transplant is often the best treatment.
By ana, I am assuming you are referring it anorexia. In which case, you can't BE ana. It is a life style choice. But it means to starve yourself to achieve thinness. And to be thin is to be beautiful. I would recommend checking my blog, dyintobethin.blogspot.com
Lymphocytes are a type of white blood cell that is found in the blood of vertebrates. There are a few different types of lymphocytes, but the main three are known as T cells, B cells, and NK cells.
Does red blood cells leaves the blood?
Yes, it can, when you pop a blood vessel. You can do this by pushing too hard on a vein or artery. Also, when you get a cut it is coming out of a vein or artery.
You have an eosinophil count of 14 is this level harmful?
Yes, high eosinophil levels indicate something wrong is happening in your body that needs to be identified and treated. Eosinophils are part of your immune system, but when there are too many of them for too long, they begin to seriously damage the body as well. Elevated eosinophils may be from something as common as an allergic reaction, medication reaction or internal parasites, but it could be very serious - even a symptom of a type of cancer. Anyone with elevated eosinophils needs to see their physician for further testing and treatment.
- Arteries: Carry the blood AWAY from the heart.
- Capillaries: Allow for the Exchange of Chemicals & Water, like Oxygen in the lungs with Blood, and also between the Blood and Body's Tissues.
- Veins: Carry blood TOWARD the heart.
Blood Vessels (Arteries and Veins) can change their diameter by muscular Contraction & Dilation, thereby changing the pressure which in turn changes the blood flow to organs which are 'downstream.' The Dilation and Constriction of Blood Vessels is regulated/determined by the Autonomic Nervous System (an example of this is when you Stand - the Blood Vessels in your legs Constrict, increasing the pressure in those Blood Vessels, to keep the average blood flow/pressure consistent). Another Function of Blood Vessels' ability to Constrict and Dilate is also a means for the body to regulate its temperature.
What do blood sugar readings at 20 mean?
That is a reading that is so low you would likely be unconscious and need emergency hospital treatment. If alert and able to swallow without choking, use a glucose tablet or sugar candy immediately and call 911 if you are diabetic and on oral hypoglycemic medications or insulin.
If you have no symptoms of sweating, shaking, agitation, dizziness or fainting which are common symptoms of hypoglycemia (low blood sugar) and if you are self-testing, it could only mean that your testing meter needs a battery or your strips are expired. Check those things and recheck your blood sugar, if still low seek urgent medical advice.
Why is white blood cells different from red blood cells?
They're not really alive, all they are is a bag of hemoglobin.
The RBC's have no nucleolus and are not metabolically active.
The don't have a nucleus.
There are actually many animals such as vertebrates that have red blood cells. Some simpler animals have an open circulatory system.
