Dr Karl said that tears are blood without the red blood cells. Is this true?
543591
in a way, i think this doc is right...blood without red blood cells, which is the majority of the formed elements in the blood contents, is plasma. what makes up blood plasma is water, electrolytes (salt), plasma protein. what makes up tears is water, salt, enzyme (a form of protein). so i think Dr. Karl makes sense in this way....but, besides RBCs, there are WBCs, and platelets in blood...so he had said...tears are blood without formed elements, he could have been more precise...
635103
Tears are a liquid produced by the body's process of lacrimation to clean and lubricate the eyes. The word lacrimation may also be used in a medical or literary sense to refer to crying.\n\nThere are three basic types of tears:\n\nBasal tears: In healthy mammalian eyes, the cornea is continually kept wet and nourished by basal tears. They lubricate the eye and help to keep it clear of dust. Tear fluid contains water, mucin, lipids, lysozyme, lactoferrin, lipocalin, immunoglobulins, glucose, urea, sodium, and potassium. Some of the substances in lacrimal fluid fight against bacterial infection as a part of the immune system. \n\nReflex tears: The second type of tears results from irritation to the eye by foreign particles, or substances such as onion vapors or tear gas or pepper spray. These reflex tears attempt to wash out irritants that may have gotten into the eye. \n\nCrying or weeping: The third category, also referred to as crying or weeping, is increased lacrimation due to strong emotional stress or pain. This practice is not restricted to negative emotions; many people have been known to cry when extremely happy. In humans, emotional tears can be accompanied by reddening of the face and sobbing — cough-like, convulsive breathing, sometimes involving spasms of the whole upper body. Tears brought about by emotions have a different chemical make up than those for lubrication.
384651
You need to revise your question, it makes no sense.  You left out what was causing the internal bleeding.  Was trauma involved or a disease process?  Without further details, your question is too vague.\n\nInternal bleeding no matter what isn't a good thing, without surgery, death could occur.
660550
its neurogical response to ur inner state of mind. when u are happy or sad the nerves get activated as a result of which ur tear glands activates and hence the tears.
560982
no.\n\nyou need direct contact with blood, or bodily fluids. (and spit does not count unless you are drinkning it in buckets)
875946
tequnically, yes, because your tears are swept away in the water, and your tears are made of salt. but you really wouldn't feel it. It is still possible, though.
76733
Everyone cries. Men and women. Perhaps women share their tears a bit more openly.....but we all cry inside. Its ok to cry......its cleansing in a sense. Ok well....without the soap.....that stings. But it does somehow make you feel better after a good cry. You've let all your emotions come to the surface and find their way out into the open. And sometimes that's exactly what you have to do in order to move beyond the pain and on to the next level of healing. So let the tears come if they want to. Its ok. :)
45722
Because when your tissue is not receiving blood, is is also not receiving oxygen and nutrients and toxins are building up in there, doing damage. Your brain reads this new information (when you get feeling back) as pain.\n\nGood Luck!
185151
The most blood loss I ever saw not resulting in death was a man shot (by a machine gun) while investigating gun running to Cuba (a long time ago, don't look for recent incidents).\n\nDuring the first few hours he received 55 pints while the doctors labored to patch him up and stem the bleeding.\n\nThis man survived because he was not too old and he was in very good health, but was in a very long coma with a very long, expensive recovery period.\n\nOnce a person is in shock the survival clock begins ticking and the body takes action to preserve blood volume for essential organs.  Tissues less vital will start dying, also vital organs may not receive enough oxygen if the blood loss is severe enough.  If a vital artery like the carotid is severed, the brain can die, even though patients with other injuries and greater blood loss have survived.\n\nPrompt medical care is essential, the doctors take action to restore the blood volume fast.  Important preliminary to surgery to repair leaks.\n\nSometimes blood loss is so severe, even though internal, that death comes quickly before help is possible.  An example of this is a burst aortic aneurysm.\n\nBlood pocketing around the heart can cause 'cardiac tamponade' interfering with the operation of the heart because it cannot fill properly before contracting.\n\nThe point I am making is that it depends on lots of factors.  A little blood loss will cause death in the right conditions, and a big blood loss can be survivable in many instances.\n\nSo it is a thinking situation rather than some iron clad rule applying to the amount.\n\nIf a person is bleeding internally, many ordinary people do not consider that a blood loss, but it is considered so by medical people.\n\nIn the case of a brain aneurysm that bursts, a very small amount of blood lost to bleeding internally within the brain can still produce death.
766584
Tears partly come from a gland that is located above your eyeball and towards your ear in each eye.  It is called the lacrimal gland.  This gland creates the water part of your tears.  It is this gland that gets activated when something irritates your eye or when you are emotionally "revved up" enough to start crying.  It is simply a system of nerves connected to the gland that cause it to start forming tears.  \n\nThere is what is called a tear film that is constantly covering your eye.  The film is not just made of water - oil and mucus are also part of the tear film.  The mucus' job is to keep the water "stuck" to the front of your eye, and the oil's job is to keep the water from evaporating off of your eye.  When people's eyes start to water excessively, the eye is only creating an excess of the watery part of that tear layer, as explained above.  Hope this helps!
811750
Petecjia are small hemorrhage in the skin. In children, crying hard, screaming, vomiting can cause this. The other big cause is a low platelet count, but a blood count can rule this out. In the situation you describe, it is unlikely to be  a serious problem and when he grows out of the crying stage this will resolve.
122804
MOST blood is transfused as pRBC's (packed red blood cells). Red blood cells have no nucleus, and therefore carry no DNA. \n\nRarely whole blood is transfused which contains DNA carrying white blood cells, usually have too many cell surface proteins that are recognized as not self (or foreign) and are destroyed.
1074268
Actually, in people's hearts blood is pumped. There is no emotional feeling in the heart. For many Christians, that blood is very cold.
870430
Whole blood contains R.B.C the red blood corpuscles. Plasma is devoid of red cells.
335803
Mature human RBC have no nucleus.\n\nMuscle cells have several, as a result of cells fusing together.
176483
Ok  each cell has its own wall, think of it like a water balloon.  now take a whole bunch of these water balloons and stack them together,  say thats you skin holding all your blood in, ahh but your blood is made up of cells as well.  now when there is a break in the skin blood pours out, why not water? because the water is still contained within each individual cell.  The cells themselves are not broken only pushed apart by whatever is poking you.  that make sense?
282858
Nothing serious I hope. I heard once that when they are new, the blood vessels are so close to the surface of the eye that the slightest touch would cause bleeding? Made sense at the time. That's for brand new babies though. If it continues call the doctor! ASAP.. Congratulations!~:)x