which organ can withstand reduced blood flow?
341508
The skin might be the answer they want.\n\nWhen we face a sudden emergency, we produce adrenaline.  This reduces blood flow to skin (which goes white) and directs extra blood to muscles, for fight / flight reactions.  The skin is OK like that, for ages.\n\nWe also reduce blood flow to skin, to reduce heat loss in cold conditions.  It is not sacrificed; if the conditions in the skin become too bad, it is flushed by fresh blood.
312937
owww.. this condition only happened when breathing under high pressure? well.. i guess nothing much the arterioles can do but to lower its resistance and thus increase the blood flow...
608646
Any disease that would restrict oxygen flow to the brain would inhibit movement and hinder walking without falling down.  Pneumonia is probably the most common.
437074
During a heart attack, there is a blockage in a blood vessel in your heart.  Part of you heart doesn't get blood and oxygen, so it dies.  In a stroke, there is a blockage in a blood vessel in your brain.  Part of your brain can't get blood and oxygen, so it dies.  In serious cases, the blood vessel can actually burst open.  In either case, you've got serious problems.
748583
Yes..They can take any organ.... Blood type and sizeis the only factor.
220937
Forgive me for pointing this out, but survival is possible.\n\nOhter things can be used to maintain circulating volume: crystalloids (like saline) and albumin are the main ones.  Certainly, if you don't get transfused when you need it, you will have some real trouble with anemia, and with oxygen transport--but certain religioius groups, notably the Jehovah's Witnesses, refuse blood transfusions, no matter what.  They often endure more prolonged recovery because of that choice, and certainly many of them die when they would probably have survived with the transfusion, but the transfusion refusal is not a guarantee of death, even in extremely grim situations.\n\nIn longer term situations, the recovery can be accelerated by using erythropoetin or an erythropoetin analog to accelerate production of red cells; this is slower than transfusion, but it has rescued a lot of people who refused transfusions.
781922
A circulatory system (cardiovascular system in biology classes) is an organ system that moves substances to and from cells; it can also help stabilize body temperature and pH (part of homeostasis). There are three types of circulatory systems (from simplest to most complex): no circulatory system, open circulatory system, and closed circulatory system.\n\nYou could get more information from the link below...
426636
Gall bladder, tonsils, appendix, one lung, one kidney, arms, legs, several lymph nodes, external genitals, reproductive organs, nose, tongue, teeth, ears, small carefully chosen pieces of the brain, turbinates, eyes, many nerves, most skeletal muscle, a considerable amount of intestine, larynx, lower jaw, many endocrine glands.\n\nThe list gets longer if it's okay to be on life support.
133269
Yes at least for awhile longer. As the breathing becomes more inadequate the heart will work harder and the organs of the body will not be efficient....then there will be a change in blood chemistries.  If the lungs don't work well, the heart will suffer.  If the heart suffers, the kidneys don't work well....it progresses quickly at the end of the end stage.
595047
Yes, depending on the cause of impotence. Vascular leaks and advanced atherosclerotic or neurogenic impotence responds less well, or not at all.
205523
The heart rate would slow to conserve energy also each heart beat would be more efficient due to vasoconstriction of the extremities. At very low temperatures the body starts to decide which parts are more important than others to keep alive. It all comes down to the brain and the heart.
495205
The heart is a muscle.Like most muscles in the body they need to be excercised regularily to perform at optimum levels.Lack of excercise combined with poor diet may lead to heart disease.As well the vascular system is basically the system that gets "sick" you get build up on the inside of your arteries that in turn increases your blood pressure.which in turn can put you at risk for all sorts of things like strokes and aneurisms.your heart needs to be fed as well and this is done by a series or blood vessel connected to the heart.If they become blocked you may have a heart attack which basically kills the tissue being deprived of blood.Regular excercise and a healthy diet increase your chances of good heart health.
1056387
possibly circulation shutting down? lack of oxygen, lack of blood pressure? Depends what has failed.
968702
A cleanly severed vessel is less likely to clot, therefore less likely to stop the blood flow. A crushed or mangled vessel has more places for the clot to form, so it could potentially stop the bleeding. Think of it like a garden hose - a nice clean cut gets a lot of water thrugh it. A mangled end still lets water out, but it impedes the flow. The slower the flow, the better chance of clotting (plus a slower flow means less blood loss).
719315
I've never heard of 'cycle of the devils' before.  Are you talking about Heart Function decrease due to age and disease or when we are at rest?\n  If it's a Congestive Heart Failure Thing, I think that phrase might be referring to a destructive cycle between the kidneys and the heart.  When the heart decreases its function, the kidney sometimes read the lack of blood pressure as dehydration. So the kidneys keep water in the body to hopefully increase the fluids in the blood and therefore increase blood pressure.  This causes extra fluid in the blood and lymph system.  Since the heart is weak the fluid moves slowly and will seep into surrounding tissues.  That's why Feet swell up, it's called Edema.  It also seeps into the lungs, making it harder to take in Oxygen.  This signals the kidneys to keep more water in the body and excrete less.  this makes it worse.\n   I hope this helps, maybe it's nowhere near to the actual question you were asking.  Hey, you know more on CHF now!
91363
lack of oxygen and poor circulation
634762
Airway, Breathing, Circulation