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Topic: Blood circulation

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In the News (Sat 17 Aug 19)

  Blood - Wikipedia, the free encyclopedia
Blood is a circulating tissue composed of fluid plasma and cells (red blood cells, white blood cells, platelets).
Blood cells are degraded by the spleen and the Kupffer cells in the liver.
Infection of the blood is bacteremia or sepsis.
en.wikipedia.org /wiki/Blood   (1734 words)

 PATTS - Cardiovascular System
Blood in arteries is oxygen-rich, with the exception of the pulmonary artery, which carries blood to the lungs to be oxygenated.
Blood in veins is oxygen-poor, with the exception of the pulmonary veins, which carry oxygenated blood from the lungs back to the heart.
Blood pressure is measured in mm of mercury, with the systole in ratio to the diastole.
webschoolsolutions.com /patts/systems/heart.htm   (1635 words)

 Blood Circulation
Blood is composed of a liquid portion known as plasma and several cell components.
The blood vessels that carry the oxygen-rich blood to the organs are known as arteries.
Blood rich is oxygen is a bright red, whereas blood that has had the oxygen extracted is a dark red to purple color.
www.cts.usc.edu /hpg-circulationofblood.html   (171 words)

 The spider blood circulation
It is used locally to raise the blood pressure during moulting (shedding of old skin) and stretching the legs.
Blood vessels do transport the blood to a specific place but thereafter the blood flows freely in the open spaces between the organs.
The blood is pumped to her head raising the pressure from 20 kPa to approximately 40 kPa (0.4 atm).
www.xs4all.nl /~ednieuw/Spiders/InfoNed/blood.html   (899 words)

 Blood Circulation   (Site not responding. Last check: 2007-10-21)
Blood transports oxygen from the lungs to body tissue and carbon dioxide from body tissue to the lungs.
From the right atrium the blood then enters the right ventricle through a valve (tricuspid valve), which in turn pumps it to another valve into the pulmonary trunk and arteries to the lungs where the blood will be oxygenated through respiration.
Blood circulating through vessel provide two important means of measuring vital health statistics: pulse and blood pressure.
www.sinc.sunysb.edu /Stu/vzephiri/BloodCirculation[2].htm   (738 words)

 Circulatory System   (Site not responding. Last check: 2007-10-21)
On average, your body has about 5 liters of blood continually traveling through it by way of the circulatory system.
The heart, the lungs, and the blood vessels work together to form the circle part of the circulatory system.
The pumping of the heart forces the blood on its journey.
sln.fi.edu /biosci/systems/circulation.html   (94 words)

 Blood Circulation   (Site not responding. Last check: 2007-10-21)
Blood carries oxygen and nutrients to your body’s tissues, assists in the removal of carbon dioxide and waste products, and promotes the overall health of the body’s tissues.
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying into the right atrium.
Blood then leaves the right ventricle and the heart through the pulmonic valve into the pulmonary artery and to the lungs.
www.communitymemorial.com /heart/bloodcirculation.htm   (216 words)

 The Heart and the Circulatory System
It is the ventricles that are the real workhorses, for they must force the blood away from the heart with sufficient power to push the blood all the way back to the heart (this is where the property of contracting with more force when stretched comes into play).
When the atria end their contraction and the ventricles begin to contract, the blood is forced back against the valves between the atria and the ventricles, causing the valves to close.
Other current cardiovascular research involves drugs that control the blood pressure or heart rate, artificial blood substitutes, and devices implanted in the wall of the heart that can detect changes in the rate or patterns of contraction of the ventricles and correct them before a heart attack occurs.
www.accessexcellence.org /AE/AEC/CC/heart_anatomy.html   (3207 words)

 Placenta - Abstract
The first one, with blood, is aimed at the study of the fluidodynamics of placental vessels, while the second one wants to "fix" the vessel structure to prepare it for a following morphometrical examination.
During the beginning of our experimentation the main difficulty we met with came from the attempt to supply the umbilical arteries with a flow close to the physiological one, because a very high pressure was generated for a condition of general constriction of the placental vessels.
The model, realised using an equivalent electric circuit, was firstly applied to study the fluidodynamics of the fetoplacental circulation in the physiological situation, then in pathological situations, associated to infarction of vessels in rising percentage.
www.geocities.com /placenta_rb/Abstract.html   (2161 words)

 Blood Circulation in the Fetus and Newborn - Children's Hospital of Philadelphia
Blood then passes into the left ventricle (lower chamber of the heart) and then to the aorta (the large artery coming from the heart).
Instead of blood flowing to the lungs to pick up oxygen and then flowing to the rest of the body, the fetal circulation shunts (bypasses) most of the blood away from the lungs.
In the fetus, blood is shunted from the pulmonary artery to the aorta through a connecting blood vessel called the ductus arteriosus.
www.chop.edu /consumer/your_child/condition_section_index.jsp?root_id=0&id=-8752   (416 words)

 Increase blood circulation for circulation problem and poor circulation.
Many health problems are associated with poor circulation, when the oxygenated blood carrying vital life giving properties can not circulate to all parts of the body.
Another serious circulation problem is Raynaud's disease with symptoms that include constriction and spasms of the blood vessels in the fingers, toes and tips of the nose.
What ever the cause of poor circulation from a condition or over weight, no exercise or poor diet high in fats, it is important that the blood carrying oxygen get to all the parts of the body with little or no restriction.
www.naturallydirect.net /circulation-problem.htm   (1077 words)

I was greatly pleased to see very distinctly the circulation of the blood [in the tadpole, which was driven on from the parts that were nearest to the body to those on the outside, thus causing an uninterrupted, very rapid circulation.
This circulation was not regu­lar in its movement, but at very short intervals it was continually brought about anew with sudden impulses, and before there was another sudden impulse we might (in case we had not observed a continual increase in the rapidity) have thought that a stoppage in the circulation would follow.
These blood vessels, called "arteries and veins" (being neverthe­less identical), were exceedingly numerous at the ends of these fingers, and each ran in a curve, which made it impossible to follow the particular course of each vessel.
iweb.tntech.edu /chem281-tf/leeuw3.htm   (791 words)

 Blood Circulation - - TaoOfHerbs.com
Pain occurs when and where blood circulation is impeded and symptoms include lower abdominal pain, true heart pain, pain due to internal bleeding of the viscera or associated with contusion, pain from inflammatory congestion of the viscera and stubborn, deep-rooted pains of the viscera, limbs and body, etc. Blood stagnancy is another.
Blood circulation formulas are seldom single herb and in most cases are made of many herbs.
To tonify the blood and facilitate blood circulation and defense.
www.taoofherbs.com /categories/BloodCirculation_33.htm   (915 words)

 Circulation   (Site not responding. Last check: 2007-10-21)
Branches of the aorta convey blood to all the tissues and organs of the body (except the lungs).
The main sources are the hepatic artery, which as a branch of the aorta, supplies oxygenated blood to the liver and the hepatic portal vein, which is formed by the union of veins from the spleen, the stomach, pancreas, duodenum and the colon.
The blood is returned from the heart muscle to the right atrium through the coronary vein, which enters the right atrium through the coronary sinus.
www.botany.uwc.ac.za /SCI_ED/grade10/manphys/circulation.htm   (488 words)

 FETAL BLOOD AND CIRCULATION   (Site not responding. Last check: 2007-10-21)
Only a small volume of blood enters the pulmonary circuit, because the lungs are collapsed, and their blood vessels have a high resistance to flow.
Most of the blood in the pulmonary trunk bypasses the lungs by entering a fetal vessel called the ductus arteriosus which connects the pulmonary trunk to the descending portion of the aortic arch.
The fetal blood supply passes to the placenta through two (2) umbilical arteries from the internal iliac arteries and returns through an umbilical vein which passes through the liver, ductus venosus, and joins the inferior vena cava.
www.cayuga-cc.edu /people/facultypages/greer/biol204/heart4/heart4.html   (877 words)

 Red Gold . Blood Journey . Phase 2 | PBS
Blood carries oxygen and nutrients to every cell of the body, carries away waste products, and plays a central role in the body's defense against intruders.
Pulmonary circulation, in which blood goes from the heart to the lungs and back to the heart, is when the blood exchanges carbon dioxide, a waste product it has picked up from the rest of the body, for oxygen, which it will carry to the rest of the body.
The de-oxygenated, carbon-dioxide-laden blood returning to the heart from the body enters the right side of the heart through two veins (one for blood coming from the lower half of the body, the other for blood from the upper half).
www.pbs.org /wnet/redgold/journey/phase2_a1.html   (465 words)

 Blood Circulation
The circulation of blood between the lungs and heart is called the pulmonary circuit.
This circulation of blood through the body to meet the needs of the tissues is called the systemic circuit.
This causes the blood pressure to drop in the capillaries which allows easier passage of materials between the tissues and the blood.
www.abbysenior.com /biology/circ.blood.htm   (2573 words)

 Blood Vessels
During blood circulation, the arteries carry blood away from the heart.
Besides circulating blood, the blood vessels provide two important means of measuring vital health statistics: pulse and blood pressure.
When we measure blood pressure, we use the blood flowing through the arteries because it has a higher pressure than the blood in the veins.
www.fi.edu /biosci/vessels/vessels.html   (333 words)

 Heart & Blood circulation   (Site not responding. Last check: 2007-10-21)
The blood is then pumped into the right ventricle and then through the pulmonary artery to the lungs, where the blood is enriched with oxygen (and loses carbon dioxide).
The blood is then pumped to the left ventricle, then the blood is pumped through the aorta and to the rest of the body.
The blood vessel that carries oxygen-rich blood from the lungs to the left atrium of the heart.
www.eduwebtech.com /heart.htm   (374 words)

 Blood Circulation - Gods Garden   (Site not responding. Last check: 2007-10-21)
Noni root compounds have also shown natural sedative properties as well as the ability to lower blood pressure, Leaf extracts are able to inhibit the formation of blood clots.
Blood flow rises from a normal five to seven quarts a minute too as many as 13 quarts a minute.
Finnish researchers, reporting the regular use of saunas state "there is abundant evidence to suggest that blood vessels of regular sauna-users remain elastic and pliable longer due to the regular dilation and contraction" of blood vessels induced by sauna use.
www.godsgarden.org /circulation.shtml   (4553 words)

 Blood Circulation Device   (Site not responding. Last check: 2007-10-21)
Blood path is the mainly operated tube of human body biology: in order to let all of the tissue function could be normally operated, it must be kept to meet no obstacle in all time and let blood to be reached the circulation duty which transport supplying Oxygen, nutrition and excreta.
So it's right to say that blood circulation which not passing freely are source of illness and beginning of grown old.
While the insufficient function of blood circulation, slowly of metabolism, the effects is not very good, will caused biology response which fatigue, worn out, sneeze.
www.ycyhealth.com /products/BodySlimMassager/BloodCirculation.shtml   (689 words)

 Experimenting with Blood Circulation
The heart is a mechanical device whose function is to pump blood through the body to replenish oxygen lacking blood cells with oxygen.
The importance of constant circulation of blood throughout the body cannot be overemphasized.
The strong contraction of the heart muscle forces blood into the arteries in two ways: the first expands the muscular walls of the arteries and the second pushes the blood through the arteries to regions of the body away from the heart.
www.msnucleus.org /membership/html/k-6/lc/humanbio/1/lchb1_5a.html   (699 words)

 Treating poor circulation difficulties - bad circulation
Blood is the body's main internal transport system and proper circulation is vital for good health.
Because the arteries are constricted, the blood exerts great force against the walls of the blood vessels, causing the blood pressure to rise.
Raynauds disease is marked by constriction and spasm of the blood vessels in the extremities.
www.organicnutrition.co.uk /articles/circulation.htm   (926 words)

 blood circulation problems   (Site not responding. Last check: 2007-10-21)
Blood circulation problems from high blood pressure to varicose veins are covered here.
The thrombocytes cause the blood to coagulate, blocking relatively minor...
Increase blood circulation: Many health problems are associated with poor circulation, when the oxygenated blood carrying vital...
www.distressedfloors.be /7994-bloodcirculationproblems-86732.htm   (318 words)

 Blood Circulation in the Fetus and Newborn   (Site not responding. Last check: 2007-10-21)
Through the blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta.
From the aorta, blood is sent to the head and upper extremities.
After circulating there, the blood returns to the right atrium of the heart through the superior vena cava.
www.chw.org /display/router.asp?DocID=3401   (470 words)

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