Biography: William Harvey
By: Alysa Dudley
Imagine a time when surgeons work without the use of anaesthesia and blood-letting is a common practice. It's a time when very little is known about how the human body works.This was the state of medicine when William Harvey was born in 1578. He...
An overview of pulmonary circulation
By: Lisa Stephens
Pulmonary circulation is one part of the cardiovascular system that serves the lungs exclusively. Its role is to transport oxygen depleted blood away from the heart to the lungs, and return back to the heart with oxygen rich blood. Physicians and scientists have been examining...
By: Alison Bowler
Hookworm is a gastrointestinal parasitic infection. It is estimated that one billion people worldwide may be infected by hookworm. The infection is most commonly found in tropical and sub-tropical climates. The adult worm is about one centimeter long. There are four different hookworm species that...
How smoking impacts the human circulatory system
By: Cyndi Li
Cigarette smoking can lead to a host of medical conditions and diseases, lung cancer being the leading one. As much as the lungs are adversely affected by smoke it's not just these two vital organs that are affected. Considering the human body works as a...
The role of the lungs in pulmonary circulation
By: Caroline Fynn
Pulmonary circulation refers to the blood circulation between the heart and the lungs. The pulmonary arteries carry deoxygenated blood away from the heart into the lungs for oxygen renewal, and then the pulmonary veins take the oxygenated blood from the lungs back to the heart...
An overview on diseases of the heart and cardiovascular system
By: Caroline Fynn
Diseases of the heart and cardiovascular system affect one in four people between the ages of thirty and sixty five. Risk factors include: Smoking, obesity, a high amount of blood cholesterol, a lack of physical exercise, high stress levels and poor diet. One of the...
Biography: William Harvey
By: Effie Moore Salem
It was William Harvey, an English physician who sought to learn the function of the valves in veins - from an earlier physician's discovery - that led to his discovery of the circulatory system. It's a bloody story, as a true Englishman might say...
How smoking impacts the human circulatory system
By: Janet Farricelli CPDT-KA
If you are considering to quit smoking, perhaps learning more about the negative impacts smoking has to your circulatory system may work as a further incentive to successfully call it quits. Indeed, smoking does much more than causing a foul breath, an annoying chronic cough...
How the human heart works
By: Caroline Fynn
The heart is located in the space between the lungs known as the thoracic cavity in the mediastium. It lies slightly to the left and is approximately the size of the fist. The interior of the heart is divided into four chambers; the two...
The role of the placenta in fetal circulation
By: Lisa Stephens
For the nine months of pregnancy, the placenta serves an essential role in the survival of the fetus. Once the baby is born into the world the placenta is then expelled from the body and is no longer needed. It is the only organ in...

 

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