Why the principal problem of bioethics is the moral status of the embryo
By: Luis Enrique Perez
The bioethics is the ethics applied to sciences of the life. These sciences include genetic engineering, xenotransplantation, medicine and gerontology. The object of the genetic engineering is to combine molecules of deoxyribonucleic acid (or DNA, that contains the genetic code), and to insert them...
By: Silva Payne
If you were able to prepare sensibly before your surgery occurred, recovery at home should be a gradual but not difficult process. The recovery period itself will be determined by the type of surgery and how invasive it was; a small local anaesthetic as a...
Iridology is Pseudoscience
By: Alicia M Prater PhD
Iridology is the diagnosis of disease based on the appearance of the iris, the colored part of the eye. The practice is considered an "alternative" medicine in that it is not an accepted practice of the basic medical establishment. The reason for it's lack of...
Reasons why oxygen is so important to the blood and cells
By: Cynthia Wall
If you were a fish, you'd have to work a lot harder at getting oxygen to your blood cells. The air around us contains 13 times more oxygen than water does. Fish and amphibians are able to use that oxygen by absorbing it through...
An overview of pulmonary circulation
By: Sharmal Kelambi
Pulmonary circulation as the name implies (pulmonary=lungs; circulation=exchange) circulate blood to and from the lungs. It is one of the two parts of the cardiovascular system, where systemic circulation being the other. Cardiovascular system is the blood supply of the entire body, being formed of...
An overview on how blood vessels deliver nutrients to cells
By: Janet Farricelli CPDT-KA
While it is pretty straightforward that humans need food in order to survive, not many people are aware of the fact that deep inside our body's core another form of nutrition takes place. That is the delivery of oxygen rich blood to our tissues, organs...
The importance of capillaries for circulation
By: Perry McCarney
The human cardiovascular (CV) system has three types of blood vessels: arteries, capillaries and veins. Circulation through the CV system goes from the heart through the arteries to the capillaries, on to the veins and back to the heart. The arteries and veins are...
Biography: William Harvey
By: JRR
William Harvey was an English physician born April 1, 1578 at home to Thomas Harvey and Joane Halke. He is known as the first person in the western world to correctly describe systemic circulation. He also proved blood was pumped by the heart. Young William...
The role of the lungs in pulmonary circulation
By: Perry McCarney
The lungs re-oxygenating our blood is what pulmonary circulation is all about. We have a cardiovascular (heart and blood vessels) system composed of two closed circuits. The pulmonary circuit takes de-oxygenated blood, containing low levels of oxygen and large amounts of carbon dioxide, from the...
How smoking impacts the human circulatory system
By: Trenna Sue Hiler
Smoking is bad for the human body. There are billboards, commercials, and even warnings on the package. Yet thousands are addicted to the drugs in cigarettes and continue to smoke. Smoking is harmful to the body in many ways, but probably causes the most damage...

 

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