Types of stem cells
By: Tami Port MS
When a stem cell divides, each new cell can either remain a stem cell or specialize into another type of cell, such as a muscle cell, skin cell, or red blood cell, to name just a few possibilities. These cells can theoretically divide without limit...
By: Dr Pandula Siribaddana
Bone marrow is an integral part in the life of a human being, and it functions as the stemming-up region for many of the blood cells, including the red blood cells that carry oxygen from lungs to the other tissues. Furthermore, as it involves the...
Iron as a necessary ingredient to manufacture red blood cells
By: Carroll Colette J. Yorgey
Iron is an essential mineral needed by the human body for growth and development. It is an essential ingredient of the red blood cells and if the red blood cells are deficient in iron, iron deficiency or iron deficiency anemia can develop.The function of...
Understanding energy flow in the human body
By: Bob Lloyd
There are very many branches of alternative therapy that talk in terms of improving or enhancing energy flow but how does energy flow around the body?When we talk about having energy, we generally mean that we feel fit and healthy, able to stay active...
Structure and function of the bladder
By: Erich Rosenberger M.D.
Anyone who has ever used the bathroom, which I suspect is just about every one, is likely familiar with the bladder. But what exactly is the structure of the bladder and how does it work?The bladder can be thought of as a collapsible bag...
The evolution of the mammalian digestive system
By: Zain Arif
The emergence of mammals led to various modifications within the digestive system in order to accommodate the changes in diet. While there are differences in the digestive system among different animals as a result of evolution, many of the structures themselves have evolved very little...
How to prepare serum and plasma for blood testing
By: Dr Pandula Siribaddana
Blood tests carried out in modern day laboratories rely on extracting serum or plasma from whole blood withdrawn from patients. Unless the initially withdrawn blood is collected in an appropriate tube, the outcome may differ and could significantly affect the blood test results. What is...
The heart: An overview
By: Tarek Musslimani
The heart is a muscular pump in the body which pumps venous deoxygenated blood from the various organs of the body through the vena cava to the pulmonary circulation where it is processed by removing carbon dioxide from the blood into the lungs. In exchange...
How smoking impacts the human circulatory system
By: Lisa Stephens
Most people know that smoking is bad for you and that it can cause cancer, but are you aware that smoking also creates serious effects within your circulatory system - the heart, arteries and veins that carry blood throughout your body? Not only should we...
How the human heart works
By: Effie Moore Salem
The human heart pumps blood out to all parts of the body. You could say it is the engine of the body. Without it, there would be no blood circulating. The beating of the heart is heart muscle contracting and relaxing to send fresh...

 

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