Embryology and anatomy of the large intestine
By: Nicole Evans M.D.
An understanding of the anatomy of the large intestine is useful for individuals with intestinal disorders, students of biology or medicine, and those persons with risk factors that can result in life-threating problems of the intestines. Examples of these risk factors include a hypercoaguable state...
A look at how CPR restarts the circulatory system
By: Cynthia Wall
It can happen in a heartbeat or rather the absence of one. For whatever reason, the heart stops heart attack, electrocution, drowning, etc. When the heart stops, the blood stops flowing; the heart and brain no longer receive blood and tissue begins to die...
The heart's role in circulation
By: Char Brar
The size of the fist of you hand, your heart pumps 24 hours a day non-stop to feed your body. Hence it is one of the most vital organs in your body. There are lots of stories and poems that connect heart to emotions...
The role of the placenta in fetal circulation
By: Effie Moore Salem
The placenta is what connects the baby to their mother's circulatory system. It is essentially the lining of the uterus while the baby is in the mother's body. The umbilical cord is attached to the baby and via a network of blood vessels the...
A look at how varicose veins develop
By: Vinny Knowles
One day as you are sitting at your desk working, you notice a pain on the top of your foot. You look down and are shocked to see an ugly bulging vein! Chances are you are familiar with this sight, because they often run in...
An overview on diseases of the heart and cardiovascular system
By: Leslie Schwab
Diseases that affect the heart and cardiovascular system may be due to external factors, such as a bacterial or viral infection, but they are largely due to factors that are the result of human behavior, such as poor diet, lack of exercise, or living under...
The heart's role in circulation
By: Leslie Schwab
There are two main components of the circulatory system. There is the series of tubes, called the vascular system, that carries oxygen and nutrients to all of the trillions of cells that make up the human body. The other component is the heart, which is...
A look at how varicose veins develop
By: Cynthia Wall
The human circulatory system is a thing of wonder. Blood flows through arteries from the heart to every destination in the body. Veins and capillaries (tiny veins) continue the distribution process until every cell of your body is nourished with oxygen-rich blood. Then the long...
A look at how varicose veins develop
By: Lisa Stephens
Most people at some point in their life have either experienced for themselves, known someone who has experienced or has observed someone who shows the signs of varicose veins. For those who suffer from this condition face anything from an unsightly cosmetic appearance to...
How the human heart works
By: Kim Stairs
The heart is an amazing specimen. Without the heart, our body tissues would not get the oxygen exchange and other nutrients required to survive. The heart is responsible for carrying out the job of transporting our blood through our entire body, including itself. When...

 

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