Structure and function of the human brain
By: Helium01
The brain is about the size and weight of a grapefruit, has a pinkish color, and has about the same consistency as Jell-O. Scientists once thought that, unlike other organs, the brain was a huge single cell, but we now know that the brain contains...
By: Janet Grischy
Cells have evolved several ways to deal with damaged DNA, because it happens so often and can be so deadly. The first line of defense is DNA repair, but sometimes that fails. Next, the body tries to deal with DNA damage at the level of...
An overview on diseases of the heart and cardiovascular system
By: April Showalter, MSHS, CHES
Exercise and nutrition in the prevention of cardiovascular disease Cardiovascular disease is a catch all term used to describe an array of diseases related to the heart and blood vessels. The heart is the pump that distributes blood throughout the body and the blood vessels...
By: Nicole Dupont
The First Human Heart Transplant Surgery Many people said that it could never be done. The ones who believed were too afraid to try. But all that changed on December 3, 1967. Christiaan Barnard led a team of surgeons to perform the first human...
Skin grafts explained
By: Frances Stanford
In surgery, a graft is the transplantation of tissue from one part of the body to another. They are performed for various reasons to close large wounds. Burn victims often need to have skin grafts when the skin has been burned off a part of...
Use of yeasts in biotechnology
By: Michael Rehman
Yeasts belong to the kingdom Fungi of the five kingdom classification of living organisms. The other four are - animalia, plantae, protista and monera. If there were ever a prize for organisms that contributed most to the success today in biotechnology - I think budding...
What are the different types of trigger points?
By: Tina Samuels
Trigger points are muscle nodules that many researchers believe are a source of pain and referred pain in the body. These spots are used in trigger point therapy either by massage, chiropractors, or through acupuncture methods to release stress and tension in the body...
By: Vonda J. Sines
For many victims of domestic abuse, emotional healing is only one part of moving forward with life. They've also suffered injuries that disfigure and sometimes prevent them from leading anything resembling a normal life.The Face to Face project is one component of the Educational...
Cloning
By: Pauline Clementson
IS CLONING PETS A SLIPPERY SLOPE TO HUMAN CLONING? Yes. I think it is a very slippery slope. Remember Hitler? He may not have used the scientific advances that we have at our disposal today but the idea of a selected race of people...
The various functions of angiotensin II
By: Alicia M Prater PhD
The renin-angiotensin system (RAS) is a multi-organ system of proteins and receptors regulated by hormones and cytokines to control a number of mechanisms associated with fluid balance and vasoconstriction. Angiotensin II (Ang II) is the main active peptide in the RAS, and research has shown...

 

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