The reason we blink
By: Erich Rosenberger M.D.
We blink because if we didn't, we'd all walk around staring at each other like a deer caught in headlights. Animals that don't blink are highly disconcerting to watch as well. For example, have you ever gotten in to a staring contest with a pigeon...
By: Gary Rushworth
The Electrocardiogram (ECG)An electrocardiogram, also referred to as an ECG or EKG (older term) is a graphical representation of the electrical avtivity in the heart or how the heart reacts when it is stimulated.An ECG is performed by placing electrodes, or sensors, on specific...
By: Alicia M Prater PhD
The so-called "out of Africa" theory has been debated alongside a multi-regional concept for years. The difference between the two is whether humans (Homo sapiens) evolved from one population or from multiple populations. The latest DNA evidence supports the evolution of humans from a single...
The appendix: Is it a useless part of the human anatomy?
By: Cindy Vickers
Specialized Structure or Vestigial Organ? The appendix is a long, narrow, worm-shaped tube connected to the cecum, the blind pouch that forms the first portion of the large intestine. Average length is three inches with variations from less than one inch to more than eight...
Will Political Setbacks for Stem Cell Advocates Destroy Medical Research Efforts
By: Barry Williams
Throughout history science has always be at the mercy of the ignorant fearful that their carefully nurtured world will be beyond their control. These ignorant people who unfortunately held positions of great power over centuries have been responsible for holding back and retarding the advancement...
The digestion process
By: David Wright
Digestion involves a large number of steps, mechanisms and enzymes so here I will just give a general overview rather than get bogged down in details.The first step in digestion that many people miss is chewing (or mastication) which breaks food down in chunks...
Structure and function of the small intestine
By: Erich Rosenberger M.D.
The small intestine and is an extremely vital organ in your gastrointestinal system. Along with the stomach, it is the major organ involved in the process of digestion. A large variety of nutrients such as carbohydrates, protein, fats, and many vitamins and minerals are absorbed...
Modern medicine and its effects on our future: An assessment
By: J. Santari
Through enhanced medical knowledge, technology, and the easy lives we have made for ourselves, a situation has developed which demands our attention. This is a new situation, something that has only just begun with the advent of modern medicine in the last 100 or so...
The function of the kidneys
By: Tarek Musslimani
The kidneys have several functions. These are: Regulation of blood electrolytes composition. The kidneys regulate the blood level of some electrolytes. among them are sodium ion, potassium ion, calcium ion, chloride ion and biphosphate ion and water. sodium and water are reabsorbed by the proximal...
How the liver works
By: Tarek Musslimani
The human liver is second in size after the skin, which is considered as an organ. The liver is situated in the right upper side of the abdomen. It is attached to the gallbladder through canals, which are used to transport bile from the liver...

 

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