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...
Structure and function of the esophagus
By: Erich Rosenberger M.D.
The esophagus is an often overlooked organ which is a vital component of your digestive system. Without it, there would be no way for food and liquids to make their way from your mouth to your stomach. It doesn't take a doctor to realize that...
A gastric system can heal
By: Alicia M Prater PhD
The gastric system is also called the gastrointestinal tract. The whole tract consists of the route food takes into your body, through digestion, and out as waste, though when referring to the GI tract it is often simply the stomach and intestines. The gastric system...
Nonspecific immune system defenses
By: Erich Rosenberger M.D.
Your body is being continuously bombarded by bacteria, viruses and even fungi. Every day, no matter how clean and careful you are, you are exposed to millions of potential pathogens. Fortunately, your body has developed defenses which are able to protect you against most of...
Mechanisms of shock and hypotension
By: Erich Rosenberger M.D.
Shock is a medical term which describes a condition where blood flow, and more importantly, oxygen supply to tissues, is inadequate to meet the metabolic needs of those tissues. There are several factors which affect the ability of oxygen to be delivered to the tissues...
Introduction to the structure of the eye
By: Alicia M Prater PhD
The eye is designed to focus light onto specialized nerve endings that translate the light waves and photons into pictures our brains can understand. Sight is the interpretation of those signals by the brain, which allows a person to interact and recognize the world around...
Biology: The human heart
By: Mary Pagay
The heart is the main organ of the cardiovascular system. Its job is to pump blood to all parts of the body through a network of vascular channels knowns as veins and arteries. The heart pushes out oxygenated blood through the arteries to be carried...
Facts about the human brain
By: Summer Tyme
The brain, our most important organ never takes a day off. Even when we are asleep, our brain is still working to keep us alive. During sleep, it is also recuperating through our dreams, sorting through the previous day's activities. Contrary to what you may...
Understanding the human brain
By: Tony Gomes
Scientist believes that human brain is the most complicated and the most complex object in the universe .In the brain there's about 50 billions neurons with a quadrillion synapses ( connections), and with a capacity of operation in maybe 10 quadrillions times per second.just...

 

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