Medical Science

The terms heart disease and cardiovascular disease are often used interchangeably. Heart disease is a broad term used to describe a variety of diseases that affect ones heart and sometimes blood vessels. Cardiovascular disease is a term that generally refers…
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Circulatory systems are necessary for living organisms to transport nutrients, waste and gases from all the cells in the body. Even single cell organisms perform this function and use their surface as an exchange point. In humans, the pulmonary circulation…
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The skin is the covering layer of the body. It has a protection function as is seen from the type of epithelium that its epidermis layer has. It has a stratified sqaumous keratinized epithelium, which is composed of several layers…
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Breathing is a necessary mechanism in the human body. A breath occurs in two parts, inhalation (or inspiration) and exhalation (or expiration). The breathing cycle is controlled by the nervous system, particularly the respiratory center of the brain, and respiratory…
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The kidneys maintain the pH, ion, and fluid balance of the blood. Humans usually have two of these bean-shaped organs in the abdominal cavity. To achieve their function, the kidneys are made of basic filtering units, called nephrons, intertwined with…
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The autonomic nervous system is divided into two parts.  These are: the sympathetic nervous system and the parasympathetic nervous system.  The sympathetic nervous system originates in the spinal cord at the levels T1 to L3 where T stands for the…
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Interesting facts about the brain The brain contains about 10 billion neurons, along with cells called glia, which support the neurons and help them do what they do. Each neuron consists of a cell body, a long tendril called an…
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When a person ages, there are certain structural changes that takes place in many organs of the body. Bones are one of the organs which see a significant change in its structural integrity with the losing of mineralization, proteins, as…
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Causes of birthmarks… *Don’t believe old wives tales: Many old wives tales use to make a woman feel she did something she shouldn’t have done if her newborn was born with a birthmark. Women don’t believe anyone’s tales about birthmarks…
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Smoking is bad for the human body. There are billboards, commercials, and even warnings on the package. Yet thousands are addicted to the drugs in cigarettes and continue to smoke. Smoking is harmful to the body in many ways, but…
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