Human Body

Why do feet itch?

Jun 28th, 2008 | By

A medical term used for itching is “pruritus”. It is a feeling of tickling or distracting irritation. It can be on whole of the body or on a particular area. Most of us start scratching the area of itching but some can tolerate it to certain level. Itching is more if there are some distractions
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How do we speak?

Jun 26th, 2008 | By

Speech distinguishes humans from other apes. The physical aspect of speech pertains to the vocal chords, the larynx, the positioning of the tongue and the lips. Each of these plays a vital role in helping humans to speak. Of course, the brain coordinates the movement for speech functions as well as other functions. The vocal
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How to get rid of toothache?

Jun 21st, 2008 | By

Sometimes toothache is very painful, uncomfortable and can disturb your sleep at nights. There can be many reasons for the toothache. And the amount of toothache is mostly dependent on the cause of the toothache. Sometimes pain is so severe that the sufferer is ready to try anything to get rid of it. You must
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Why do we have nails?

Jun 20th, 2008 | By

Fingernails and toenails on the human body are from since the evolution of the species and these were very useful for the early people. They use them for climbing purposes. It has the same functions as the claws in the animals. At that time no tool was available for the human beings except that are
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Why do we blink our eyes?

Jun 18th, 2008 | By

Continuous process of opening and closing of eyelids is called blinking. A person approximately blinks after every four or five seconds. The first and foremost function of blinking is to spread the lubricant through eyelids and eyelashes. The lubricant is produced within the eyes itself to prevent it from drying. It also prevents injury and
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How many muscles are in the human body?

Jun 15th, 2008 | By

Muscles form the muscular system which is the network of fibers and tissues and causes the movements of body. There is not an exact number for the muscles. It depends on the expert’s opinion, some are complex muscles in which a branch of muscle is also considered as separate muscle. There is also very slight
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Why do we have nose hair?

Jun 9th, 2008 | By

Why we have nose hair? We always heard the answer for this question is that it protects foreign bodies and dust particles to enter in our body which is absolutely true. It acts as a filter for our nasal passages. We should not confuse cilia with nose hair. They are the small microscopic strands. Cilia
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How does the heart work?

Jun 2nd, 2008 | By

Heart is one of the most important organs of our body. It acts as a pump for supplying oxygenated blood and nutrients to all parts of the body. It is cone-shaped and approximately similar to the size of human fist. Heart is located on the left of breastbone. It has three layers called endocardium which
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