By: Norma Chew
Sinuses are air cavities within the facial bones. There are four pairs of sinuses that communicate with the nose called the paranasal sinuses. They are named according to their anatomical position, the Frontal, Sphenoid, Ethmoid and Maxillary Sinuses.The Frontal Sinus is located above the...
By: JRR
One of the most intriguing and complex organs in the human body, the human brain still continues to challenge scientists and doctors. Much more is now known about it than even 10 years ago, but there is still much left unknown. Scientists still only have...
By: Janet Grischy
To a large degree, we are what we remember. We create our sense of self out of recollections of our experience, and we decide what to do in everyday situations on the basis of "what happened last time." The information storage systems in our...
By: Maurice Sassoon
Sleep is a period in which the body rests almost completely. It is as much a part of living as wakefulness. We are active for the most part of the day, shopping, working and doing different chores in order to make a living. Sleeping restores...
By: Norma Chew
According to WebMD, "the mitral valve lies between the left atrium and the left ventricle." The mitral valve allows blood to flow from the left atrium into the left ventricle. It closes to prevent the back flow of blood into the left atrium during...
Introduction to the structure of the eye
By: Tarek Musslimani
The human eye is very unique, if we compare it with a camera. It gives us the ability to see things in three dimensional picture. Inspite of this, our vision has its own limitations. We cannot see all the wavelengthes of the light spectrum. What...
Why the body needs sleep
By: D. P. Noe
You are only sleeping five or six hours a night and believe that is good enough. The truth is your body needs at least 8 hours of sleep every night. You have an increased risk of heart disease, diabetes and high blood pressure and recent...
The human reproductive system
By: Tarek Musslimani
We will discuss in this short article the male and female reproductive system shortly. Firstly, we will discuss the male reproductive system and then the female reproductive system. The male reproductive system consists of the Testis and epididymis, in addition to the important gland of...
Do Humans use only 10 Percent of their Brain
By: G E Barr
PREMATURE PROJECTIONHow can we know just how much of the brain is used when we do not know how to fix it and we know so little about it? With the possible exception of the pancreas, is there another organ about which we can do...
Function of the coronary arteries
By: D. P. Noe
If you have been diagnosed with heart disease, you need to increase your knowledge about your heart and the function of the coronary arteries that are the blood supply for your heart. Your heart is a hallow organ that is constantly pumping blood throughout your...

 

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