Understanding the human brain
By: Lain
The Brain is one of the most amazing organs in the human body. It regulates and controls a number of different body functions, controls movement, helps us to experience sensation and emotion. In a journey through the brain starting from the top of the spinal...
Left-handed versus right-handed: Who is superior?
By: Brittany L. Morgan
LEFTIES VS. RIGHT-HANDERS: WHO IS SUPERIOR?You've heard the myths about why lefties are 'not quite right'. But are they true?Throughout the ages, many aspects of human civilization have been based upon the misconception that lefties are inferior to the right-handed. Tools, scissors, and...
The functions of red blood cells
By: Emma Walker
Blood accounts for about 8% of total body weight and is made up of three types of specialised cells, one of which is the red blood cells also known as erythrocytes. The main function of erythrocytes is to carry oxygen around the body and deliver...
Why we yawn
By: Andreea M.
There are actually quite a few theories about what lies behind a yawn. A long-standing theory marks as cause for the yawning the lack of oxygen and excess of carbon dioxide in the blood. When the brain detects this it triggers the yawn reflex when...
What causes sneezing?
By: Nicolacho
Sneezing is our body's way to itch our nose. A sneeze, which is also referred to as sternutation, is generally caused by an irritation or itch inside the nose. When the interior of one's nose gets a slight irritation or tickle, signals are sent to...
The digestion process
By: Jason Todd
Have you ever wondered what your food goes through as it passes though your body? Everything you ingest goes through a pretty complex process in order for the nutrients to be absorbed into your bloodstream. Today, we'll look at the path of a meal consisting...
Body symmetry explained
By: Levi S. Johnston
Body symmetry is the description of the arrangement of a body and its parts and systems in a balance. The term symmetry implies that the body can be split in at least one way into equal, virtually identical halves. There are essentially four types of...
Why breathing right is important for survival
By: Erich Rosenberger M.D.
In medicine there is a saying, "You can live three weeks without food, three days without water and three minutes without air." Breathing is so natural and automatic that unless there is something preventing you from doing it, you never notice it happening. But...
Most vulnerable organs
By: Erich Rosenberger M.D.
There's no doubt that the world is a dangerous place for people. Bullets, fire, steam, car accidents, bear attacks, lightening strikes, falls, and a million other things can all cause harm to our bodies. Some parts of the human body are more susceptible to damage...
Why we use fingertips to feel things
By: Erich Rosenberger M.D.
We use our fingertips to feel things mostly because if you were to squeeze a piece of fruit in the grocery store with your toes, you would be kicked out of the store. Similarly, touching a soft blanket with your kneecap isn't likely to give...

 

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