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Brain Structure

The human brain is the most complex organ in the human body. It produces our every thought, emotion, feeling and experience. Here are some facts and figures about nature's extraordinaire:

The typical adult brain weighs around 1500 grams (3lb) within a 1.6 litre volume. It contains more than one hundred billion neurons (nerve cells) each of them is capable of a direct electrical and chemical communication with approximately 10,000 others. The connection gap between every pair of neurons is called a "Synapse". The human's little three pound organ contains more than one quadrillion synaptic connections overall, In addition to 10-30 trillion other nerve supporting cells called "Glia", or "glial cells". Learn More about Large Numbers to grasp the brain's capacity

These incredible numbers are just the tip of the iceberg. Even the most conservative estimations regarding the amount of possible neuro-circuits inside our head circle around the astronomical figure of 10 in the power of 1,000,000. This amount of neuro-connectivity implies that the capacity of the human mind is beyond measure.

The human brain's extraordinary capacity is mainly due to it's complex structure. Here's a quick outline of the brain's internal structure including the neurological functions related to each area:

Brainstem - The lower extension of the brain where it connects to the spinal cord. The neurological functions of the brainstem include survival functions such as heart rate, blood pressure, breathing, digestion and arousel.
Click here to find out more about Brainstem

Cerebellum - Located at the back of the brain. The cerebellum's functions include balance, movement and coordination.
Click here to find out more about the Cerebellum

Frontal Lobe - hosts our "higher cognitive functions". involved in organizing and planning, problem solving, attention and concentration, behavior and emotions.
Click here to find out more about Frontal lobe

Occipital Lobe - processes visual information, including visual preception and association zones supporting visual recognition of color and shape.
Click here to find out more about the Occipital lobe

Parietal Lobes - There are two parietal lobes in the brain (right and left). They are located right behind the frontal lobe and contain the primary sensory cortex which processes sensations such as pressure and touch. In proximity to the sensory cortex lies an association area that controls fine sensations such as weight, size, shape and texture.
Click here to find more about the Parietal lobes

Temporal Lobes - There are two temporal lobes, one on each side of the brain located at about the level of the ears. These lobes allow us to differentiate smells and sounds. Their functions also include sorting new information and storing it for short-term memory.
Click here to find out more about the Temporal Lobes

The next few pages contain detailed information about brain structure. Click "next" to continue.


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