Wednesday, February 23, 2011

Brain Research

The brain contains nerve cells, known as Neurons, which makes up the organ so-called "gray matter". The neurons transit and gather electorchemical signal that are communicated through millions of nerve fibers called dendrites and axon, also known as the brain's "white matter". In between the spaces of these membranes, are filled with fluid that cushion the brain and keeps it from being damaged by coming in contacted with the inside of the skull.



The brain is made out of 3 main parts:
  • The forebrain, which consist of the  cerebrumthalamus and hypothalamous ( parts of the limbic system
  • The midbrain, which consist of the tectum and tegmentum
  • The hindbrain, which is made of the cerebellumpons and medulla



The Cerebrum
Also known as the cortex, it is the largest part of the human and is associated with the higher brain function, such as the thought and action. The Cerebral Cortex, is  highly wrinkled, which makes the brain more efficient, because it can increase the surface area of the brain and the amount of neurons within it. The Cerebrum has two halves or hemispheres, which are then future divided into 4 regions, called "Lobes" in each hemisphere. 

    Image of Cerebral Cortex
    Frontal Lobe -  located behind the forehead, which are associated with reasoning, planning, parts of speech, movement, emotions and problem solving.

    Parietal Lobe - located behind the frontal lobe, which are associated with touch, temperature and pain

    Occipital Lobe - located at the rear of the brain, which are associated with visual processing

    Temporal Lobe -  located near the temples, which are associated with hearing and memory



    Brain Stem
          Are made up of midbrain, pons, and medulla. Together they are located at the organ's base, controlling the reflexes, regulates when you fell sleepy or awake, and also the crucial basic life functions, such as:
               --> Heart Rate
               --> Breathing
               --> Blood Pressure