Thursday, 15 January 2015

The Human Brain


The human brains are made of many different areas. Each of these areas is most important with specialized functions. Basically brain is divided in three main parts
  1. The Brains stem
  2. The Mid brain
  3. Fore-brain

The center of the brains comprises the brains stem and midbrain. The function of midbrain and largely preserved on the years of evolution. The work of forebrain, however, its changed somewhat. The bark is highly developed with solving of thinking and problem.

1) The Brains stem

This part of the brains is similar to animals of lower specie, and did not change with evolution. The brains stem contains structures including the medulla oblongata that heart rate, control breathing, and digestion that coordinate sensory input and maintain movement and balance.

2) The Mid-brains

This area of the brains is responsible for hearing, vision, temperature control, and vigilance. Midbrain links the brains strain with the thalamus, for information that the meanings of the brains and back muscles permits must be repaid. Midbrain also contains a limbic system, which is above the brains stem and under the bark. It contains a plurality of interconnected structures that temperature control, hormones, and regulates emotions. This system also handles long-term memory. It contains

I) The hypothalamus

The hypothalamus regulates emergency responses just like the "fight or flight" response, similarly non-emergency indispensable processes like feeding and reproduction. This part also controls the release of hormones.

II) Amygdala

Amygdala part of the limbic system controls behavior.

III) Hippocampus

This area is the cause of itself forming, storing and organizing memory.

Midbrain and the limbic system also form a part of the Reticular Activating System. It is the region that regulates waking and sleep.

3) Fore-brain
This area contains the cortex and surrounds of the brains stem and midbrain. It is highly advanced and has a very complex structure. Forebrain involved in thinking and problem solving.
The bark is made up of lobes that are:

I) Frontal lobe:

The area of the brains occupied the advantage of the skull, and is located behind the forehead. This lobe is associated with decision - making, planning, voluntary movement, processing, speech, odor, and emotions.

II) Wall lobe:

This section of the brains processed sensory information and is the cause of the determination of the spatial awareness, navigation, and places. It is also involved in processing information with respect to touch, taste and temperature.

III) Temporal lobe:

the temporal lobe is involved in the processing of visual and hearings information and control to some aspects of perception, emotion and memory.

IV) The occipital lobe:

This is the optical processing center of the brains and consists of the largest proportion of the visual marsh area.