Human Brain

Human Brain

• Brain is the main coordination center of the human body . The brain coordinates the input and output signals through a complex design. It is the widest and uppermost part of the human body .

The brain has three such major regions:-

1. Fore brain
2. Mid brain
3. Hind brain.

Forebrain

• It is the part associated with thinking .
• The various sensory receptors discussed above receive the inputs.
• There are various regions in the forebrain that perform the same.
• The stimuli sensed and information already available in the brain are put together and interpreted.
• Cerebrum 
  • Large outer part of the brain. 
  • Controls reading, speaking, hearing, thinking, vision, learning, emotions, and other senses.

Now these stimuli are associated with the sense organs in our body.

• But, how do you feel hungry and once you eat enough food, how do you feel full?
• This is associated with another center in the forebrain known as Hypothalamus.
• The Hypothalamus controls human appetite.

• Another important part of the forebrain is the pituitary gland .
  • It is referred to as the “master gland”.
  • It monitors and regulates many bodily functions through the hormones that it produces.

Midbrain and Hindbrain

• The actions that happen without thinking are called involuntary actions.
• Blood pressure, salivation and vomiting are controlled by the medulla in the hind-brain.
• The precision of voluntary actions is the responsibility of the cerebellum in the hindbrain.
• Cerebellum is also responsible for balance and posture of the body.

• The brain continues with the spinal cord by the Brainstem or Medulla Oblongata.
  • Connects cerebrum with the spinal cord
  • Includes the midbrain, pons and medulla
  • Controls breathing, eye movements, blood pressure, heartbeat, swallowing etc.