Parts of the Brain (CEREBRUM)

• The brain is made up into three parts:

  1. Cerebrum
  2. Each hemisphere has an outer cortex and an inner MEDULLA
  3. MEDULLA has NERVE FIBERS (AXONS) and is white in colour, so called WHITE MATTERS
• CEREBRUM

  Largest part of the brain
• CEREBRUM

  (a) it is divided into two halves called CEREBRAL HEMISPHERES

  (b) The highly <- outer surface is highly convoluted, containing ridges and grooves

  (c)The gray matter is folded to form the ridges and grooves
• CORTEX has CELL BODY (NERVE CELLS) and is grey in colour, so called GREY MATTER.
• The folds are called GYRI and the grooves are called SULCI.
• The folds help in to accommodate more number of nerve cells.
• The two CEREBRAL HEMISPHERES are attached to one another by a sheet of fibers called CORPUS CALLASUM
• The functions of the CEREBRUM are:

  1. To think, reason out, plan, and memorize.
  2. It is the seat of Intelligence, conciseness, and will power.
  3. Controls all VOLUNTARY MOVEMENTS.