Give a thorough explanation for the question provided:
What are the major parts of the brain? Mention the functions of different parts.
a. The hindbrain region which has fibre tracts that interconnect different regions of the brain is __________.
b. The hindbrain region which helps in maintaining posture and balance of the body while doing voluntary action is _________.
c. _________ is the region mainly responsible for the process of thinking.
d. The region which controls the urge for eating and drinking _________.
e. The region which has control centres of respiration, cardiovascular reflexes and gastric secretion is ____________.