According to the text, the Limbic system is involved in the regulation of sexual behaviour, expression of emotional reactions (e.g., excitement, pleasure, rage and fear), and motivation . The description 'consists of fibre tracts that interconnect different regions of brain' actually refers to the Pons , and the control of voluntary movements and balance is associated with the Cerebellum and Cerebral cortex . The other pairs are correct: Medulla oblongata controls respiration and cardiovascular reflexes , Hypothalamus regulates temperature, hunger, thirst, and hormones , and Corpus callosum connects the cerebral hemispheres .