Q.

The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, pleasure, rage, fear etc. are:         [2023]

1 Brain stem & epithalamus  
2 Corpus callosum and thalamus  
3 Limbic system & hypothalamus  
4 Corpora quadrigemina & hippocampus  

Ans.

(3)

Limbic system or limbic lobe along with hypothalamus is involved in the regulation of sexual behaviour, expression of emotional reactions, such as excitement, pleasure, rage, fear, motivation, etc.