Question

Select the option which describes the correct parts of the human brain with the functions mentioned below:
I. It contains association areas that are responsible for complex functions like intersensory associations, memory and communication.
II. It controls osmolarity of body fluids, urges for eating and drinking.
III. It is involved in the regulation of sexual behaviour, expression of emotional reactions.
IV. It controls cardio-vascular reflexes and gastric secretions.

• A. I-Cerebrum; II-Medulla; III- Limbic system; IV-Hypothalamus
• B. I-Cerebellum; II-Hypothalamus ; III-Cerebrum; IV-Medulla
• C. I-Cerebral cortex; II-Medulla; III-Hypothalamus; IV-Limbic system
• D. I-Cerebral cortex; II-Hypothalamus; III-Hypothalamus and Limbic system; IV-Medulla

Answer 1

Answer: (D)

Cerebral cortex contains association areas, are responsible for complex functions like intersensory associations, memory and communication.
Hypothalamus control body temperature, osmolarity of body fluids, urge for eating and drinking. The inner parts of cerebral hemispheres and a group of associated deep structures like amygdala, hippocampus, etc., form a complex structure called the limbic lobe or limbic system. Along with the hypothalamus, it is involved in the regulation of sexual behaviour, expression of emotional reactions (e.g., excitement, pleasure, rage and fear), and motivation.
The medulla of the brain is connected to the spinal cord. The medulla contains centres which control respiration, cardiovascular reflexes and gastric secretions.