Question

The part of the brain where the centre for hunger and thirst is ;located is
A) Cerebrum
B) Hypothalamus
C) Cerebellum
D) Medulla oblongata

Answer 1

The brain is the largest and most complex organ in the human body. Brain is the central organ of the nervous system. The human brain controls most of the activities of the body, processing, integrating, and coordinating the information which it receives from the sense organs. Brain makes decisions according to the instructions sent to the brain.

Complete answer:
A) Cerebrum : The cerebrum is the uppermost part of the brain.It is also called the telencephalon and it is the largest part of the brain.The cerebrum develops prenatally from the forebrain.The cerebrum is divided into two cerebral hemispheres – left and right.The cerebrum controls reading, learning, thinking, speech, emotions, and planned muscle movements such as walking.This part also controls the vision, hearing and other senses.
B) HypothalamusHypothalamus is the small region of the brain.The hypothalamus is located at the base of the brain near the pituitary gland.Hypothalamus plays a crucial role in many important functions such as releasing hormones, regulating body temperature, maintaining daily physiological cycles, controlling appetite and thirst, managing sexual behavior, regulating emotional responses, etc.
C) Cerebellum: Cerebellum is the back of the brain.Cerebellum controls balance, coordination and fine muscle control like walking.The cerebellum also maintains the posture of the body.
D) Medulla oblongata : The medulla oblongata is the lowest part of the brain.Medulla oblongata acts as the control centre for the function of the heart and lungs.Medulla oblongata helps in regulating many important functions like breathing, sneezing and swallowing.
Therefore, it has been clear from the above discussion that the part of the brain where the centre for hunger and thirst is located is Hypothalamus.

Hence, option ‘B’ is the correct answer.

Note: The functional unit of the central nervous system is nerve cell or neuron. They are responsible for transmitting the signals to the other nerve cells, muscles, brain , glands and various body parts. Structure of neurons consist of three parts-

Cell body
Axon
Dendrite