Question

) Draw a neat diagram of human brain and ii) Label Medulla and Cerebellum iii) Write the functions of the above mentioned parts b) ”Both overproduction and underproduction of Growth hormone leads to disorders in the body.” Explain

Answer 1

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Answer 2

i) Draw a neat diagram of of human brain.

➠ Refer the picture given above.

ii) Label Medulla and cerebellum.

➠ Refer the above given attachment.

iii)a) Write the functions of the above mentioned parts.

➠ Medulla -

• It relays nerve impulses between the spinal cord and the brain.
• Controls autonomic functions.
• Regulates mood.
• Coordinates movements of the body.
• It is the reflex centre for coughing, vomiting, sneezing, swallowing.
• It is the vasomotor center: baroreceptors.
• It is the cardiac centres: parasympathetic and sympathetic system.

➠ Cerebellum -

• It senses equilibrium.
• Transfers information.
• Coordinates eye movement.
• It enables precision control of the voluntary body movements.
• Predicts the future position of the body during a particular movement.
• Both anterior and posterior lobes are concerned with the skeletal movements.

iii)b) ”Both overproduction and underproduction of Growth hormone leads to disorders in the body.” Explain.

➠ Both overproduction and underproduction of growth hormone leads to disorders in the body. This hormone helps in muscle growth, repairing of tissues, healing etc. Overproduction of this hormone leads to a disorder known as gigantism while its underproduction leads to dwarfism.

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