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John and Radha were classmates since childhood. When Radha became eleven years old, she developed a little swelling in her neck. She visited the doctor who started medication for - Science

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प्रश्न

John and Radha were classmates since childhood. When Radha became eleven years old, she developed a little swelling in her neck. She visited the doctor who started medication for her.
After a few years, John also developed a slight protrusion on his throat. He got worried and went to the doctor. But, the doctor assured him that it was a normal feature in boys while they are growing up. Can you think of any reasons for the difference in diagnoses?

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उत्तर

The swelling on the neck of Radha may have been because of goitre, a condition during which the thyroid gland produces insufficient quantity of thyroxine. However, the protrusion in John’s throat would be due to Adam’s apple (bulge) that is a result of growth of voice box in adolescent boys.

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अध्याय 10: Reaching the Age of Adolescence - Long Answer Questions [पृष्ठ ५८]

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एनसीईआरटी एक्झांप्लर Science [English] Class 8
अध्याय 10 Reaching the Age of Adolescence
Long Answer Questions | Q 24. | पृष्ठ ५८
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