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20-05-2021
Biology

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What happens when the level of thyroxin rises in the blood?
A. The pituitary gland releases thyroid-stimulating hormone.
B. The thyroid gland starts releasing more hormones.
C. The level of TSH in the blood falls.
D. two of the above
l

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umadevijanarthiran02 umadevijanarthiran02

22-05-2021

Answer:

A

If the level of thyroxine in the blood is high then the pituitary gland releases less TSH. Therefore, a low level of TSH means that your thyroid gland is overactive and is making too much thyroxine. Thyroxine (T4). A high level of T4 confirms hyperthyroidism

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