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Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/deficiency symptom:

1. Posterior pituitary - Growth Hormone (GH) - Oversecretion stimulates abnormal growth
2. Thyroid gland - Thyroxine - Lack of iodine in diet results in goitre
3. Corpus luteum - Testosterone - Stimulates spermatogenesis
4. Anterior pituitary - Oxytocin - Stimulates contraction of uterus during child birth

Correct answer: Thyroid gland - Thyroxine - Lack of iodine in diet results in goitre

Solution

The thyroid gland secretes thyroxine, and iodine is required to make it. When iodine is deficient, the thyroid enlarges to compensate, causing goitre.

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