1. The mineral needed for the production of thyroxin is
2. Thyroxin is secreted from the:
3. A person who secretes too little thyroxin has
4. Too little thyroxin in the blood causes negative feedback and …
5. A person with hyperthyroidism loses weight, is restless and anxious because:
6. A person with goitre has an enlarged:
1. Iodine
2. Thyroid gland
3. Hypothyroidism
4. Results in increased production of thyroid-stimulating hormone (TSH) from the pituitary gland
5. The increased metabolic rate caused by excess thyroxin
6. Thyroid gland