Question

which type of goitre is common in persons living on mountains

Answer 1

The answer is Simple Goitre.

Explanation:

• Simple Goitre is caused due to the deficiency of Iodine in the diet.
• Iodine is required for the production of  the T3 (triiodothyronine) and T4 (tetraiodothyronine). T4 is also known as thyroxine.
• T3 and T4 are hormones.
• Thyroid glands are responsible for producing them.
• In the absence of iodine neither T3 nor T4 can be produced.
• Thyroid hormones are responsible for maintaining metabolism in the body.
• In absence of the production of the hormone, there can be weight gain, hair loss, etc.
• Simple Goitre should be distinguished from Exopthalmic Goitre which is caused due to autoimmune disease in the thyroid gland.

Answer 2

Endemic goiter is common in mountain regions

Explanation:

Mountain regions are far away from sea and soil does't contain iodine which causes endemic goiter disease,a condition due to deficiency of iodine causes enlarge thyroid gland.

Goiter produces Thyroid hormone.

Excess release of Thyroid hormone causes Hyperthyroidism and release of low level of thyroid hormone causes Hypothyroidism.