A deficiency in the element Iodine in the diet.
Yes, a palpable goiter is a physical sign of an enlarged thyroid gland and is often felt in the neck. Factors such as iodine deficiency, thyroid nodules, or autoimmune conditions like Hashimoto's thyroiditis can cause the thyroid gland to become enlarged and palpable.
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Decreases body mass and it would stimulate metabolism...
It is a hormone called T4, or thyroxin. What would normally happen is that Thyroid Stimulating Hormone (TSH) from the anterior pituitary would stimulate the thyroid to release T4. When enough T4 is produced, it inhibits TSH, or thyroid stimulating hormone, from being secreted. However if enough T4 is not released to inhibit TSH (probably due to an iodine deficiency), then TSH keeps on secreting, overstimulating the thyroid and causing the swelling known as goiter.
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A) Inherited lactase deficiency B) Medicines C) Prolonged diarrhea D) Milk allergy The answer is D) Milk allergy
Hyperthyroidism affects the endocrine system, particularly the thyroid gland. It results in an overproduction of thyroid hormones, which can lead to symptoms such as weight loss, rapid heartbeat, and anxiety.
The pituitary gland is known as the *master gland* and controls the function of all other glands. If the pituitary is dysfunctional, it may adversely affect thyroid function as well.
Hormonal birth control can affect the level of thyroid binding globulins. That doesn't affect most of the thyroid levels that your health care provider would check, but your provider should be aware of the type of birth control you're using just in case they decide to test these levels. Hormonal birth control does not affect the level of T4, T3, or TSH, the typical levels that are checked.
A complete answer to this question would be extensive. Briefly, iodine deficiency causes improper function of the thyroid gland, which in turn causes several other medical and health issues/problems, both in humans and higher animals. Prominent among these problems are hyperthyroidism, mental retardation, goiter and birth defects.
The levels of T3 and T4 would be lower than normal because there is deficiency of iodine, which is needed to produce these two hormones.
Thyroid hormones levels decrease, TRH levels increase, and PRL levels increase.