Thyroid gland

Outline Thyroid gland definition Thyroid gland structure Thyroid gland function Thyroid gland hormones Thyroid gland disorders References

Outline Thyroid gland definition Thyroid gland structure Thyroid gland function Thyroid gland hormones Thyroid gland disorders References

Thyroid gland definition The thyroid gland, or simply the thyroid, is an endocrine gland in the neck, consisting of two lobes connected by an isthmus. It is found at the front of the neck, below the Adam's apple. The thyroid gland secretes thyroid hormones, which primarily influence the metabolic rate and protein synthesis.

Outline Thyroid gland definition Thyroid gland structure Thyroid gland function Thyroid gland hormones Thyroid gland disorders References

Thyroid gland structure The thyroid is a highly vascular, brownish-red gland located anteriorly in the lower neck . The gland varies from an H to a U shape and is formed by 2 elongated lateral lobes with superior and inferior poles connected by a median isthmus, with an average height of 12-15 mm.

Thyroid gland structure

Outline Thyroid gland definition Thyroid gland structure Thyroid gland function Thyroid gland hormones Thyroid gland disorders References

Thyroid gland function The primary function of your thyroid gland is to secrete thyroid hormones. The thyroid hormones are involved in regulating many of your bodily functions, such as your breathing, heart rate, temperature, how quickly you burn calories, and digestion, among other functions.

Outline Thyroid gland definition Thyroid gland structure Thyroid gland function Thyroid gland hormones Thyroid gland disorders References

Thyroid gland hormones : The 2 main thyroid hormones are T3 (triiodothyronine) T4 (thyroxine). T3 and T4 regulate body's temperature, metabolism and heart rate.

T3 or triiodothyronine T3 tests can help diagnose an overactive thyroid (hyperthyroidism). The usual accepted normal range for free T3 (which measures T3 in the bloodstream, but not T3 bound to protein in your body) is between 3.1 pmol/L and 6.8 pmol/L

T4 (thyroxine) The normal range usually quoted for free thyroxine (T4) is 12-22 pmol/L. In people with hyperthyroidism (overactive thyroid), free T4 is usually above 22 pmol/L. And for those with hypothyroidism (underactive thyroid), free T4 is usually below 12 pmol/L.

Thyroid gland hormones

Outline Thyroid gland definition Thyroid gland structure Thyroid gland function Thyroid gland hormones Thyroid gland disorders References

Thyroid gland disorders There are specific kinds of thyroid disorders that includes: 1.Hypothyroidism 2.Hyperthyroidism 3.Thyroid cancer

1.Hypothyroidism Hypothyroidism refers to any state in which a person's thyroid hormone production is below normal. There are many disorders that result in hypothyroidism, for example, autoimmune disorders, thyroid removal, prescription medications, pituitary disease, and iodine deficiency. Hypothyroidism is a very common condition.

1.Hypothyroidism The symptoms of hypothyroidism include : Increased cholesterol levels Depression Fatigue Hair loss Memory loss Dry rough skin Constipation.

2.Hyperthyroidism Hyperthyroidism is a condition in which there is an excessive amount of thyroid hormones. Normally, the rate of thyroid hormone production is controlled by the brain from the pituitary gland, which is in turn regulated by the hypothalamus. Graves' disease, the most common cause of hyperthyroidism, can be associated with eye disease (Graves' opthalmopathy)

2.Hyperthyroidism Common symptoms of hyperthyroidism include: Restlessness Agitation Anxiety Tremors Weight loss  Sweating Rapid heart rate

3.Thyroid cancer Thyroid cancer is three times more common in women than in men. The cause of thyroid cancer is unknown, but certain risk factors have been identified and include a family history of goiter and exposure to high levels of radiation

3.Thyroid cancer The most common signs and symptoms of :thyroid cancer include A lump or thyroid nodule Trouble swallowing Throat or neck pain  Swollen lymph nodes in the neck  Cough and Vocal changes

Outline Thyroid gland definition Thyroid gland structure Thyroid gland function Thyroid gland hormones Thyroid gland disorders References

References www.presentationszone.com www.wikibedia.org www.medicinenet.com https://reference.medscape.com www.mydr.com.au