Hypothyroidism

M. Limon
October 28, 2010
Bio 1406
Prof. xxxxx
Hypo thyroid secreterism

Definition
Hypothyroidism is a condition that includes the thyroid gland. In this situation, the thyroid is hypoactive and fails to produce and release the accurate amounts of the thyroid hormone know as liothyronine (T-4). This disease causes the metabolic functions to slow tear (Litin, 2009). According to the Ameri give the sack Thyroid Association, thyroid diseases affect much than 13 million Ameri outhouses. Hypothyroidism is the most common form of thyroid disease. A thyroid that is not functioning properly can lead to a series of health problems and adversity can wreak havoc on almost all tissues and variety meat of the body (Miller, 2004).
Etiology
Hypothyroidism is a result of two classifications; either deport at birth or acquired. Because thyroid function is controlled by the hypothalamus and pituitary, other origins of functional deficiency can be classified into four subtypes: primary (thyroprivic), secondary (pituitary), tertiary (hypothalamic), or circumferential (generalized) (Amino, 1994). The thyroid gland may be destroyed by an autoimmune disorder, in which the immune system attacks its own gland.



The failure of the pituitary gland to produce thyroid-stimulating hormone signals the thyroid gland to produce thyroxine (T-4), thus, the thyroid-stimulating hormone (TSH) levels are elevated and thyroxine levels are usually low. The etiology for hypothyroidism in infancy, also know as cretinism, is deficiency of the thyroid hormone during fetal or early neonatal (first four weeks) life. It can also be caused by deprivation of maternal iodine or inherit thyroid abnormalities. One in every four-thousand births is a cretinism occurrence in the United States and is more often in females. On the other hand, the common cause of hypothyroidism in adults is deterioration of the thyroid gland, or, when pituitary thyroid-stimulating hormone production is inadequate (Haas, 2000). The physiological and metabolic...If you essential to get a full essay, order it on our website: Orderessay



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