The thyroid gland is the gland that makes and stores hormones that help regulate the heart rate, blood pressure, body temperature, and metabolism. Thyroid hormones are essential for the function of every cell in the body. They help regulate growth and the rate of chemical reactions in the body. Thyroid hormones also help children grow and develop. The thyroid gland is located in the lower part of the neck, below the Adam's apple, wrapped around the trachea. It has the shape of a butterfly with two lobes attached to one another by a middle part called the isthmus. The thyroid uses iodine, a mineral found in some foods and in iodized salt, to make its hormones. The two most important thyroid hormones are thyroxine (T4) and triiodothyronine (T3). The thyroid gland also makes the hormone calcitonin, which is involved in calcium metabolism and stimulating bone cells to add calcium to bone.
Thyroid caner is a disease in which the cells of the thyroid gland become abnormal, grow uncontrollably and form a mass of cells called a tumor. Some tumors grow and enlarge only at the site where they began. These types of tumors are referred to as benign tumors. Other tumors not only enlarge locally, but they also have the potential to invade and destroy the normal tissues around them and to spread to other regions of the body. These types of tumors are called malignant tumors or cancer.() Malignant tumors of the thyroid gland tend to develop gradually and remain localized. The tumors usually appear as nodules or lumps of tissue growing on or inside the gland itself. Almost 95% of these lumps or nodules are non-cancerous (benign), and are usually caused by thyroid conditions such as goiters (Shin 422). The American Cancer Society estimates that there will be about 23,600 new cases of thyroid cancer in the U.S. in 2004 (Thackery 1057). Women are three times more likely to develop thyroid cancer than men. Although the disease also affects younger people, most people who develop thyroid cancer are over 50 years of age. Caucasians are affected more often than African-Americans (Rubin 88).
There are four main types of thyroid cancers: papillary, follicular, medullary, and anaplastic. These tumors are identified by the type of cells seen under the microscope. Papillary thyroid tumors occur most often. This type of thyroid cancer develops on one or b...
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... people with thyroid cancer have no known risk factors. Therefore it may not be possible to prevent it. However, inherited cases of medullary thyroid cancer can be prevented if radiation to the neck is avoided (Longe 3308). If a family member has had the disease, the rest of the family can be testes and treated early. The National Cancer Institute recommends an examination for anyone who has received radiation to the head and neck area during childhood at intervals of one or two years. It is also recommended that the neck and the thyroid should be carefully examined for any lumps or enlargement of the nearby lymph nodes.
Work Cited
Longe, Jacqueline L. “Thyroid Cancer.” The Gale Encyclopedia of Medicine. 2nd ed. 2001.
Rubin, Alan L. Thyroid for Dummies. New York, NY: Hungry Minds, 2001.
Shin, Linda M. Endocrine and Metabolic Disorders Sourcebook. Detroit, MI:
Omnigraphics, 1998
Surks, Martin I. The Thyroid Book. Yonkers, NY: Consumer Reports Books, 1993
Thackery, Ellen. “Thyroid Cancer.”
The thyroid gland is located in the anterior, middle portion of the neck. Many of the bodies’ hormones come from the thyroid. According to Porth 2011, “the thyroid hormone increases the metabolism and protein synthesis in nearly all of the tissues of the body.” (p. 784). When these hormones are not regulated, a thyroid disorder develops such as hypothyroidism and hyperthyroidism.
Thyroid and metabolism hormones play a large role in the daily lives of all living species. Thyroid hormones regulate the metabolism and the metabolism is responsible for maintaining a specific range for the biochemical reactions that occur in the body (Martini 2014). The most important hormone for metabolic maintenance is thyroxine (T4). This hormone also plays a large role in body heat regulation. It is produced by the pituitary gland and secreted by the thyroid gland. The thyroid releasing hormone (TRH) must trigger the thyroid stimulating hormones (TSH) to release thyroid hormones to the thyroid gland. These hormones are under control of the hypothalamus, or main neural control center. Propylthiouracil (PTU) is a medication used to treat
There are multiple factors that contribute to her risk of thyroid cancer. One example is support. Her parents are very supportive to her and are very involved in her treatments and wanting
The reasons why are unclear, but there is a sharp distinction between male and female thyroid cancer rates - females tend to develop the cancer more by nearly three times as often (“What Are the Risk Factors for Thyroid...
The hormones produced from the endocrine system come from a wide range of different places. Among those responsible for hormone production are the glands and a few organs as well. The glands that are involved are the pituitary, thyroid, thymus, parathyroid, and adrenal. The organs, which also play a vital part, are the pancreas, gonads, kidneys, heart, and parts of the digestive tract. All these different glands or organs work together in the production of certain hormones. Those produced in one location will almost always have an effect on many other areas of the body, not just the surrounding tissues.
In healthy an individual, the thyroid gland produces thyroid hormones T3 and T4 through a series of steps. Iodide is carry into the thyroid follicular cell from the blood stream by symporters. The iodide is transported into the cell against it concentration gradient, using Na+ concentration gradient as an energy source. The iodide in the follicular cell is activated through oxidation by thyroperoxidase (TPO). The active iodide is passively transported into the colloid through an iodide channel on the luminal side of the follicular cell down its concentration gradient. Thyroglobulin (Tg) another precursor of thyroid hormone enters the colloid via exocytosis from the Golgi complex of the follicular cell. The Thyroglobulin (Tg) binds to iodide with the help of thyroperoxidase forming monoiodotyrosine (MIT). If another iodide is added to the tyrosine reside of Tg, di-iodotyrosine is formed (DIT...
The thyroid gland makes hormones that control the way every cell in the body uses energy. It is located in your neck and is the factory that makes the thyroid hormone T3 (Porth, 2011). It’s job is to wait for orders from the administrators of the body, the brain, to tell the thyroid how much T3 to release for the energy the body needs
The thyroid organ, though small, impacts every cell in the body by providing metabolism regulation (endocrine web). This butterfly-shaped, endocrine organ located at the neck, secretes hormones to control the body’s metabolism - or the way the body uses energy that help the body with energy, manage heat, and help organs such as the heart and brain function properly (thyroid.org). When not functioning properly, thyroid dysfunctions occur disrupting the three points of control: the hypothalamus in the brain, the pituitary gland, and the thyroid gland. Common thyroid disorders include Hashimoto’s, Graves’ disease, thyroid disorders like hypothyroidism and hyperthyroidism, and nodules or goiters (health line).
This is because the tissue swells around the eyes and suffer from hyperthyroidism, muscular weakness, and rapid pulse and develop a reddish, painless skin rash. People who show signs and symptoms usually are either mild or severe. It all depends on the activity level of the thyroid. The disease affects the immune system itself and no other places. Symptoms usually develop over a 3-month period. The carrier usually is not aware that they have Graves’ disease. They usually find out when the symptoms are severe. The common signs are weight loss, tremors, feeling of being hot, and palpitations. (www.ncbi.nlm.nih.org). The less common sign that can occur as well. They are over activity of the intestines, which leads to frequent bowl movements. Sometimes the breakdown of protein in muscles can lead to extreme weakness, which causes trouble breathing and limited endurance. (The Thyroid Book). The thought of having Graves’ disease can be disturbing. Mood swings and thinking impairment can be difficult to handle. Crying spells, depression and feeling down are common. The patient’s personality can be different and will change. This could make work difficult and hard to keep. Generally, a person with Graves’ disease will have a thyroid that is enlarged but will not have any pain from it. This is called a goiter and can be seen in the neck most of the time. Sometime you cannot see the goiter but by feeling and examining the neck, it can be detected.
...r to tackle. This type of cancer has the ability to spread quickly and the farther that it hits, the harder it can be overcome if at all.” This form of thyroid cancer often occurs in the inherited genetic disorder multiple endocrine neoplasia” (Thyroid Cancer 2). People who have inherited multiple endocrine neoplasia will most likely have medullary thyroid cancer, but it is rarely contracted without this disorder. Next, anaplastic thyroid cancer is the most fatal of all four subtypes. This types of cancer grows quickly and metastasizes to other parts of the body rapidly. “Anaplastic thyroid cancer is more likely to develop in men over the age of 70” (Thyroid Cancer).
Hashimoto thyroiditis, also known as chronic lymphocytic thyroiditis or autoimmune thyroiditis is an autoimmune disease (An illness that occurs when the body tissues are attacked by its own immune system) that attacks the thyroid gland causing inflammation and interfering with its ability to produce thyroid hormones. Hashimoto thyroiditis is known to be the most common form of thyroiditis and also the most common thyroid disorder in America. According to Womenshealth.gov (May 18, 2010) Hashimoto’s has been known to affect women seven times more than men. Patients who have been diagnosed with Hashimoto’s disease often have family members who have thyroid or other autoimmune diseases.
Tumors and growths of all kinds can form in the thyroid gland. Thyroid tumors are usually benign, which is not cancerous; but doesn’t mean that they can’t be malignant, which are cancerous and spread quickly into nearby tissues and other glandular areas of the body. Thyroid cancer can happen to anyone at any age. According to the Essentials of Human Diseases and Conditions textbook; “The four main types of thyroid cancer are papillary (small nipple-like projections), follicular (saclike balls of cells), medullary (affecting the interior portion of the gland, and anaplastic (loss of differentiations of cells).” (Schell Frazier & Drzymkowski Wist, 2013)
In experienced hands parathyroidectomy, the success rate range between 95- 98%. Normalizes serum calcium and PTH, reduces the risk of fracture in those with symptomatic and asymptomatic disease, may provide minor improvements in neurocognitive dysfunction in those with mild PHPT, reduces the incidence of renal stones, and regress the septal hypertrophy.
The thyroid gland is part of the endocrine system, and it is controlled by the pituitary which is known as the “master gland” of the endocrine system. The pituitary controls the thyroid by producing Thyroid Stimulating Hormone (TSH) which stimulates the production of thyroid hormones. . The thyroid gland secretes two main hormones: Thyroxine (T4) and Tri-Iodothyronine (T3). These hormones increase metabolic rate, heat production, oxygen consumption, appetite, growth hormone secretion, alertness and quicker reflexes. The thyroid gland is located in the anterior portion of the neck, beneath the Adam’s apple. It is divided in two lobes on either side of the windpipe: right lobe and left lobe. These lobes create what looks like a butterfly shape. The gland is essential to the contribution of maintaining the homeostasis of the body. It plays a role in monitoring the body’s expenditure of energy and running the body’s metabolism.
...culatory system. Pituitary gland is a growth hormone that helps in mertabolism and develops reproductive organs. The thyroid controls metabolsim on the rate that the body breaks down food. Adrenal gland secretes many hormones including adrenaline which prepares the body to react in a stressful situation. The pancreas produces digestive enzymes and insulin. Ovaries produce ova and estrogen. Testes produce sperm cells and testosterone. To stay healthy you should get a regular medical check-up, eat a well-balanced diet, sleep at least 8 hours, and decrease stress in your life. Some problems are growth disorders, diabetes, and obesity. Puberty begins at different times for girls then boys. Girls start around ages 9-13 and boys are ages 10-15.