An under-active thyroid can cause the skin to dry out, which often results in itching, especially in the winter or cold seasons. Learn about using moisturizing cream to counteract itching that’s associated with an under-active thyroid with help from a physician in this free video on thyroid problems. Expert: David Cathcart Bio: Dr. David Cathcart has been a physician at Heartland Regional Medical Center in St. Joseph, Mo. for over 20 years. He operates the occupational medicine clinic. Filmmaker: Johnny Cathcart
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THYROID GLAND, endocrine gland that is situated in the throat below the larynx (voice box); the thyroid secretes hormones vital to metabolism and growth. The gland consists of two oblong lobes lying on either side of the trachea (windpipe) and connected by a narrow band of tissue; in normal adults the thyroid gland weighs 10 to 15 grams (0.4 to 0.5 ounce). The lobes of the gland, as well as the band, consist of numerous tiny sacks called follicles. The shell of each follicle consists of a single layer of cells wrapped in a thin membrane, and each follicle is surrounded by many blood capillaries. The space inside the follicle is filled with a viscous fluid called colloid, which contains mostly thyroglobulin, the storage form of thyroid hormone. There are actually two thyroid hormones, thyroxine (T4, or tetraiodothyronine) and triiodothyronine (T3). Their structure is identical, except that thyroxine has four iodine atoms and triiodothyronine has three. Under normal conditions, the thyroid produces more thyroxine than triiodothyronine. The raw materials needed to form thyroid hormone are iodine and the amino acid tyrosine, both of which are normally found in a persons diet. The iodine is actively taken up from the plasma by thyroid cells, in which it is incorporated into tyrosine molecules within molecules of thyroglobulin. The two hormones are formed by condensation of two iodinated tyrosine molecules within the thyroglobulin, and the thyroglobulin and incorporated thyroid …
Skin symptoms that are associated with thyroid disease are usually a result of an under-active thyroid, and such symptoms are typically skin that tends to get dry and flaky, as well as various rashes. Discover how an overactive thyroid can created moist and oily skin with help from a physician in this free video on thyroid disease. Expert: David Cathcart Bio: Dr. David Cathcart has been a physician at Heartland Regional Medical Center in St. Joseph, Mo. for over 20 years. He operates the occupational medicine clinic. Filmmaker: Johnny Cathcart
Thyroid disease can affect the body’s metabolism, growth, weight, temperature and energy level.
Anyone know where their thyroid is located? Your thyroid is a butterfly-shaped gland located at the base of your neck, just below your Adam’s apple. Although it weighs less than an ounce, the thyroid gland has an enormous impact on your health. Every aspect of your metabolism, from your heart rate to how quickly you burn calories, is regulated by thyroid hormones. You cannot live without your thyroid gland or the thyroid hormone, thyroxin. Learn about the different causes, symptoms, and treatments for overactive thyroid in this health video.
Do you have an underactive thyroid? Here are some tips for adjusting your diet. Learn how to adjust your diet to fit your specific health and nutrition needs in this video on grocery shopping.
Dr. Shelby Holt of UT Southwestern Medical Center at Dallas treats many disorders of the parathyroid and thyroid glands, two organs vital to normal body function. During surgery on patient Rhela Ball, the surgical team was able to immediately test blood hormone levels for immediate feedback on the successful operation.
The Thyroid Gland The thyroid gland, situated at the front of the neck and overlying the trachea, consists of two lateral lobes and a connecting isthmus. Thyroid tissues trap iodine circulating in the blood and use it to produce the hormones thyroxine and triiodothyronine. When secreted into the bloodstream, these hormones increase the metabolic rate of all body tissues. The thyroid gland also produces the hormone calcitonin, which helps regulate the calcium content of bones.
Physical symptoms that arise due to hypothyroidism usually include weight gain, dry hair, constipation, overwhelming fatigue and dry skin. Learn about hypothyroidism as a result of a thyroid that has stopped functioning with help from a physician in this free video on hypothyroidism. Expert: David Cathcart Bio: Dr. David Cathcart has been a physician at Heartland Regional Medical Center in St. Joseph, Mo. for over 20 years. He operates the occupational medicine clinic. Filmmaker: Johnny Cathcart
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