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What Role Does The Thyroid Play In The Body

What Role Does The Thyroid Play In The Bodys Endocrine System

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The thyroid gland produce thyroid hormones. Problems can result if it produces too much or too little. Low thyroid levels can leave you feeling extremely tired. Too much of this hormone in your bloodstream might cause your heart to beat fast and make you feel anxious.

Hormone fluctuations occur naturally during different life stagesfor instance, during puberty or menopause for womenbut they can also occur unnaturally due to exposure to toxins, chronic stress and/or infections. A healthy thyroid produces just enough hormones to regulate the bodys metabolism, which in turn dictates how much energy you create and use.

What Role Does The Thyroid Gland Play In The Human Body

The thyroid gland plays a major role in the human body’s everyday functions by secreting hormones that control metabolism, according to Harvard Medical School. Because the thyroid gland produces the substances that influence and regulate the body’s metabolism, it functions in a manner similar to the conductor of an orchestra. Metabolism determines the rate at which cells are produced, nutrients are absorbed and energy is used, which affects every organ and system in the body.

The pituitary gland monitors the levels of hormones in the bloodstream and sends an activation signal to the thyroid gland when levels of the hormones called T3 and T4 are low. These are the metabolism-regulating hormones produced by the thyroid gland, and when it receives the production signal from the pituitary gland, T3 and T4 are produced and secreted.

When the thyroid gland is unable to produce the called-for amounts of T3 and T4, which results in a slowing down of the body’s metabolism, the condition is referred to as hypothyroidism. Some of the symptoms resulting from hypothyroidism are either similar to those of clinical depression or they are capable of causing depression. There are clinicians who believe that some people who are taking anti-depressant medications should instead be examined and tested for hypothyroidism, as reported in the Harvard Medical School newsletter.

How Are Thyroid Disorders Diagnosed

Your doctor will perform a physical examination and take your medical history. If thyroid disease is suspected, your physician will order a blood test to measure thyroid-stimulating hormone to determine if you have low levels of TSH, which can be the first indication of a thyroid disorder. Another blood test measures a hormone called T4, also produced by the thyroid. A third blood test is called the anti-thyroid microsomal antibody test. This measures the amount of anti-thyroid peroxidase antibodies in the blood stream. Large amounts of antibodies, which are produced by the immune system, could indicate that some thyroid damage has already occurred.

If you have an abnormally high level of the hormone TSH, then you might have an under-active thyroid gland, a condition called hypothyroidism. Low levels of TSH is an indicator of hyperthyroidism.

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What Does The Thyroid Do: Hormones And Body Processes

What does the thyroid do involves an extensive amount of work in the body. The hormones produced by the thyroid control how the body uses food for energy. These hormones also help to improve the functions of other organs in the body. Thyroid hormones will affect a persons metabolism and how fast or slow the liver, brain, heart and muscles in the body work. If a persons body works too slow or fast, this can have a big impact on how well or bad they feel. As an example, if a person has a thyroid that doesnt produce enough hormones, they may experience poor circulation, weight gain and chronic fatigue. If the thyroid produces too much hormones, they may experience anxiety, weight loss, nervous energy and excessive sweating.

This gland is controlled by the bodys pituitary gland, which is located at the base of the brain. This gland will monitor the amount of thyroid hormones in the bloodstream and tell the thyroid to make less or more in order to ensure the body is getting just the right amount. The thyroid needs iodine in order to make hormones. Iodine comes from mainly dairy products and seafood, or iodized salt.

People with an overactive thyroid have a gland that produces too much thyroid hormone. Symptoms of an overactive thyroid include trouble concentrating, nervousness and irritability, trouble sleeping, weight loss, fast heart rate and excessive sweating. Medication will also be prescribed in order to maintain healthy thyroid hormone levels.

What Does The Thyroid Gland Do

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The thyroid gland produces hormones that regulate the body’s metabolic rate controlling heart, muscle and digestive function, brain development and bone maintenance. Its correct functioning depends on a good supply of iodine from the diet. Cells producing thyroid hormones are very specialised in extracting and absorbing iodine from the blood and incorporate it into the thyroid hormones.

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Disorders Of The Thyroid

Health concerns arise if your thyroid produces too much hormone or not enough hormone . Nearly 27 million people have thyroid conditions, and 13 million people are suspected to remain undiagnosed. Hyperthyroidism and hypothyroidism are diagnosed through a physical exam by your doctor and through blood tests. It’s important to see your doctor as soon as possible if you have concerns about your thyroid.

When You Dont Get Enough Of Thyroid Hormones

Hypothyroidism occurs when your thyroid does not release enough T3 and T4 thyroid hormones into your bloodstream. This causes your metabolism levels to drop and slow too greatly. Studies show that hypothyroidism is less common among African Americans, but those who are impacted face a greater risk of death than patients of other racial and ethnic groups. You may not even realize that you have a slowed metabolism until you begin to notice these signs and symptoms:

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Spotlight On Aging: Thyroid Gland Changes In Older People

Aging itself has only minor effects on the thyroid gland and thyroid hormones. As people get older, the thyroid gland shrinks and shifts lower in the neck. The level of the thyroid hormone triiodothyronine may fall slightly, but the speed of vital functions changes very little. However, thyroid disorders become more common with aging.

Disorders that affect thyroid function, particularly hyperthyroidism and hypothyroidism, can be thought of as great masqueraders in older people. These disorders often cause symptoms that are easily mistaken for symptoms of other conditions or even as signs of getting old.

Increased or decreased thyroid function can dramatically worsen the way an older person feels and can greatly diminish the ability to carry out daily activities. For these reasons, the great masqueraders must be unmasked and recognized for what they are so that they can be effectively treated.

Screening older people for hyperthyroidism and hypothyroidism is helpful. Some experts recommend measuring the level of thyroid-stimulating hormone in the blood in people over 65 every 5 years.

What Is The Thyroid Gland

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This important gland is a butterfly-shaped organ, located roughly in the middle of your neck, that produces the following hormones as part of your bodys pituitary system:

  • Thyroxine
  • Triiodothyronine
  • Calcitonin

When most people think of thyroid hormones, they consider T3 and T4. These hormones significantly impact weight because they affect metabolism and energy regulation. When they are created, they are released by your thyroid gland and then circulated into your bloodstream acting on almost every cell in your body to increase activity and metabolism.

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Pregnant And Breastfeeding Women

The American Thyroid Association recommends that all pregnant and breastfeeding women in the United States and Canada take a prenatal vitamin containing 150 mcg of iodine a day as part of an overall recommended intake of 220 mcg/day and 290 mg/day, respectively. Excess iodine, however, can be particularly dangerous in these women.

Calcitonin: The Thyroid Hormone For Calcium Regulation

Responsible for the metabolism of calcium and phosphorous, calcitonin is produced mostly in the C-cells or the parafollicular cells of the thyroid gland.

Calcitonin is widely known to lower the levels of calcium in the blood. It does so by stopping osteoclast activity in the bone.

This then inhibits the release of calcium and phosphorous in the body.

It also works on the kidney by preventing the reabsorption of these two minerals in the kidney tubules, and instead excretes them into the urine.

Because of calcitonins action on the body, secretion of this hormone is usually brought about by increased levels of calcium in the body.

Likewise, calcitonin secretion is halted if there is a drop-in calcium levels in the body.

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Which Hormones Does My Thyroid Gland Produce

The thyroid gland produces thyroxine , which is a relatively inactive prohormone. The highly active hormone is triiodothyronine . Collectively, thyroxine and triiodothyronine are referred to as the thyroid hormones. The thyroid gland produces just 20% of the high active T3, but it produces 80% of the prohormone T4. Once secreted by the thyroid, specific enzymes in other tissues like the liver or kidneys may transform T4 in to the active hormone T3.

In addition, there are other hormone-producing cells within the thyroid gland called C-cells. These cells produce calcitonin. Calcitonin plays a role in regulating calcium and phosphate levels in the blood, which is important for your bone health and maintenance.

In The Body What Is The Role Of Thyroxine

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Thyroxine is one of the main hormones secreted from the thyroid follicular cells. Within the body, thyroxine affects the bodys metabolism and has an effect on protein synthesis. It is also important for human growth and development, as it regulates bone growth and aids in the maturation of neurons. This hormone also increases the catecholamine effect, the bodys sensitivity to adrenaline. There are health issues linked to low and high levels of this hormone in the body.

Thyroxine is also known as T4, as the molecular structure consists of thyronine molecule with four iodine molecules. Synthesis occurs in the thyroid gland. The hormone is released into the blood through the thyroid follicular cells. Approximately 80 percent of all T4 is produced in the follicular cells.

In the body, T4 is transported to cells via the blood. Only free or unbound hormones are passed into cells and considered active. Up to 99 percent of thyroxine is actually bound to proteins in the blood. An individuals concentration of free T4 in the blood is extremely important in medical investigation and diagnosis.

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Checking For Potential Problems

If you struggle with overweight and/or obesity, its no guarantee that issues with your thyroid are at play. However, theres enough research evidence to support the advice that you should talk to your healthcare provider about the potential for underlying problems.

Your provider will either examine your most recent lab work or ask you to retake your annual labs so he or she can examine the results. Your labs will reveal your levels of TSH, T3, T4, thyroid antibodies and more that are in your bloodstream.

Once your provider assesses these results, he or she will determine if you have a potential thyroid disorder that may be affecting your weight. You might even be referred to an endocrinologists for further testing and treatment options.

For more information about thyroid disorders and weight management, .

Thyroid Hormone Production And Regulation

The thyroid gland produces the hormonesthyroxine, triiodothyronine, and calcitonin. Thyroid hormones thyroxine and triiodothyronine are produced by thyroid folliclar cells. Thyroid cells absorb iodine from certain foods and combine the iodine with tyrosine, an amino acid, to make thyroxine and triiodothyronine . The hormone T4 has four atoms of iodine, while T3 has three atoms of iodine. T4 and T3 regulate metabolism, growth, heart rate, body temperature, and affect protein synthesis. The hormone calcitonin is produced by thyroid parafollicular cells. Calcitonin helps to regulate calcium concentrations by lowering blood calcium levels when the levels are high.

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Is There A Higher Risk Of Developing Thyroid Disease If I Have Diabetes

If you have diabetes, youre at a higher risk of developing a thyroid disease than people without diabetes. Type 1 diabetes is an autoimmune disorder. If you already have one autoimmune disorder, you are more likely to develop another one.

For people with type 2 diabetes, the risk is lower, but still there. If you have type 2 diabetes, youre more likely to develop a thyroid disease later in life.

Regular testing is recommended to check for thyroid issues. Those with type 1 diabetes may be tested more often immediately after diagnosis and then every year or so than people with type 2 diabetes. There isnt a regular schedule for testing if you have type 2 diabetes, however your healthcare provider may suggest a schedule for testing over time.

If you have diabetes and get a positive thyroid test, there are a few things to you can do to help feel the best possible. These tips include:

  • Getting enough sleep.
  • Taking all of your medications as directed.
  • Getting tested regularly as directed by your healthcare provider.

Thyroid: Your Bodys Engine

What is the function of the thyroid, and what role does it play in a person’s health?

Thethyroid gland plays a vital role in metabolism, growth, and development throughout your life. It produces a steady amount of hormones your body needs for a wide variety of functions. As a key player in metabolism, the thyroid is like the engine of a car. It controls how your body uses energy and produces hormones on an as-needed basis.

Two key hormones, T4 and T3 tell your cells how much energy to use. The thyroid creates and releases these hormones into the bloodstream for use throughout the body. When your thyroid works properly, it produces enough hormones to keep your metabolism in balance.

As your body uses thyroid hormones for various functions, the thyroid gland produces and releases more to continue to meet the demand. Body cells are very sensitive to thyroid hormones.

The pituitary gland tightly regulates the production and release of hormones by continuously sensing the levels of thyroid hormone in the blood. Through a feedback system, the pituitary gland signals the thyroid to produce more hormones when levels in the blood decline.

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Weight Gain And Your Thyroid

Believe it or not, thyroid disease is very common with an estimated 27 million Americans affected, according to the American Association of Clinical Endocrinologists.

Though this gland can impact weight in many different ways, well focus on problems with weight gain and weight-loss difficulty for the purpose of this blog post.

Hormones T3 and T4 are strongly associated with weight gain and difficulty losing weight because they control cellular metabolism. If youre affected by a slow-functioning thyroid, there isnt enough of these hormones in your bloodstream and your metabolism slows down. This issue is generally referred to as an under-active thyroid or hypothyroidism.

How Does The Thyroid Work

The main job of the thyroid gland is to produce hormones T4 and T3. To do this the thyroid gland has to take a form of iodine from the bloodstream into the thyroid gland itself. This substance then undergoes a number of different chemical reactions which result in the production of T3 and T4.

The activity of the thyroid is controlled by hormones produced by two parts of the brain – the hypothalamus and the pituitary gland. The hypothalamus receives input from the body about the state of many different bodily functions. When the hypothalamus senses that levels of T3 and T4 are low, or that the body’s metabolic rate is low, it releases a hormone called thyrotropin-releasing hormone . TRH travels to the pituitary gland via the connecting blood vessels. TRH stimulates the pituitary gland to release thyroid-stimulating hormone .

TSH is released from the pituitary gland into the bloodstream and travels to the thyroid gland. Here, TSH causes cells within the thyroid gland to make more T3 and T4. T3 and T4 are then released into the bloodstream where they increase metabolic activity in the body’s cells. High levels of T3 stop the hypothalamus and pituitary gland from secreting more of their hormones. In turn this stops the thyroid gland producing T3 and T4. This system ensures that T3 and T4 should only be made when their levels are too low.

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Causes Of High Bicarbonate Levels

Equally, increased bicarbonate due to a gain or loss of acid in the body can make you feel unwell.

Ongoing vomiting which results in a loss of acid within the body can be a cause of increased bicarbonate and can lead to dehydration.

Because of the overall cause of an increase or decrease in your bicarbonate levels, you may also have a lack of energy, feel tired or experience a change in your mood.

Overview Of The Thyroid Gland

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The thyroid is a small gland, measuring about 2 inches across, that lies just under the skin below the Adams apple in the neck. The two halves of the gland are connected in the middle , giving the thyroid gland the shape of a bow tie. Normally, the thyroid gland cannot be seen and can barely be felt. If it becomes enlarged, doctors can feel it easily, and a prominent bulge may appear below or to the sides of the Adams apple.

The thyroid gland secretes thyroid hormones, which control the speed at which the bodys chemical functions proceed . Thyroid hormones influence the metabolic rate in two ways:

    Thyroid hormones affect many vital body functions, such as the heart rate, the rate at which calories are burned, skin maintenance, growth, heat production, fertility, and digestion.

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