Thyroxine

Thyroxine is an iodine-containing, thyroid hormone produced by the thyroid gland. Along with thyroxine, triiodothyronine is also produced in the thyroid gland. Thyroxine usually is converted into triiodothyronine by enzymes in target cells called deiodinases. Concentrations of thyroxine are usually greater in the body, but triiodothyronine is considered the major thyroid hormone. Thyroxine production is controlled by the pituitary gland. The hypothalamus will secrete thyrotropin-releasing hormones that stimulate the pituitary gland to secrete thyroid-stimulating hormone (TSH). TSH fuels the production of the thyroid hormones, thyroxine and triiodothyronine. 1 TSH will be triggered to release into the blood any time thyroxine levels are low.…

only definite way to diagnose this condition is through blood testing. Doctors use two blood tests to make a hypothyroidism diagnosis. The first test, the TSH (thyroid-stimulating hormone) test, measures the amount of thyroxine (T4) the thyroid gland is being signaled to make. Thyroxine, the thyroid hormone, influences digestion, muscle function, bone maintenance, and heart activity. The body regulates thyroxine through negative feedback. When T4 levels are too high, the body signals the…

Why am I having this test? The fractionated plasma-free metanephrines test is used to screen for a type of adrenal gland tumor called pheochromocytoma. You may have this test if you have symptoms of pheochromocytoma or a family history of this type of tumor. What is being tested? This test measures the amount of metanephrine and normetanephrine in your blood. Metanephrine and normetanephrine are substances that appear in your blood after adrenaline and other hormones break down. Increased levels…

the thyroid and causes changes in the body’s metabolism and energy. It causes depression and life altering effects to both the victim and their family. An important view is needed for a health psychologist to examine a patient with Hashimoto’s Thyroiditis to better understand the patient and how to effect proper treatment. It is also important to help them with adherence to treatment. The Theory of Planned Behavior is a great psychological perspective to understand Hashimoto’s because it helps…

Thyroxine is secreted into the bloodstream by the thyroid gland. It contains iodine and is a derivative of the amino acid tyrosine. The function of thyroxine is to control development, maturation and metabolism. Thyroid hormones are essential for physical and mental development. Tyrosine is the inactive form, and most of it is converted to an active formed called triiodothyronine. The production and release of thyroid hormones is controlled by a feedback loop system which involved the…

Are you struggling with a slow metabolism, fatigue, weight gain or trouble maintaining a healthy weight? Constipation, swinging moods or depression, dry skin, low energy levels, memory and concentration problems can also be symptoms of thyroid dysfunction. You can support your thyroid balance by visiting a doctor for tests, then under their supervision, treating it with natural supplements and lifestyle changes. What is the Thyroid? The thyroid is a small-butterfly shaped gland located in…

Bullfrog Dissection Background The American bullfrog, Lithobates catesbeianus, is an amphibian about the size of a teacup.(National Geographic, “American Bullfrog”). This dissection explored the anatomy of a bullfrog that had been pithed. Pithing is a technique used to prevent the frog from experiencing any cruel or unusual pain during the dissection. A pithed frog has had its nervous tissue in its brain severed thus allowing it to maintain normal bodily function during the dissection without…

INTRODUCTION Chronotherapy is the administration of drug or treatment according to the circadian rhythm of body that give maximum therapeutic effect and minimum adverse effects. Circadian rhythm control the biochemical process and functions of the body and environmental factors such as light, temperature, food intake can influence the circadian rhythm[1]. The pathological state of the disease condition have an observed rhythm for almost all diseases like asthma, cancer , hypertension etc. This…

THYROID GLAND:The thyroid gland, located inside the neck, takes iodine from foods and converts it into thyroid hormones. CIRCULATORY SYSTEM: ANTERIOR VENA CAVA: The anterior vena cava drains the body of blood cranially to the heart. POSTERIOR VENA CAVA: The posterior vena cava drains the body of blood caudal to the heart. JUGULAR VEIN: The jugular vein is a group of veins that drain the structures lying in the cranial cavity of blood, until they unite with the subclavian vein. CEPHALIC:Large…

The Medication Armour Thyroid is prescribed for treating an underactive thyroid. It is also used to treat or prevent certain types of goiters and to manage thyroid cancer. It may also be used for other conditions as determined by your doctor. Armour Thyroid is a thyroid hormone. It works by replacing thyroid hormone when your body does not make enough on its own. You should use Armour Thyroid as directed by your doctor. Different people have different dosages based on how much they need. The…