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Triiodothyronine, also known as T3, is a thyroid hormone. It affects almost every physiological process in the body, including growth and development, metabolism, body temperature, and heart rate.
The hypothalamus senses low circulating levels of thyroid hormone ( Triiodothyronine (T3) and Thyroxine (T4)) and responds by releasing thyrotropin-releasing hormone (TRH). The TRH stimulates the anterior pituitary to produce thyroid-stimulating hormone (TSH). The TSH, in turn, stimulates the thyroid to produce thyroid hormone until levels in the blood return to normal. Thyroid hormone exerts ...
Thyroid hormones are any hormones produced and released by the thyroid gland, namely triiodothyronine ( T3) and thyroxine ( T4 ). They are tyrosine -based hormones that are primarily responsible for regulation of metabolism. T 3 and T 4 are partially composed of iodine, derived from food. [2] A deficiency of iodine leads to decreased production ...
Thyroid follicular cells (also called thyroid epithelial cells or thyrocytes [1]) are the major cell type in the thyroid gland, and are responsible for the production and secretion of the thyroid hormones thyroxine (T 4) and triiodothyronine (T 3 ). They form the single layer of cuboidal epithelium that makes up the outer structure of the ...
total abdominal hysterectomy with bilateral salpingo-oophorectomy. TAP. trypsinogen activation peptide. TAPVR. total anomalous pulmonary venous return. TAT. thematic apperception test. TAVI. transcatheter aortic valve implantation.
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Reverse triiodothyronine (3,3′,5′-triiodothyronine, reverse T 3, or rT 3) is an isomer of triiodothyronine (3,5,3′ triiodothyronine, T 3 ). Reverse T 3 is the third-most common iodothyronine the thyroid gland releases into the bloodstream, at 0.9%; tetraiodothyronine (levothyroxine, T 4) constitutes 90% and T 3 is 9%.
The spinothalamic tract is a part of the anterolateral system or the ventrolateral system, a sensory pathway to the thalamus. From the ventral posterolateral nucleus in the thalamus, sensory information is relayed upward to the somatosensory cortex of the postcentral gyrus . The spinothalamic tract consists of two adjacent pathways: anterior ...