THYROID HORMONE CIRCULATION AND TRANSPORT
THYROID HORMONE CIRCULATION AND TRANSPORT Part of “CHAPTER 30 – THYROID PHYSIOLOGY: SYNTHESIS AND RELEASE, IODINE METABOLISM, BINDING AND TRANSPORT“ Approximately 120 nmol of T4, 47 nmol of T3, and…
THYROID HORMONE SYNTHESIS
THYROID HORMONE SYNTHESIS Part of “CHAPTER 30 – THYROID PHYSIOLOGY: SYNTHESIS AND RELEASE, IODINE METABOLISM, BINDING AND TRANSPORT“ The major synthetic steps regulated by TSH are transport of iodide, organification,…
IODINE METABOLISM
IODINE METABOLISM Part of “CHAPTER 30 – THYROID PHYSIOLOGY: SYNTHESIS AND RELEASE, IODINE METABOLISM, BINDING AND TRANSPORT“ Iodine is essential for the synthesis of thyroid hormones. With four iodines per…
THYROID PHYSIOLOGY: SYNTHESIS AND RELEASE, IODINE METABOLISM, BINDING AND TRANSPORT
THYROID PHYSIOLOGY: SYNTHESIS AND RELEASE, IODINE METABOLISM, BINDING AND TRANSPORT H. Lester Reed The thyroid hormones, L-3,5,3′,5′-tetraiodothyronine (L-thyroxine [T4]) and, to a much less extent, L-3,5,3′-triiodothyronine (L-triiodothyronine [T3]) are synthesized…
FINE-NEEDLE ASPIRATION
FINE-NEEDLE ASPIRATION Part of “CHAPTER 29 – MORPHOLOGY OF THE THYROID GLAND“ Fine-needle aspiration cytology of the thyroid has proven to be a safe and effective screening and diagnostic method…
IMMUNOHISTOCHEMISTRY OF THE THYROID
IMMUNOHISTOCHEMISTRY OF THE THYROID Part of “CHAPTER 29 – MORPHOLOGY OF THE THYROID GLAND“ Immunoperoxidase techniques have improved our understanding of the substances, especially hormones, that are contained in normal…
ELECTRON MICROSCOPY OF THE THYROID
ELECTRON MICROSCOPY OF THE THYROID Part of “CHAPTER 29 – MORPHOLOGY OF THE THYROID GLAND“ Ultrastructural studies of normal thyroid disclose that the follicular cells are arranged in a single…
GROSS ANATOMY OF THE THYROID
GROSS ANATOMY OF THE THYROID Part of “CHAPTER 29 – MORPHOLOGY OF THE THYROID GLAND“ The normal adult thyroid gland consists of two lobes connected by an isthmus. Thyroid tissue…
CLINICAL IMPLICATIONS OF THYROID EMBRYOLOGY
CLINICAL IMPLICATIONS OF THYROID EMBRYOLOGY Part of “CHAPTER 29 – MORPHOLOGY OF THE THYROID GLAND“ NONDESCENT AND MALDESCENT Abnormal migration of the median thyroid anlage may take the form of…
EMBRYOLOGY OF THE THYROID
EMBRYOLOGY OF THE THYROID Part of “CHAPTER 29 – MORPHOLOGY OF THE THYROID GLAND“ To understand and evaluate the morphologic and clinical aspects of thyroid disease, knowing the embryology, anatomy,…
