Congenital hypothyroidismHypothyroidismThyroid dysgenesis: Thyroid agenesis (or thyroid dysgenesis) is a cause of congenital hypothyroidism where the thyroid is missing, ectopic, or severely underdeveloped.Thyrotropic cellFollicular cellThyroid hormone: The thyroid hormones, triiodothyronine (T3) and its prohormone, thyroxine (T4), are tyrosine-based hormones produced by the thyroid gland that are primarily responsible for regulation of metabolism. T3 and T4 are partially composed of iodine (see molecular model).GoitreThyroglobulin: Thyroglobulin (Tg) is a 660 kDa, dimeric protein produced by the follicular cells of the thyroid and used entirely within the thyroid gland. Thyroglobulin protein accounts for approximately half of the protein content of the thyroid gland.Reverse triiodothyronineIodothyronine deiodinase: Iodothyronine deiodinases ( and ) are a subfamily of deiodinase enzymes important in the activation and deactivation of thyroid hormones. Thyroxine (T4), the precursor of 3,5,3’-triiodothyronine (T3) is transformed into T3 by deiodinase activity.Iodine deficiencyMunich Reinsurance America: Munich Reinsurance America (also called Munich Re America), formerly known as American Re Corporation before September 2006, is a major provider of property and casualty reinsurance in the United States. Munich Reinsurance America is a subsidiary of Munich Re.Sodium pertechnetateSoy milk: Soy milk, also referred to as soymilk or soya milk, is a plant milk produced byFontanelle: A fontanelle (or fontanel) (colloquially, soft spot) is an anatomical feature of the infant human skull comprising any of the soft membranous gaps (sutures) between the cranial bones that make up the calvaria of a fetus or an infant. Fontanelles allow for rapid stretching and deformation of the neurocranium as the brain expands faster than the surrounding bone can grow.Hyperphenylalaninemia: (also includes non-classic PKU)TriiodideMacroglossiaHyperthyroidismEvolution of human intelligence: The evolution of human intelligence refers to a set of theories that attempt to explain how human intelligence has evolved and are closely tied to the evolution of the human brain and to the origin of language.Ectopic testis