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Trophic hormones can be found in body systems including the endocrine, gastrointestinal, urinary, and nervous systems. The term trophic is from Ancient Greek τροφικός ( trophikós ) meaning "pertaining to food or nourishment", here used to mean "growth"; this is the same origin as atrophy .
Tropic hormones are hormones that have other endocrine glands as their target. Most tropic hormones are produced and secreted by the anterior pituitary. [1]: 719 The hypothalamus secretes tropic hormones that target the anterior pituitary, and the thyroid gland secretes thyroxine, which targets the hypothalamus and therefore can be considered a tropic hormone.
The hypothalamus controls the anterior pituitary's hormone secretion by sending releasing factors, called tropic hormones, down the hypothalamo-hypophysial portal system. [3] For example, thyrotropin-releasing hormone released by the hypothalamus in to the portal system stimulates the secretion of thyroid-stimulating hormone by the anterior ...
The principal examples are hypothalamic-pituitary hormones that can be classified from several viewpoints: they are hypothalamic hormones (originating in the hypothalamus), they are hypophysiotropic hormones (affecting the hypophysis, that is, the pituitary gland), and they are tropic hormones (having other endocrine glands as their target).
For example, if ACTH (Adrenocorticotropin hormone; a tropic hormone) is inhibited, cortisol can no longer be released because the chain reaction has been interrupted. [2] Some examples of non-tropic hormones are: Glucocorticoids: secreted from the adrenal glands and released directly into the blood stream where it alters blood glucose levels ...
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A person then dips skewered fruit into the mixture, encasing it in the sugar. Once it dries, it creates a glass-like coating. While tanghulu was popular this year, doctors warned that hot sugar ...
Hormones can be amino acid complexes, steroids, eicosanoids, leukotrienes, or prostaglandins. [3] The endocrine system is contrasted both to exocrine glands, which secrete hormones to the outside of the body, and to the system known as paracrine signalling between cells over a relatively short distance.