Flashcards in Endocrine System Deck (83)
""Master Gland"": Two parts (neurohypophysis, adenohypophysis)
Pituitary Gland location
Hangs from hypothalmus, protected by turcica
Posterior pituitary gland
Produces ADH and Oxytocin, releases when neural impulse from hypothalamus
Anterior pituitary gland
Produces GH, TSH, ACTH, prolactin, FSH, LH, and otherreleasing hormones.
""Vasopressin"", maintains BP by reabsorption of water by kidney tubules and vasoconstriction
Stimulates contraction of uterus and release of milk
Chemical substance secreted by a gland into the BLOODSTREAM that controls another gland or body system.
The formation of urine (not peeing), but once it goes to the bladder you can't get urine back.
Variations of thyrosine, include thyroxin, epi, and nor-epi
Chains of amino acids, insulin, groth hormone, and calcitonin
Made of cholesterol, cortisol, aoldosterone, estrogen, progesterone, and testosterone
Hormones work on this feedback mechanism
Negative feedback mechanism
What do endocrine glands respond to?
Blood level changes or other hormones present in the blood stream
Releasing hormones for anterior pituitary
Immune hormones, huge when we're born and gets smaller with age
Insulin and Glucagon
Estrogen, progesterone, and Inhibin
""Put it back in the blood stream""
PTH: parathyroid hormone can increase calcium in blood stream. They are found behind the thyroid, pea shaped and can have 3-6 other them.
Adrenal (suprarenal) Glands
Cortex: Aldosterone, cortisol, sex hormones Medulla: Epi and Nor-epi
Adrenocorticotropic Hormone (ACTH)
Increases secretion of cortisol by the adrenal glands
T3 and T4
Triiodothyronine and Thyroxin: Increase energy production and rate of protein synthesis
Growth Hormone: Increases mitosis, amino acid transport into cell, protein synthesis, and use of fats for energy
Thyroid Gland location
Front and sides of trachea, the two lobes are connected by isthmus (bridge across trachea)
Produces T3, T4, and calcitonin (regulates calcium in calcium when calcium level too high ""calcitone it down"")
Another name for a tumor
Hyperthyroidism: Abnormal thyroid stimulating mechanism, increased iodide uptake, thyroid metabolism, growth, and secretion of hormone