BIOL 1410 Lecture Notes - Lecture 18: Sella Turcica, Anterior Pituitary, Pituitary Gland
15 Dec 2015
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Ductless glands and endocrine tissues [endocrine cells] within other organs. Secrete chemicals = hormones into blood: transported to target cells via circulation and act on target cells, target cell = cell with receptor specific for that hormone, hormone classes, steroids. Testosterone, estrogen, vitamin d: hormones derived from amino acids: [derived from a single amino acid] Lipid soluble [it can pass into cells] Controls cellular metabolism: epinephrine + norepinephrine (catecholamines) [aka adrenaline. Short term stress part of the fight-or-flight response: peptide + protein hormones. E. g. oxytocin, antidiuretic hormone (adh), growth hormone (gh), insulin: endocrine glands [12. 11][focus fig 16. 1] Glands with no other function: pituitary gland. Anterior pituitary hormone secretion regulated by hormones released by the hypothalamus. Promotes growth or metabolism: thyroid stimulating hormone (tsh) Stimulates secretion of thyroid iii. adrenocorticotropic hormone (acth) Reproductive hormones: luteinizing hormone (lh, follicle stimulating hormone, prolactin (prl) Hormones produced in hypothalamus, stored and secreted from the posterior pituitary: oxytocin.
