BIOL 1050 Lecture Notes - Lecture 6: Allostasis, Sympathetic Nervous System, Posterior Pituitary
6 Dec 2016
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Document Summary
Major endocrine organs related to the stress response. Uses pituitary gland to relay directions (hormones) to other glands: posterior pituitary composed of nervous tissue. Extension of hypothalamus: anterior pituitary composed of endocrine cells. Acts as a storage for hormones produced in the hypothalamus. Then releases them into the blood stream. Oxytocin : during parturition (birth) and lactation. It produces and releases six hormones in total: growth hormone, prolactin, acth, tsh, fsh (follicle stimulating hormone, lh. It is essentially two endocrine organs: cortex (glandular, medulla (neural) Medulla is central and is surrounded by the cortex. Consists of three layers of cells (from outermost towards the center: mineralocorticoid-secreting area, glucocorticoid-secreting area. It makes two hormones: thyroid hormone, calcitonin. Thyroid hormones: t3 , t4 . Affects: cardiovascular function, respiration, glucose, muscle, digestion. It develops over a relatively long period of time. The situation that causes stress in an individual: psychosocial stressors.
