BIOL 118 Lecture Notes - Lecture 13: Bisphenol A, Posterior Pituitary, Intellectual Disability
11 Dec 2015
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Document Summary
Endocrine signaling chemicals that are released into the environment and cause a behavioral change. Endocrine system - cells, tissues, and organs responsible for making hormones. Hormones - substances present in small quantities, have specific target organs. Endocrine gland - duct less (beta cells in the pancreas, made in islets of. Whether it is polypeptide, amino acid derivative or steroid. Endocrine disruptors - chemicals that disrupt the action of hormones. Bind to estrogen receptors and cause estrogen-like effects. Affects the physiology or behavior of the animal. Can cause abnormal development of the brain and reproductive tissue - increased risk for cancer. The posterior and anterior pituitaries are each influenced by different populations of neurons in the hypothalamus. The populations of hypothalamic neurons going to posterior pituitary. Produce adh and oxytocin -> sent through blood to target organ. Portal vessels - go between two capillary beds. Form of mental retardation on children born to women who are iodine deficient during pregnancy.
