PSY290H5 Study Guide - Quiz Guide: Vas Deferens, Pituitary Stalk, Luteinizing Hormone
Document Summary
Castrated one chicken, left one normal, castrated another but replanted the. Results indicated castrated chicken showed no aggression or need to mount testes females. The endocrine system links the brain to organs that control body metabolism, growth and development and reproduction. Two mechanisms of hormone action: protein hormone action. Bind to specific receptor proteins on the surface of the target cell and activate chemical signals inside the cell (second messengers) which is camp. Camp is activated by a g-protein that turns atp into camp: steroid hormone action. When receptor and steroid molecule combine, the steroid- receptor complex enters the nucleus of the ell to bind to specific regions of the dna. This will lead to an increase or decrease in protein production. Posterior pituitary: does not produce hormones, hormones are stored and secreted, synthesized in the hypothalamus, the hormones are produced in the hypothalamus in the supraoptic and paraventricular nuclei, two types of hormones: oxytocin & vasopressin.
