PSY290H5 Lecture Notes - Lecture 6: Gonadotropin-Releasing Hormone, Sexually Dimorphic Nucleus, Luteinizing Hormone
Document Summary
Synthesis primarily occurs in the gonads: also in the adrenal glands. All steroid hormones are found in both males and females: amounts vary between the sexes, amounts also vary within each sex. Primary location: in the brain through the hpg axis. Gnrh = gonadotropin releasing hormone: example of a peptide hormone. When it is released from hypothalamus, it travels to the anterior pituitary. Travel from the pituitary gland and released into the blood stream. G: fsh: promotes the development of the follicle (egg, lh: regulates the menstrual cycle. Males: fsh: stimulates sperm production, lh: stimulates testosterone production. Negative feedback is the most common type of regulatory mechanism: example: thermostat in a home the brain detects the level and monitors the levels of different hormones. Positive feedback where the presence of estrodile will cause the hypothalamus and pituitary to release o more. Circulating hormones provide feedback to the hypothalamus and pituitary gland: after gnrh, lh and fsh production.
