PSYC 3480 Chapter Notes - Chapter 4: Secondary Sex Characteristic, Muscogee, Endometrium

• School: York University
• Department: Psychology
• Course: PSYC 3480
• Professor: Noreen Stuckless

Document Summary

Adolescence: defined as a transition phase b. w. childhood n adulthood, begins at puberty (when a young person becomes physically capable of reproduction) Between ages of 10-15; average age for menses at 12. Media focuses on menses in a negative fashion. Biological aspects of menstrual cycle: hormone structure: Hypothalamus is crucial to menses because it levels estrogen levels. 1. follicle-stimulating hormone: acts on egg holders within ovaries, produces estrogen and progesterone. 2. luteinizing hormone: develops the ovum(egg) Progesterone: regulates system when level of luteinizing hormone. In response to low estrogen level; hypothalamus signals pit gland. Pit gland respond by releasing follicle stimulating hormone, matures follicles, signals ovaries to increase estrogen production. This increase in estrogen stimules development of endometrium lining also stops follicle stimulating hormone. Pit gland stop follicle stimulating hormone; produces luteinizing hormone. 5. this hormone suppresses growth in all follicles except one; therefore only one egg reaches maturity. Follicles releases ovum, on 14th day, called ovulation.