BIOL 1301 Lecture Notes - Lecture 24: Semen Analysis, Facial Hair, Cardiovascular Disease
Document Summary
Describe the process of ferilizaion and preimplantaion embryo development. Outline the process of ivf and assisted reproducion. Describe the theories behind the fetal origins of adult disease. Hypothaiamic pituitary gonadai axis acivaion at puberty. Testosterone is synthesized from choiesteroi and acivates transcripion. Testosterone can be converted to other steroid hormones. Efects on central nervous system eg libido/sex drive. Drives development of secondary male sex characterisics. Changes in piasma testosterone ieveis in maies with age. In the piasma: efects outside of reproducive organs. Drives development of secondary female sex characterisics. Breast development and maturaion of mammary glands. Deposiion of adipose (fat) issue in breasts, thighs, hips. The ovarian cycie reguiates the uterine (menstruai) cycie. Embryo produces hormone human chorionic gonadotrophin (hcg) Plasma concentraion of hcg increases as embryo develops. Detecion of hcg in urine is basis of pregnancy test. 4. 3% of babies born in australia result from art in 2014.
