CYAF 471 Lecture Notes - Lecture 4: In Vitro Fertilisation, Artificial Insemination, Varicose Veins

• School: UNL
• Department: Child, Youth and Family Studies
• Course: CYAF 471
• Professor: Rose Esseks

Document Summary

Although ejaculate commonly contains 200-400 million sperm, only a few hundred actually reach the ovum. Ovum can live maximum of 24 hours after ovulation without fertilization. At least 99% of sperm die within 72 hours of ejaculation. Intercourse takes place a few days before to shortly after ovulation (i. e. a few hours. During intercourse, couple uses male-above position and female remains lying down after ejaculation. Roughly 15% of american couples experience infertility (not conceiving after one year of trying). Age- female fertility declines after 30; male fertility declines less. Nonmedical- low sperm counts, ejaculate no more often than every 48 hours, wear looser shorts, avoid hot baths. Medications- clomiphene increases rates of fsh and lh, and pergonal increases fsh, stimulating ovulation. Gestational carrier (surrogate mother)- volunteer who undergoes artificial insemination or in vitro fertilization. Artificial insemination- partner or donor semen inserted into vagina, cervix, or uterus.