2.3 Flashcards
what is the difference in fertility in men and women
women are cyclically fertile meaning they are only fertile for a few days
men are continuously fertile meaning sperm is constantly produced
how do you identify when a women is fertile
her body temperature rises by around 0.5c after ovulation and her cervical mucus becomes thin and watery
how do you stimulate ovulation
drugs that mimic fsh and lh
how does artificial insemination work
several samples of semen are collected over a period of time and the is injected through the vagina
what is intra cytoplasmic sperm injection
head of sperm is injected into the cytoplasm of the egg to fertilise it
describe ivf
eggs are removed after hormone stimulation, they are mixed with sperm in a culture dish, then incubated and transferred to the uterus
what is pgd used for
to identify single gene disorders and chromosomal abnormalities
how does an iud work
makes it difficult for sperm to meet egg and thins endometrium lining
how does the combined pill work
mimics negative feedback preventing fsh and lh production
how does the mini pill work
thickens cervical mucus
how does a vasectomy work
tubes that carry sperm are cut stopping sperm leaving the body
what is tubal ligation
permanently blocks if removed a women’s oviduct
