Contraception Flashcards
What is contraception?
Any method to prevent pregnancy
How does it work (3)
• Blocking transport of sperm to avoid fertilisation of oocyte • Disrupting the HPG axis to interfere with ovulation • Inhibiting implantation of the conceptus into endometrium
Name some methods of contraception
.
How r Methods of contraception split?
Pic
What is the Lactational amenorrhoea method
Breastfeeding delays the return of ovulation after childbirth
Bc prolactin inhibits HPG axis
What r the Barrier methods.
Advantages and disadvantages
Physical barriers- preventing entrance of sperm into the cervix Can also used with spermicide so additional chemical barrier
Protection from STIs!!!
HPG Axis: Role of Progesterone
At low doses, moderate/high doses
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Combined Oral Contraceptive Pill
Principal action:
Secondary action:
Poc
Combined Oral Contraceptive Pill
Advantages and disadvatages
Poc