birth, breastfeeding, ivf

hormones that cause birth

immediately before birth the placenta stops making progesterone, the walls of the uterus begin to contract as a result, the pituitary gland releases oxytocin, this causes further contractions of the uterus

stage1 of birth

the contraction of the uterus pushes the foetus towards the cervix, mucous plug is expelled, this causes the cervix to dilate, during this stage contractions cause the amnion to break to release amniotic fluid

stage 2 of birth

foetus passes through the cervix and the birth canal head first, the umbilical cord if tied and cut the baby is now independent of the mother

stage 3 of birth

baby is born, the uterus continues to contract and it expels the placenta and foetal membranes

lactation

the secretion of milk from the mammary glands

colostrum

is a thick yellow fluid less fat and suagr higher in minerals antibodies and proteins, helps to nourish baby and provides protection from infection

breastfeedinf

milk production triggered by the release of prolactin by pituitary, progesterone during birth inhibits prolactin

benefits of breastfeeding

colostrum and breastmilk provides the baby with essential antibodies protecting it against infection, ideal balance of nutrients

birth control

the methods employed to limit the number of children that are born, removing the possiblity of fertilisation is called contraception, preventing the egg and sperm from meeting

male contraception

condoms, vasectomy (sperm ducts are cut and tied ,

female contraception

diaphragms, pill, iud, cut of oviducts, spermicide

infertility

is the inablity of a couple to achieve conception

IVF stands for

in-vitro fertilisation

process of IVF

egg is collected from ovary, the sperm and eggs are mixed outside the body and is fertilised and is transfered into the uterus and embryo implants on uterus wall

overview of IVF

fertility drugs stimulate the ovaries to produce more than one egg, several eggs are then surgically removed, eggs and spem are mixed together so that fertilistaion will occur, developing embryo can now be placed back into the females body for implantation to take place