:frowning_face:REPRODUCTION:smiley: (MALE REPRODUCTIVE SYSTEM (Urethra:…
FEMALE REPRODUCTIVE SYSTEM
Vagina: connects uterus to outside body
Fallopian tubes: connect ovaries to uterus
Uterus: the fertilised cell develops into a baby here
Ovaries: produce ova
MALE REPRODUCTIVE SYSTEM
Urethra: sperm travell through it; expels urine
Penis: conteins urethra
Scrotum: bag of skin that regulate testicle's temperature
Vasa deferentia: connector to the seminal vesicles
Seminal vesicle: produces liquid that forms part of semen
Testicles: produce and store sperm
Prostate: produces liquid that forms part of semen
PREGNANCY & BIRTH
Birth: When the foetus is ready to be born, it pushes against the cervix. Amniotic fluid is released. The muscles of the uterus contract and the cervix opens to allow the baby to pass.
Development of the foetus: after nine weeks, the embryo develops into a foetus. It floats in amniotic fluid and it receives oxygen and nourisshment from the placenta
Development of the embryo: zygote multiplies until it becomes an embryo.
Fertilisation: sperm swim to the ovum. Once the ovum is fertilised, the cells multiply and divide until they form a zygote.
Breasts develop, pubic hair grows, acne or spots can be shown
The menstrual cycle: It is the series of changes a woman's body goes through to prepare for a pregnancy. About once a month, the uterus grows a new lining (endometrium) to get ready for a fertilized egg . When there is no fertilized egg to start a pregnancy, the uterus sheds its lining. This is the monthly menstrual bleeding (also called menstrual period) that women have from their early teen years until menopause, around age 50.
The testicles enlarge and scrotum becomes larger an coarser, the penis grows and boys become fertile. Hair grows all around the body, the voice deepens and skin becomes coarser
When boys reach puberty, their testicles start to produce testosterone. This brings lots of physical changes.