| A | B |
|---|
| 2 main functions of male reproductive system | production and storage of sperm & transfer of sperm to woman |
| semen | thick fluid containing sperm |
| 4 STDs | Chlamydia, gonorrhea, syphilis, herpes |
| vagina | elastic passageway that etends from the uterus to the outside of the body |
| uterus | a hollow, muscular, pear-shaped organ |
| endometrium | tissue that lines the uterus |
| male sex cell | sperm |
| female sex cell | ova |
| implantation | when the zygote attaches to the uterine wall |
| embryo | the cluster of cells that develop between 3 and 8 weeks |
| umbilical cord | a ropelike structure that connects the embryo and the mother's placenta |
| how many months in a trimester | three |
| how many weeks in a healthy pregnancy | 40 weeks |
| why is it important that a baby cries at birth | to clear the amniotic fluid from his lungs |
| what is the final stage of pregnancy | when the placenta is delivered |
| miscarriage | the spontaneous expulsion of a fetus that occures before the 20th week |
| stillbirth | when the fetus is expelled from the body after the 20th week and does not live |
| ectopic pregnancy | when the zygote implants in the fallopian tube |
| how many chromosomes does a baby have | 46 |
| how many chromosomes from each parent | 23 |
| fallopian tubes | fingerlike projections that draw in the ovum |
| menstruation | the shedding of the uterine lining |
| what 2 chromosomes make a girl? | XX |
| what 2 chromosomes make a boy? | XY |
