Stages Of Reproduction

Question 1

Ovulation

Answer 1

• once a month, ovaries, mature ovum, oviducts

* uterus wall thickens, blood vessels, possible implantation

Question 2

Menstruation

Answer 2

*no zygote, no longer needed, through vagina

Question 3

Fertilization

Answer 3

• copulation
• ejaculation, only one penetrates ovum
• to cervix, through uterus, to oviducts
• meet mature egg, traveling towards uterus
• burrows, no more allowed

Question 4

Pregnancy and birth

Answer 4

• begins, zygote
• divide+grow as it moves down oviduct, implants in uterus, continues
• embryo, cell division, organs and systems
• 9 months
• end, uterus contracts, vagina

Question 5

Placenta

Answer 5

• some of the clusters of cells that form after fertilization
• partly mom, partly baby
• UC attaches embryo to placenta
• O2 + nutrients

Question 6

Reproductive cycle

Answer 6

• repeats every 28-30 days
• egg cell released to be fertilized if sperm are present
• puberty to menopause