Pregnancy

Last updated 2023.02.20 Edit Source

• Biology
• Reproduction
• Human body
• Human

lasts 40 weeks (38 weeks from conception)

Conception/fertilization in the oviduct (14th day of menstrual cycle)
the zygote dicides and travels a week into the uterus → begins implantation

• conception
• implantation
• fast development of embryo/fetus

• heartbeat

embryo → fetus

• mother’s and fetus’ blood get in touch indirectly (through capillary walls)
• fetus connected through umbilical cord

• early organ systems
• 8cm long
• sex organs begin to appear

• baby bump can be seen
• women feel energetic in this period
• can hear and react to noises of environment
• 38cm and 1.2kg at the end of trimester
• !! can survive outside of the uterus (with high-quality medical care)

• movement of fetus felt

• sex organs seen on ultrasound

• 500g per month
• moves less (lack of space)
• turns into a downward position (last month)
• fetus descends in last 4 weeks

the hypothalamus of the fetus initiates it

1. contraction of the uterus
2. the caul ruptures, amniotic fluid flows away
3. cervix opens up ^59e81a
4. expulsion stage
5. placenta is pushed out (after baby)

(labor lasts 3-20 hours)