embryo
lasts from day 15 to about 8 weeks after conception
teratogens
substances that causes abnormal development
fetal circulatory system
...
what week does fetus respond to sound?
24
fetus can distinguish taste and react to different temperatures at what month?
5th month
in relation to senses, the fetus can do what at month 7?
eyes.. fetus can see.
fetus experiences REM
respiratory systesm
-week 4 development begins
-week 32: Sufficient surfactant is present in developed alveoli to provide infants with a good chance of survival
cardiovascular system
-first system to function
-third week development begins
-end of embryonic period is when heart is fully developed
GI system
-4th week development begins
-week 36 GI system is mature
renal system
-5th week kidneys form
-8th week kidneys are functioning
neurologic
-3rd week development begins
-not developed until adulthood