Brain developed to the point that baby can suck, swallow and make irregular breathing movements.
6", 6 oz. (180 grams)
Complete closure of nasal septum and palate.
Fetal heartbeat heard with amplification.
Fetal movement is recognized. Sex is distinguishable now.
Meconium formation in intestines.
8", 10 oz. (300 grams).
Lanugo - fine hair covering the entire body, probably for protection of the skin.
Vernix Caseosa - secreted by the fetus, made of a sebaceous material, and other materials and is probably protective.
Has some antimicrobial substances.
Fetal heartbeat heard: 120-160 beats per minute.
12", 1 1/2 lbs. (720 grams).
Baby is maturing, not considered viable (until 28 weeks).
Baby can survive outside uterus if lungs capable of breathing.
10-20% survival if born at this time.
14", 2 1/2 lbs.
Fetus in the breech position until 32nd week.