12 weeks correct answers The sex of the fetus can be determined. Blood forming in marrow.
Kidneys able to secrete urine.
16 weeks correct answers baby's sex can be seen
although thin, the fetus looks like a baby
20 weeks correct answers -Heartbeat can be heard with fetoscope.
-Mother feels movement (quickening).
-Baby develops a regular schedule of sleeping, sucking, and kicking.
-Hands can grasp.
-Baby assumes a favorite position in utero.
-Vernix caseosa (lanolin-like covering) protects the body, and lanugo (fine hair) keeps oil on
skin.
-Head hair, eyebrows, and eyelashes present.
24 weeks correct answers Eyebrows and fingernails develop
28 weeks correct answers A premature baby usually has difficulty breathing. However, the
respiratory system is developed enough for survival.
Alveoli have started to develop
can start to exchange blood by itself
32 weeks correct answers -Baby has fingernails and toenails
-Subcutaneous fat is being laid down
-Baby appears less red and wrinkled
36 weeks correct answers Face and body have a loose wrinkled appearance because of
subcutaneous fat deposit
Lanugo disappears
Amniotic fluid decreases
40 weeks correct answers Fetus kicks actively
Fetal hemoglobin to adult hemoglobin
Sole creases cover the feet at least 2/3
Lightening occurs
Wt: 3,000 g; length 48 to 52 cm