Full-Term Fetus Plaque

4

amniotic sac, holds fetus suspended in amniotic fluid

1 (identification only)

full-term fetus

3

placenta, facilitates exchange of materials between fetus and maternal circulation

2

umbilical cord, connects fetus to placenta

5 (I)

uterus wall

10

fornix of vagina, holds semen near cervix after copulation

1

umbilical cord, connects fetus to placenta

2

umbilical vein, brings oxygenated nutrient-rich blood to fetus

3

umbilical artery, brings deoxygenated waste rich blood to placenta

4

amnion, holds fetus suspended in amniotic fluid

5 (i)

chorionic plate

6

chorion, protects and nourishes fetus

7

villous stem, exchange of nutrients b/w maternal and fetal blood

8

villus, exchange of nutrients b/w maternal and fetal blood

9

intervillous cavity, area where villi bathed in maternal blood for exchange

10

maternal venule, drains deoxygenated maternal blood from intervillous space

11

deciduous septum, organizes placenta into compartments

12

spiral maternal arteriole, brings oxygenated, nutrient-rich maternal blood to intervillous space

13

marginal sinus, drainage channel for maternal blood

14

decidua basalis compacta, modified for pregnancy and shed after childbirth

15

decidua basalis spongiosa, modified for pregnancy and shed after childbirth

16

myometrium, contracts during childbirth

17

division of maternal and fetal blood

18

amniotic fluid, cushions/supports the developing fetus