Across
- 1. an organ, formed from the chorion and the lining of the uterus, that provides for the nourishment of the unborn child and the elimination of its metabolic wastes
- 3. a membrane that surrounds the amnion and becomes attached to the uterine lining to gather noursishment for the embryo
- 4. a couple's inability to get pregnant after a year of trying to do so
- 6. a lack of sufficient oxygen to the brain that may result in neurological damgage or death
- 7. the most important of the male hormones, or androgens; essential for normal sexual development during the prenatal period and at puberty
- 10. sypathetic pregnancy, or the experiencing by fathers of some of the same physiological symptoms their pregnant partners experience
- 13. a disease that has little effect on a pregnant woman but may cause several serious birth defects, such as blindness, deafness, and mental retardation, in unborn children exposed in the first 3 to 4 months of gestation; German measles
- 14. a watertight membrane that surrounds the developing embryo, regulating its temperature and cushioning it against injuries
- 16. in brain development, the progressive diversification of cells that results in their taking on different characteristics and functions
- 18. any disease, drug, or other environmental agent that can harm a developing fetus
- 20. a hollow sphere of about 100 to 150 cells that the zygote forms by rapid cell division as it moves through the fallopian tube
Down
- 1. a maternal-fetal specialist who focuses on high-risk pregnancies
- 2. the process, occurring during the period of the embryo, in which every major organ takes shape in a primitive form
- 5. a mild tranquilizer that, taken early in pregnancy, can produce a variety of malformations of the limbs, eyes, ears, and heart
- 8. a substance that aids breathing by preventing the air sacs of the lungs from sticking together
- 9. loss of a pregnancy before survival of the baby outside the womb is possible
- 11. a common sexually transmitted disease that may cross the placental barrier in the middle and later stages of pregnancy, causing miscarriage or serious birth defects
- 12. pertaining to events or developments in the first month after birth
- 15. a fatty sheath that insulates neural axons and thereby speeds the transmission of neural impulses
- 17. condition in which the top of the neural tube fails to close and the main portion of the brain above the brain stem fails to develop properly
- 19. fetal death that occurs late in pregnancy when survival outside womb would normally have been possible