NURS 4341 Exam 1 UPDATED
QUESTIONS AND CORRECT ANSWERS
Conception and fertilization require - CORRECT ANSWER favorable ph and cervical
mucus
Embryonic stage - CORRECT ANSWER most critical time in development of organs
and external features (day 15-8 weeks after conception)
At the end of 8 weeks - CORRECT ANSWER - all organ systems are present
- baby is most vulnerable to teratogens during this time
All women of childbearing age should be taking - CORRECT ANSWER folic acid
Placenta - CORRECT ANSWER - protects fetus from immune attack by the mother
- induces mother to bring more food to placenta
- near time of delivery produces hormones that ready fetal organs for life outside uterus
Hcg (human chorionic gonadotropin) - CORRECT ANSWER - preserves corpus
luteum and its progesterone production so endometrial lining is maintained
- basis for pregnancy test
Hpl (human placental lactogen) or hcs (human chorionic somatomammotropin) - CORRECT
ANSWER - modulates fetal and maternal metabolism and development of maternal
breasts for lactation
- decreases maternal glucose use to increase availability to fetus
Estrogen (estriol) - CORRECT ANSWER - enlargement of breasts, uterus, external
genitalia
- stimulates myometrial contracility
, Progesterone (progestin) - CORRECT ANSWER - maintains endometrium
- decreases contractility of uterus
- stimulates breast development
- provides nourishment for early conceptus
Relaxin - CORRECT ANSWER - causes relaxation of pelvic ligaments
- softens cervix in preparation for birth
Umbilical cord arteries - CORRECT ANSWER carry deoxygenated blood away from
fetus to the placenta
Umbilical cord vein - CORRECT ANSWER carries oxygenated blood from placenta to
fetus
Wharton jelly - CORRECT ANSWER specialized connective tissue that surrounds the
three blood vessels to prevent compression
Amnion - CORRECT ANSWER covers the umbilical cord and fuses with the chorion
on fetal side of placenta
Chorion - CORRECT ANSWER - chorionic villi burrow into decidua and become
placenta
- "c" for caring = maternal body
Amniotic fluid - CORRECT ANSWER - surrounds embryo and increases in volume as
pregnancy progresses
- reaches about 1 L at term
- derived from fluid transported from maternal blood across the amnion (98% water, 2%
organic matter)
QUESTIONS AND CORRECT ANSWERS
Conception and fertilization require - CORRECT ANSWER favorable ph and cervical
mucus
Embryonic stage - CORRECT ANSWER most critical time in development of organs
and external features (day 15-8 weeks after conception)
At the end of 8 weeks - CORRECT ANSWER - all organ systems are present
- baby is most vulnerable to teratogens during this time
All women of childbearing age should be taking - CORRECT ANSWER folic acid
Placenta - CORRECT ANSWER - protects fetus from immune attack by the mother
- induces mother to bring more food to placenta
- near time of delivery produces hormones that ready fetal organs for life outside uterus
Hcg (human chorionic gonadotropin) - CORRECT ANSWER - preserves corpus
luteum and its progesterone production so endometrial lining is maintained
- basis for pregnancy test
Hpl (human placental lactogen) or hcs (human chorionic somatomammotropin) - CORRECT
ANSWER - modulates fetal and maternal metabolism and development of maternal
breasts for lactation
- decreases maternal glucose use to increase availability to fetus
Estrogen (estriol) - CORRECT ANSWER - enlargement of breasts, uterus, external
genitalia
- stimulates myometrial contracility
, Progesterone (progestin) - CORRECT ANSWER - maintains endometrium
- decreases contractility of uterus
- stimulates breast development
- provides nourishment for early conceptus
Relaxin - CORRECT ANSWER - causes relaxation of pelvic ligaments
- softens cervix in preparation for birth
Umbilical cord arteries - CORRECT ANSWER carry deoxygenated blood away from
fetus to the placenta
Umbilical cord vein - CORRECT ANSWER carries oxygenated blood from placenta to
fetus
Wharton jelly - CORRECT ANSWER specialized connective tissue that surrounds the
three blood vessels to prevent compression
Amnion - CORRECT ANSWER covers the umbilical cord and fuses with the chorion
on fetal side of placenta
Chorion - CORRECT ANSWER - chorionic villi burrow into decidua and become
placenta
- "c" for caring = maternal body
Amniotic fluid - CORRECT ANSWER - surrounds embryo and increases in volume as
pregnancy progresses
- reaches about 1 L at term
- derived from fluid transported from maternal blood across the amnion (98% water, 2%
organic matter)
