Study Guide for Exam 1 OB Nursing Exam
Questions With Correct Answers
What is the sequential process for conception? What are the main 4
| | | | | | | | | | | |
steps?
1. Gamete (egg,sperm) formation
| | |
2. Ovulation (The release of the egg from the ovary)
| | | | | | | | |
3. Fertilization (Union between the sperm and egg in the FALLOPIAN
| | | | | | | | | | |
TUBE)
4. Implantation (occurs in the endometrium of the uterus)
| | | | | | | |
What is the function of corpus luteum?
| | | | | |
The corpus luteum will continue to produce progesterone until the fetus
| | | | | | | | | |
is producing adequate levels to sustain the pregnancy, which usually
| | | | | | | | | | |
occurs between 7 and 9 weeks of pregnancy.
| | | | | | |
Progesterone is essential during early pregnancy because:
| | | | | |
,1. it allows the uterus to grow without having contractions
| | | | | | | | |
2. it supports the growth of the lining of the uterus
| | | | | | | | | |
3. it improves blood flow and oxygen supply
| | | | | | |
When does implantation occur?
| | |
6-10 days post or after conception
| | | | |
(starts from whole beginning of the sequential process of conception)
| | | | | | | | |
What are the developmental stages of fetal development?
| | | | | | |
1. Pre-embryonic
|
2. Embryo
|
3. Fetus
|
How long does the Pre-embryonic stage last?
| | | | | |
,conception until day 14. | | |
After the pre-embryonic stage, what is the next stage in fetal
| | | | | | | | | | |
development?
What day does this start and it lasts until? What is another determinant
| | | | | | | | | | | | |
for determining whether the stage is done or not?
| | | | | | | |
Why is this a critical developmental stage?
| | | | | |
What do you expect to be present in terms of development in the baby
| | | | | | | | | | | | | |
at this point?
| |
1. Embryo
|
2. Day 15 until 8 weeks after conception (or until a crown-rump length
| | | | | | | | | | | | |
(CRL) is 3 cm)| | |
3. This is a critical stage because cell division occurs here the most and
| | | | | | | | | | | | | |
malformation can occur here due to teratogens (drugs, tobacco, etc.).
| | | | | | | | |
, 4. By 8 weeks, organ systems and external structures are going to be
| | | | | | | | | | | | |
present.
What is the last stage of fetal development and when does this stage
| | | | | | | | | | | | |
start and when does it end?
| | | | |
-Fetus
-9 weeks until then end of pregnancy
| | | | | |
What is the chorion and what how would you compare the location of
| | | | | | | | | | | | |
the chorion compared to the amnion?
| | | | |
What is the main purpose of umbilical blood vessels?
| | | | | | | |
What is the main purpose of the chorionic villi?
| | | | | | | |
What does the chorion contain that eventually forms the placenta?
| | | | | | | | | |
What are functions of the placenta?
| | | | |
What connects the baby to the placenta?
| | | | | |
Questions With Correct Answers
What is the sequential process for conception? What are the main 4
| | | | | | | | | | | |
steps?
1. Gamete (egg,sperm) formation
| | |
2. Ovulation (The release of the egg from the ovary)
| | | | | | | | |
3. Fertilization (Union between the sperm and egg in the FALLOPIAN
| | | | | | | | | | |
TUBE)
4. Implantation (occurs in the endometrium of the uterus)
| | | | | | | |
What is the function of corpus luteum?
| | | | | |
The corpus luteum will continue to produce progesterone until the fetus
| | | | | | | | | |
is producing adequate levels to sustain the pregnancy, which usually
| | | | | | | | | | |
occurs between 7 and 9 weeks of pregnancy.
| | | | | | |
Progesterone is essential during early pregnancy because:
| | | | | |
,1. it allows the uterus to grow without having contractions
| | | | | | | | |
2. it supports the growth of the lining of the uterus
| | | | | | | | | |
3. it improves blood flow and oxygen supply
| | | | | | |
When does implantation occur?
| | |
6-10 days post or after conception
| | | | |
(starts from whole beginning of the sequential process of conception)
| | | | | | | | |
What are the developmental stages of fetal development?
| | | | | | |
1. Pre-embryonic
|
2. Embryo
|
3. Fetus
|
How long does the Pre-embryonic stage last?
| | | | | |
,conception until day 14. | | |
After the pre-embryonic stage, what is the next stage in fetal
| | | | | | | | | | |
development?
What day does this start and it lasts until? What is another determinant
| | | | | | | | | | | | |
for determining whether the stage is done or not?
| | | | | | | |
Why is this a critical developmental stage?
| | | | | |
What do you expect to be present in terms of development in the baby
| | | | | | | | | | | | | |
at this point?
| |
1. Embryo
|
2. Day 15 until 8 weeks after conception (or until a crown-rump length
| | | | | | | | | | | | |
(CRL) is 3 cm)| | |
3. This is a critical stage because cell division occurs here the most and
| | | | | | | | | | | | | |
malformation can occur here due to teratogens (drugs, tobacco, etc.).
| | | | | | | | |
, 4. By 8 weeks, organ systems and external structures are going to be
| | | | | | | | | | | | |
present.
What is the last stage of fetal development and when does this stage
| | | | | | | | | | | | |
start and when does it end?
| | | | |
-Fetus
-9 weeks until then end of pregnancy
| | | | | |
What is the chorion and what how would you compare the location of
| | | | | | | | | | | | |
the chorion compared to the amnion?
| | | | |
What is the main purpose of umbilical blood vessels?
| | | | | | | |
What is the main purpose of the chorionic villi?
| | | | | | | |
What does the chorion contain that eventually forms the placenta?
| | | | | | | | | |
What are functions of the placenta?
| | | | |
What connects the baby to the placenta?
| | | | | |
