WorksheetsMaternity Chapter 03: Fetal Development
Total questions: 33
Worksheet time: 20mins
What is the total number of chromosomes contained in a mature sperm or ovum?
a. 22
b. 23
c. 44
d. 46
A pregnant woman states, My husband hopes I will give him a boy because we have three girls. What will the nurse explain to this woman?
a. The sex chromosome of the fertilized ovum determines the gender of the child.
b. When the sperm and ovum are united, there is a 75% chance the child will be a girl.
c. When the pH of the female reproductive tract is acidic, the child will be a girl.
d. If a sperm carrying a Y chromosome fertilizes an ovum, then a boy is produced.
What is the most common site for fertilization?
a. Lower segment of the uterus
b. The outer third of the fallopian tube near the ovary
c. The upper portion of the uterus
d. Area of the fallopian tube farthest from the ovary
The embryo is termed a fetus at which stage of prenatal development?
a. 2 weeks
b. 4 weeks
c. 9 weeks
d. 16 weeks
. The nurse is reviewing fetal circulation with a pregnant patient and explains that blood circulates through the
placenta to the fetus. What vessel(s) carry blood to the fetus?
a. One umbilical vein
b. Two umbilical veins
c. One umbilical artery
d. Two umbilical arteries
Where is the usual location for implantation of the zygote?
a. Upper section of the posterior uterine wall
b. The lower portion of the uterus near the cervical os
c. The inner third of the fallopian tube near the uterus
d. Lateral aspect of the uterine wall
What is the embryonic membrane that contains finger-like projections on its surface, which attach to the uterine wall?
a. Amnion
b. Yolk sac
c. Chorion
d. Decidua basalis
Which hormone is responsible for converting the endometrium into decidual cells for implantation?
a. Estrogen
b. Human chorionic gonadotropin
c. Human placental lactogen
d. Progesterone
A patient asks the nurse when her infant's heart will begin to pump blood. What will the nurse reply?
a. By the end of week 3
b. Beginning in week 8
c. At the end of week 16
d. Beginning in week 24
What organ does the ductus venous shunt blood away from in fetal circulation?
a. Liver
b. Heart
c. Lungs
d. Kidneys
What complications can result from untreated respiratory distress in the newborn?
a. Esophageal atresia
b. Gastric dilation
c. Cold stress
d. Reopening of the foramen ovale
During an ultrasound, two amnions and two placentas are observed. What will be the most likely result of this pregnancy?
a. Dizygotic twins
b. Monozygotic twins
c. Conjoined twins
d. High birth-weight twins
A woman who is 25 weeks pregnant asks the nurse what her fetus looks like. What does the nurse explain is one physical characteristic present in a 25-week-old fetus?
a. Lanugo covering the body
b. Constant motion
c. Skin that is pink and smooth
d. Eyes that are closed
At what point in prenatal development do the lungs begin to produce surfactants?
a. 17 weeks
b. 20 weeks
c. 25 weeks
d. 30 weeks
A woman missed her menstrual period 1 week ago and has come to the doctor's office for a pregnancy test. Which placental hormone is measured in pregnancy tests?
a. Progesterone
b. Estrogen
c. Human chorionic gonadotropin
d. Human placental lactogen
When preparing to teach a class about prenatal development, the nurse would include information about
folic acid supplementation. What is folic acid known to prevent?
a. Congenital heart defects
b. Neural tube defects
c. Mental retardation
d. Premature birth
The nurse is educating a class of expectant parents about fetal development. What is considered fetal age of
viability?
a. 14 weeks
b. 20 weeks
c. 25 weeks
d. 30 weeks
The nurse is presenting a conference on gene dominance. What does the nurse report as the percentage of
children carrying the dominant gene if one parent has a dominant gene and the other parent does not?
a. 10%
b. 25%
c. 50%
d. 100%
The nurse explains that the birth weight of monozygotic twins is frequently below average. What is the most likely cause?
a. Inadequate space in the uterus
b. Inadequate blood supply
c. Inadequate maternal health
d. Inadequate placental nutrition
The school nurse is counseling a group of adolescent girls. What does the nurse explain about sperm ejaculated near the cervix?
a. They are destroyed by the acidic pH of the vagina.
b. They survive up to 5 days and can cause pregnancy.
c. They lose their motility in about 12 hours after intercourse.
d. They are usually pushed out of the vagina by the muscular action of the vaginal wall.
What does the nurse explain can affect the survival of the X- and Y-bearing sperm after intercourse?
a. Age
b. Estrogen level
c. Body temperature
d. Level of feminine hygiene
Of what is the normal umbilical cord comprised?
a. 1 artery carrying blood to the fetus and 1 vein carrying blood away from the fetus
b. 1 artery carrying blood to the fetus and 2 veins carrying blood away from the fetus
c. 2 arteries carrying blood away from the fetus and 1 vein carrying blood to the fetus
d. 2 arteries carrying blood to the fetus and 2 veins carrying blood away from the fetus
What part of the fetal body derives from the mesoderm?
a. Nails
b. Oil glands
c. Muscles
d. Lining of the bladder
A couple just learned they are expecting their first child and are curious if they are having a boy or a girl. At what point of development can the couple first expect to see the sex of their child on ultrasound?
a. 4 weeks gestational age
b. 6 weeks gestational age
c. 10 weeks gestational age
d. 16 weeks gestational age
A nurse is teaching a lesson on fetal development to a class of high school students and explaining the primary germ layers. What are the germ layers? (Select all that apply.)
a. Ectoderm
b. Endoderm
c. Mesoderm
d. Plastoderm
e. Blastoderm
What are the functions of amniotic fluid? (Select all that apply.)
a. Maintaining an even temperature
b. Impeding excessive fetal movement
c. Lubricating fetal skin
d. Acting as a reservoir for nutrients
e. Acting as a cushion for the fetus
A patient at the obstetric office has just learned she is pregnant with dizygotic twins. What facts will the nurse include when educating this patient? (Select all that apply.)
a. Dizygotic twins are of the same sex.
b. Dizygotic twins share a placenta.
c. Dizygotic pregnancies tend to repeat in families.
d. Dizygotic twins have separate chorions.
e. Dizygotic twin incidence decreases with maternal age.
The nurse explains that prior to fertilization each cell is reduced from 46 chromosomes to 23 chromosomes. This is referred to as the (a) number.
The component of development that programs the genetic code into the nucleus of the cell is (a) .
The vessels comprising the umbilical cord are cushioned and protected by a substance called ___________ _____________.
(a)
The normal volume of amniotic fluid is approximately (a) mL at 37 weeks gestation
Organize the developmental stages in the correct order. Put a comma and space between each answer choice (a, b, c, d, etc.)
a. Fetus
b. Zygote
c. Embryo
d. Blastocyst
e. Morula
(a)
Put the embryonic/fetal characteristics in the correct order of occurrence from week 3 to week 36 of gestation. Put a comma and space between each answer choice (a, b, c, d, etc.)
a. Subcutaneous fat is present.
b. Bone marrow forms blood cells.
c. Spinal cord and brain appear.
d. Skull and jaw ossify.
e. Neural tube closes.
(a)
