Introduction to Maternal and Pediatric Nursing Chapter 3: Fetal
Development Questions and Answers
How many chromosomes are contained in each cell? -male
- -46 chromosomes (diploid number)
What influences the survival rate and speed of
How many pairs of autosomes are contained in each sperm? - -pH of female reproductive tract
cell? - -22
How many pair of sex chromosomes are there? -
What is mitosis? - -a continuous process by -1 pair
which the body grows and develops and dead body
cells are replaced.
What are teratogens? - -substances that can
cause birth defects; can be drug use, undernutrition,
What is spermatogenesis? - -process of smoking, etc
mitosis for sperm
Where does fertilization occur? - -outer third
What is oogenesis? - -process of mitosis for layer of fallopian tubes
ovum
What forms a zygote? - -union of the sperm
What is meiosis? - -the process by which cells and ovum
undergo two divisions & reduces chromosomes by
half (haploid)
What is cleavage? - -rapid mitotic cell division
of the zygote
What is gametogenesis? - -a process of
meiosis in which the gametes are formed
What is a morula? - -solid ball of cells
When does fertilization occur? - -when a sperm
penetrates the ovum & they unite What are the two distinct layers of the murula? -
-blastocyst-inner layer
trophoblast-outer layer
How long does an ovum survive after fertilization? -
-24 hrs
What does the trophoblast become? - -chorion
How long is sperm viable after being ejaculated into
the cervix? - -up to 5 days What forms the amniotic sac? - -chorion and
amnion
What chromosomes can sperm carry? - -either
X or Y What is the decidua? - -The endometrium
during pregnancy
What parent determines the gender of the fetus? -
1/4
Development Questions and Answers
How many chromosomes are contained in each cell? -male
- -46 chromosomes (diploid number)
What influences the survival rate and speed of
How many pairs of autosomes are contained in each sperm? - -pH of female reproductive tract
cell? - -22
How many pair of sex chromosomes are there? -
What is mitosis? - -a continuous process by -1 pair
which the body grows and develops and dead body
cells are replaced.
What are teratogens? - -substances that can
cause birth defects; can be drug use, undernutrition,
What is spermatogenesis? - -process of smoking, etc
mitosis for sperm
Where does fertilization occur? - -outer third
What is oogenesis? - -process of mitosis for layer of fallopian tubes
ovum
What forms a zygote? - -union of the sperm
What is meiosis? - -the process by which cells and ovum
undergo two divisions & reduces chromosomes by
half (haploid)
What is cleavage? - -rapid mitotic cell division
of the zygote
What is gametogenesis? - -a process of
meiosis in which the gametes are formed
What is a morula? - -solid ball of cells
When does fertilization occur? - -when a sperm
penetrates the ovum & they unite What are the two distinct layers of the murula? -
-blastocyst-inner layer
trophoblast-outer layer
How long does an ovum survive after fertilization? -
-24 hrs
What does the trophoblast become? - -chorion
How long is sperm viable after being ejaculated into
the cervix? - -up to 5 days What forms the amniotic sac? - -chorion and
amnion
What chromosomes can sperm carry? - -either
X or Y What is the decidua? - -The endometrium
during pregnancy
What parent determines the gender of the fetus? -
1/4
