Pregnancy and Childbirth 1
The moment of fertilization
What is conception
True/False: the placenta prevents dangerous substances from passing from the mother to the embryo?
False
high-frequency sound waves used to create an image of the fetus
What is an ultrasound?
How big is the head of the embryo in relation to its body at around 8 weeks of development?
makes up approximately half the size of the developing baby
True/False: the fetus begins to move and kick during the third to sixth month of development.
True
united egg and sperm
zygote
structure containing blood vessels that carry nutrients and oxygen from the mother to the embryo
What is the umbilical cord
characterized by high blood sugar levels
What is gestational diabetes?
medical care during pregnancy
What is prenatal care?
a doctor who specializes in pregnancy and childbirth
What is an obstetrician?
From the two cell stage until about nine weeks after fertilization, the growing structure is called
embryo
From the third month until birth, the growing structure
What is a fetus?
test in which a doctor removes amniotic fluid
What is an amniocentesis?
True/False: the chances of having a healthy baby greatly increase if the mother visits her doctor for regular checkups throughout pregnancy?
True
one of three periods of time that divide a pregnancy
What is a trimester?
process of attachment
test in which a doctor removes a piece of the placenta
exercise, proper nutrition, avoiding alcohol and other drugs, avoiding environmental hazards
What are the four behaviors essential for a healthy pregnancy?
Vitamin that is vital for development of the neural tube (which later develops into the spinal cord and brain)
What is folic acid?
x-rays, lead, mercury, cat litter
What are environmental hazards?
when the blastocyst implants in the fallopian tube
What is an ectopic pregnancy?
Structures that protect and nourish the growing embryo
What is the amniotic sac, placenta, umbilical cord?
Only one typically, because a rapid depolarization of the egg plasma membrane, which is caused by the fusion of the first sperm, prevents further sperm from fusing
What is how many sperm can fertilize an egg?
What is how long the fertilized egg stays in the fallopian tube?
high blood sugar levels, swelling of the wrists and ankles and high levels of protein in the urine
What is preeclampsia?