Pregnancy & Birth Flashcards
How many sperm egg combos can each parent create?
2 to the 23rd
How many inches must the cervix dilate until the woman us allowed to push?
10”?
What are teratogens?
They affect baby negatively in the first 10-16 wks
What is “pregnancy sickness” an adaption for?
It is a physical adaption which helps the mother protect the fetus from toxins in her diet.
True or false? Women who experience pregnancy sickness are less likely to have a miscarriage
True
What is mylineation ?
Development of a fatty sheath around the axon
What is synaptogenesis?
Growth of synapses between neurons
What is synaptic pruning?
Developmental process by which synapses are eliminated
Do all zygotes survive implantation ?
No. 3/4 zygotes do not survive. Only 1/4 survive.
What are a baby’s 4 major support structures?
Amnion. Chrorion. Placenta. Umbilical cord.
What is the amnion?
Fluid filled sac. Regulates temperature, provides cushion and gives the baby weightless movement. This sac breaks when womans water breaks
What is the chorion?
Surrounds the amnion. Develops villi. Becomes placenta lining.
What is the placenta ?
Connected to mother & babies blood supply. Villi prevents blood from mixing. Provides a barrier for nourishment from the mother for the baby. And waste from the baby to the mother.
Umbilical cord. What is the ?
Connects baby to placenta. Oxygen and nutrients go in. Waste goes out.
