Embryonic and Fetal Development Worksheet Flashcards
Considerations for a good sperm production:
caffeine, not smoking, avoiding tight underwear, avoiding hot baths
once sperm penetrates the egg, can other sperm cells enter and still compete?
no
whose chromosomes determine the sex of the future baby?
father’s
what is the significance of stem cells?
they can turn into any type of cell and grow into any certain part of the body
maternal blood volume is increased by __%
50%
which organ is formed first?
heart
at four weeks which organs start to form?
heart, skin
when does the embryo become a fetus?
8weeks
what are some important functions of the placenta?
provide nutrients, filters waste, produces hormones
What are the dangers of ultrasound scans?
change in brain cells, linked to decreased weight in fetus
When does the second trimester start?
12 weeks
When do most miscarriages happen (gestational age, trimester)?
first 3 months, 1st trimester
Which extremities develop first: hands or feet?
hands
What senses are developed in intrauterine environment?
touch, taste, hearing, smell
What sense is the most developed at 3 month gestation?
hearing
What is the purpose of swallowing while inside the womb?
helps digestive system develop and maintain fluid balance
which assessment data provides a good indication of fetal general condition?
monitoring heart beat
How does maternal stress affect fetal development?
increase BPandHR can filter to fetus - HR will rise low birth weight, prematurity - mental development
Which major organ is formed last?
lungs
What is surfactant and what is its role?
liquid lipid produced for lungs, reduce surface tension of fluid in lungs
Which trimester is the most comfortable for mothers?
second trimester
