Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
Gestation
|
conception to birth; usually lasts 40 weeks; approximately 9 months
|
|
Zygote
|
conception to 2 weeks
|
|
Embryo
|
3 to 8 weeks
|
|
Fetus
|
9 weeks to birth
|
|
Trimester
|
3 months
|
|
1st Trimester
|
everything is being formed or made (i.e. eyes, fingers, etc.)
|
|
Amniotic Sac
|
protects baby; helps cushion growing embryo; as fertilized egg grows, a water-tight sac forms around it, gradually filled with fluid
|
|
Placenta
|
how baby feeds; a round, flat organ that transfers nutrients from the mother to the baby, and transfers wastes from the baby; keeps blood supply of woman and baby separate; giant filter; filters mom's blood for baby
|
|
Month 1
|
blood cells are taking shape, and circulation will begin; primitive face takes form with large, dark circles for eyes; mouth, lower jaw, and throat develop; baby is 1/4 inch long
|
|
Month 2
|
major organs develop; but are not finished growing yet; eyes and ears grow; heart beats strongly
|
|
Month 3
|
baby fully formed; arms, hands, fingers, feet, and toes are formed; can open and close its fists and mouth; teeth are forming; circulatory and urinary systems work; liver makes bile
|
|
Trimester 2
|
things are growing and developing; everything except lungs forms
|
|
Month 4
|
eyelids, eyebrows, eyelashes, nails and hair formed; teeth and bones become denser, baby can suck his or her thumb, yawn, stretch, etc.; nervous system is starting to function; reproductive organs and genitalia are now fully developed; everything developing
|
|
Month 5
|
baby's skin covered with vernix caseasa; baby 10 m. long, weighs 1/2 to 1 lb.
|
|
Month 6
|
baby may respond to sounds by moving or increasing the pulse, and you may notice jerking motions if baby hiccups; if born prematurely, baby may survive after this month with intensive care
|
|
Trimester 3
|
baby is pretty much just growing in size; getting bigger; lungs finish developing
|
|
Month 7
|
fat begins to be deposited on baby; hearing fully develops; baby changes position frequently; responds to stimuli (sound, pain, light, etc.); amniotic fluid begins to diminish
|
|
Month 8
|
baby kicking more; brain developing rapidly; can see and hear; most internal systems are well developed; lungs may still be immature
|
|
Month 9
|
lungs nearly fully developed; reflexes coordinated; can blink, close eyes, grasp firmly, respond to stimuli; baby moves less now, because not enough room; head will face down, to prepare for birth; don't want "breech"
|
|
Breech
|
head wrong way
|
|
Vernix Caseasa
|
protect's baby's skin from long exposure to amniotic fluid; is shed just before birth
|