Ch 29: Pt 4 Embryo Development

39 terms by snnjd9g6 

Create a new folder

Advertisement Upgrade to remove ads

PLACENTA

the ___ develops between week 3 & 12; hCG is at its highest (about 9th week); site of exchange between mother & fetus; produces hormones needed to sustain pregnancy.

PLACENTA

the ___ stores nutrients such as carbohydrates, calcium, iron, glycogen, protein & fat which are released into fetal circulation as needed.

can

oxygen, CO2, nutrients, waste, alcohol, drugs, certain viruses (HIV, hepatitis B, measles, german measles), IGG CAN/CANNOT? penetrate the placenta.

cannot

worms, certain parasites (that are not viral) & bacteria CAN/CANNOT? penetrate the placenta.

IGG

___ is an antibody that goes from mom to baby, so baby is somewhat protected; microbe.

9TH WEEK

hCG is at its highest around the ___ of fetal development; placenta is fully developed.

CHORIONIC VILLI

___ are finger like projections (blood vessels) that project into the endometrial wall of the uterus;

ENDOMETRIUM

the decidua basalis was originally the ___.

ESTROGEN, PROGESTERONE, AND SMALL AMOUNTS OF hCG

the placenta secretes hormones: ___.

PROGESTERONE

___ is the hormone that maintains the blood lining during fetal development.

hCS

___ is the hormone is responsible for development of the mammary glands, late in the 3rd trimester.

CRH, ACTH, CORTISOL, OXYTOCIN

the hormone ___ involved in the timing mechanism of baby being born; activates baby to release the hormone ___ which causes the adrenal glands to secrete the hormone ___, which is connected to the release of the hormone ___ from baby, that helps to begin contractions.

CONNECTING STALK, ARTERIES, VEIN, STEM

the umbilical cord is the connection between placenta & embryo; develops from the ___; consists of 2 ___ & 1 ___; and ___ CELLS.

ARTERIES

the umbilical ___ carry (CO2 blood) deoxygenated FROM the fetus' blood TO the placenta.

VEIN

the umbilical ___ carries oxygen & nutrients FROM mother's intervillous spaces TO the fetus

WHARTONS JELLY

___ is the supporting mucous CT in the umbilical cord, derived from the allantois.

AMNIOTIC FLUID

the ___ consists of baby urine & materials from moms blood; helps prevent adhesions; prevents baby from drying out; shock absorber; temperature regulator;

ORGANOGENESIS

___ is established at week 4; where all the organs have been developed; immature but still working.

PHARYNGEAL ARCHES

___ are formed at week 4; become structures of the head & neck;

APOPTOSIS

___ is preprogrammed cell death by lysosomal digestion; skin between fingers & toes is digested; occurs week 5-8.

LYSOSOMAL

___ digestion is the breakdown of webbing between fingers & toes; occurs week 5-8.

2ND & 3RD TRIMESTER

the fetal period is the ___ of pregnancy

LANUGO

___ is fine hair that covers the baby; keeps vernix caseosa in place; falls off at birth.

VERNIX CASEOSA

___ is a greasy cheese substance that sticks to the skin for protection; prevents baby from drying out skin.

25-26

a permature baby born at ___ weeks is not fully developed; before the 3rd trimester; will have under developed surfactant, cerebral cortex & adipose tissue.

SURFACTANT

___ is the lipo protein in the lungs need to keep them inflated.

ADIPOSE

___ tissue development is needed for a source of nutrition.

ULTRASOUND

___ are high frequency sound waves that produce a black & white image; routinely given; determines age & growth of fetus.

16TH, ASLEEP

amniocentesis is done at about the ___ week; done to determine if there is a genetic disorder; done while fetus is ___.

AFP, ALPHA-FETOPROTEIN

___ test is done to detect ___ levels, if levels are high after the 16TH week baby could be down syndrome.

CHORIONIC VILLI SAMPLING (CVS)

in ___ a catheter is guided thru the vagina & cervix to the chorionic villi by ultrasound guidance; tissue is suctioned out for chromosomal analysis.

LABOR (AKA PARTURITION)

___ is the process of expelling the fetus from the uterus thru the vagina.

DILATION (AKA DILATATION)

___ stage of labor is when the cervix opens; could take many hours to reach 10 cm; oxytocin encourages the contractions of the uterus.

BLOODY SHOW (AKA EFFACEMENT)

___ happens when the mucous plug is released; mucous & blood.

DILATES, AMNIOTIC

water breaks when cervix ___ and ___ fluid leaks thru.

EXPULSION

___ is from the time the babies head is seen and the baby comes out of the body.

EPISIOTOMY

an ___ is a cut from the vagina to the anal area; opens up the vaginal region and makes the birth easier.

PLACENTAL

___ stage of labor happens within 15-30 min. after birth; progesterone & estrogen levels go down & trigger the release of prolactin, decreases dopamine, increases oxytocin; placenta is delivered.

COLOSTRUM

___ is a greenish, yellowish fluid with lots of protein, IGA, little to no fat & very little lactose.

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set