'Postterm' birth
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birth AFTER 42 weeks, the latest it typically takes
What structures actually perform diffusion b/t maternal and placental blood?
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Fetal chorionic villi
,IF FERTILIZATION DOES OCCUR,
This becomes the job of the corpus luteum:
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To continue making progesterone (/estrogen) until the end of the first
trimester
The part of the blastocyst that becomes the placenta is...
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Inner Cell Mass
T/F: male gametes perform symmetrical division, unlike females
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T
Males don't produce a polar body that disintegrates
T/F: the testes form in response to testosterone
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F!
(at the start)
ONLY testes-determining factor found in the SRY region of
Y chromo promotes testes development
Acrosome
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Vesicle at the tip of a Spermatozoa (mature sperm only)
derived from Golgi that contains the enzymes to
breakdown zona pellucida on oocytes
At what time are the bipotential primordium, Mullerian Duct & Wolffian Duct present
in a fetus?
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Week 6
, Since there is a Blood-Testis barrier and thus blood cannot deliver nutrients to sperm,
how do they get nutrients?
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from sertoli cells, aka nurse cells
they just take the stuff out of blood and give it to sperm
In semen, ____% of it is actually the sperm cells
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1%!
'Preterm' birth
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Fetus born week 28-37 (early);
Usually viable without intervention (have surfactant at 28 weeks), or
synthetic is born before that
In the absence of testosterone (XX), this is what happens
Give this one a try later!
birth AFTER 42 weeks, the latest it typically takes
What structures actually perform diffusion b/t maternal and placental blood?
Give this one a try later!
Fetal chorionic villi
,IF FERTILIZATION DOES OCCUR,
This becomes the job of the corpus luteum:
Give this one a try later!
To continue making progesterone (/estrogen) until the end of the first
trimester
The part of the blastocyst that becomes the placenta is...
Give this one a try later!
Inner Cell Mass
T/F: male gametes perform symmetrical division, unlike females
Give this one a try later!
T
Males don't produce a polar body that disintegrates
T/F: the testes form in response to testosterone
,Give this one a try later!
F!
(at the start)
ONLY testes-determining factor found in the SRY region of
Y chromo promotes testes development
Acrosome
Give this one a try later!
Vesicle at the tip of a Spermatozoa (mature sperm only)
derived from Golgi that contains the enzymes to
breakdown zona pellucida on oocytes
At what time are the bipotential primordium, Mullerian Duct & Wolffian Duct present
in a fetus?
Give this one a try later!
Week 6
, Since there is a Blood-Testis barrier and thus blood cannot deliver nutrients to sperm,
how do they get nutrients?
Give this one a try later!
from sertoli cells, aka nurse cells
they just take the stuff out of blood and give it to sperm
In semen, ____% of it is actually the sperm cells
Give this one a try later!
1%!
'Preterm' birth
Give this one a try later!
Fetus born week 28-37 (early);
Usually viable without intervention (have surfactant at 28 weeks), or
synthetic is born before that
In the absence of testosterone (XX), this is what happens
