biol 224 reproductive system
how ing does the corpus luteum last if fertilization does not occur
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how will estrogen affect LH levels?
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how will hormone levels change following ovuation
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understand how the follicles change and mature during the ovarian cycle
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what hormones will trigger the maturation of the ovarian follicles
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what role does progesterone play during the luteal phase
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what triggers meiosis II to begin? at what point will it pause?
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what types of cells are produced in this process?are those cells haploid or diploid?
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when does meiosis II occur in female?
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which hormone triggers ovulaion
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what will happen to those cells
1. oogonium-remians as a stem cell 2.primary oocyte-go through meiosis
functions of the layers of the endometrium
1.functional zone-contains most of uterine glands,undergoes dramatic change in thickness during menstrual cycle 2.basilar zone-attaches endometrium to the myometrium
list the processes involved in spermatogenesis list the pathway that sperm moves through
1.mitosis of spermatogonia 2.meiosis-produces spermatid 3.spemiogenesis-maturation of sperm starts at seminiferous tubules
what type of cells are produced as a result of mitosis during oogenesis?
1st polar body and primary oocyte
what cells are produced as a result of mitosis in males? are those cells haploid or diploid?
2n daughter cells they are diploid
when does meiosis I occur in females? at what point doe this process pause?
3-7 months of gestation pauses at prophase 1 until puberty
what cells are produced during meiosis II?are they haploid or diploid?
4 spermatids haploid
when does mitosis occur in females?
all mitotic division are completed prior to birth
fallegellum
allows sperm to swim
at the end of mitosis are the cells produced haploid or diploid?
diploid
how does the utherine lining change during proliferative phase? what hormone causes this?
estrogen causes epithelial cells in functional zone divide-thickens layer
two phases that comprise the ovarian cycle
follicular phase (preovulation), luteal phase(postovulation)
which layer of the utherine lining degenerates during menses phase
functional zone
know how levels of progesterone, estrogen, GnRH, LH, inhibit, and FSH change during proliferative phase
high levels of GnRH, LH and estrogen spike in FSH and inhibit low levels of progesterone
know the levels of estrogen, LH, FSH, inhibit, GnRH and progesterone will change during the secretory phase
low levels of GnRH, LH, FSH high level of progesterone, inhibit and estrogen if no fertilization happens-progesterone will then drop,high inhibit prevents follicle maturation
when does meiosis II finish?
mature ovum is fertilized
at which phase does the utherine cycle begin?
menes
levels of estrogen, LH, FSH,inhibit and FSH change during menes phase
menes phase-homrones are low (GnRH, LH, FSH, estrogen, progesterone)
list the phases of the utherine cycle
menes, proliferative, secretory
acorosome
on head of sperm -allows sperm to penetrate ovum
stem cells that are part of oogenesis are referred to as?
oogonium
lis the layers of the uterine wall
perimetrium myometrium endometrium
define spemiogenesis
physical maturation of sperm each spermatid matures into a spermatozoon(sperm)
At the end of meiosis I what cells are produced? are the cells haploid or diploid?
produce 2 secondary spermatocytes-haploid
when will meiosis I begin again?
puberty
what are the stem cells that are involved in spermatogenesis referred to as?
spermatogonium
what happens to those cells?
spermatogonium(2n divide again) primary spermatocyte 2n-meiosis
how does the uterine lining change during the secretory phase?
thickens more for preparing implantations