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nadiaessaqi
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what is an oogonium? at what point in a females life will they be present?
(stem cells of females)begins before a womens birth 3rd and seventh months of fetal development.(diploid)
does oogonium undergo meiosis or mitosis
mitotic
what is produced as a result of oogonium cell division? what will happen to those cells?
primary oocytes (diploid)that prepair to undergo meiosis(hault) until puberty(fsh triggers ovarian cycle)
result after the primary oocyte division
secondary oocyte gives u haploid
will the haploid cells of the secondary oocycte fully mature
no
at what point in meiosis will secondary oocytes pause?
it pauses in meiosis2 until fertilization occurs
where will primordial follicles be found
primary oocyte and its follicle cells.begining at puberty(activated to join other follicles)
at what point do primordial follicles mature into primary follicles
ovarian phase follicular cells enlarge,divide,and form several layers of cells around the growing primary oocyte
in which kind of follicle will meiosis 1 complete
secondary follicle
whats the purpose of corpus luteum
empty graafian follicle collapses to form corpus luteum corpus luteum begins to secrete progesterone and
some estrogen prepairing the uterius for implantation by (secreting progesterone)
which component of the endometrium is shed during menstration?
Functional Zone
endometrium regenerate.
Basilar Zone cells divide to replace the tissue lost from the functional zone
maturation of secondary follicles into tertiary follicles caused by what hormone?
fsh
effect of inhibin on secretion of fsh
As those follicles develop levels of inhibin increase and this will cause a decrease in the secretion of FSH
the secretion of estrogen affect LH secretion
Maturing Follicles begin to release estrogen
@low blood levels estrogen will inhibit LH(keeps it from ovulating too soon.)
what affect an increase in LH will have on the luteal phase of the ovarian cycle
Increase in LH causes1completion of meiosis one
2rupture of follicle wall3ovulation4formation of corpus luteum*secretesprogesterone*thicken/maintain uterine lining if no pregnancy,corpus lutuem lasts about 12days then degenerates
which hormone will maintain the endometrial lining
progesterone
where do sperm mature
seminiferous tubules
how do spermatogonium divide
mitosis
primary speratocytes
diploid
what is produced when primary spermatocytes go thru cell division
1 spermatocyte divide to produce two 2 spermatocytes @ end of meiosis 1 (haploid) 23chromosomes
secondary spermatocytes divide to produce
meiosis 2-this produces 4 haploid spermatids
what will happen to the daughter cells from spermatogonium
primary spermatocyte divide by meiosis two spermatogonium 2n divide by meiosis 1 -1 spermatocyte