Gametogenesis Word Scramble
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Question | Answer |
the size of sperm is sloughed off during which phase? | spermiogenesis |
gonad precursors are what structures? | germinal ridges |
before puberty, testicular sex cords develop lumens to become? | seminiferous tubules |
at puberty, primordial germ cells in males become what? | spermatogonia |
what is the function for sertoli cells? | provide support and nutrition to sperm cells |
how do spermatogonia divide? | incomplete cytokenesis via mitosis |
how do spermatogonia differentiate into primary spermatocytes? | meiosis |
what event causes primary spermatocytes to become secondary spermatocytes? | the first meiotic division |
how long is the prophase of primary spermatocytes? | 22 days |
after the second meiotic division, secondary spermatocytes are called what? | spermatids |
what occurs during spermiogenesis? | spermatazoa maturation (spermatids become spermatazoa) |
cytoplasmic remains from spermiogenesis are called what? | residual bodies |
how long does spermatogenesis take? | 64 days |
female primordial germ cells become what? | oogonia |
how do oogonia proliferate? | mitosis |
primary oocytes enter what phase and stay there? | meiotic prophase I |
after meiotic prophase I, and with the addition of follicle cells (stroma cells), oocytes are called what? | primordial follicles |
By the end of the 3rd month of gestation, oogonia become arranged into clusters surrounded by what? | follicular cells |
how many primordial follicles are left by puberty? | about 400,000 |
how many primordial follicles ever ovulate? | about 500 |
the menstrual cycle causes what hormone to activate? | FSH |
how many primordial follicles are induced to maturation each cycle? | 5-15 |
what are corpus atreticum? | masses of atresia cells |
how are spermatozoa pushed towards the epididymis? | contractile elements of the wall of the seminiferous tubules |
once primordial follicles become primary follicles, the squamous follicular cells become what? | granulosa cells |
granulosa cells are what kind of tissue? | stratified epithelium |
what is the glycoprotein layer secreted by the oocyte and the granulosa cells? | zona pellucida |
what term is used to describe the irritation that occurs from the release of fluid and blood from the ovulation point into the pelvic peritoneum? | middle pain ("mittelscherz") |
what is the name of the stroma cells that surround the granulosa epithelium? | theca folliculi |
the theca folliculi differentiate into what layers and for what purpose? | theca interna and externa; externa are connective, interna secrete estrogen |
what develops that differentiates primary and secondary follicles? | antrum (fluid-filled space) |
what are the granulosa cells of the secondary follicle that remain around the oocyte? | cumulus oophorus |
a full-sized follicle is called a what? | Graafian follicle |
after a follicle reaches its full size, what cycle resumes? | meiosis I |
unequal cytokinesis of a primary oocyte will form a what? | polar body |
after the formation of a polar body, the secondary oocyte continues meiosis to what stage? | metaphase II |
after ovulation, the cumulus oophorus becomes what? | corona radiata |
the remains of a follicle form what structure? | corpus leuteum |
the corpus leuteum secretes what hormone? | progesterone |
if the egg is not fertilized, the corpus leuteum become what? | corpus albicans |
how are spermatogonia connected? | cytoplasmic bridges |
at what point does the primary oocyte become a secondary oocyte? | formation of polar body |
when does ovulation occur in the cell cycle? | after cell reaches metaphase II |
Created by:
mhassan
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