Unit 4 Topic 3 Flashcards
What is found in the medulla?
loose connective tissue with blood vessels and nerves
What is found in the cortex?
connective tissue that contains follicles, oocytes, and theca folliculi
What is oogenesis?
female gamete development
What happens in oogenesis at 3-5 month fetus?
meiosis I begins, primary oocyte forms and arrests in prophase I
What happens in oogenesis during puberty?
meiosis I resumes and secondary oocyte forms, meiosis II begins, secondary oocyte arrests at metaphase I and is released with ovulation
What happens in oogenesis during fertilization?
meiosis II completion, ovum and sperm nuclei unite to create zygote
What follicle is a single layer of squamous follicular cells with basal lamina located deep to tunica albugenia?
primordial follicle
What follicle contains primary oocyte with eccentric nuclei?
primordial follicle
Is there zona pellucid in primordial follicles?
no
What follicle has cuboidal cells and is proliferative?
primary follicle
what follicle produces the primary oocyte?
primary follicle
What is secreted from the primary oocyte?
clear acellular material (zona pellucida)
What is the connective tissue sheath formed by stromal cells surrounding the follicle?
theca follicular
What is contained in the theca interna?
contains cells processing lare numbers of LH receptors, fibroblasts, collagen bundles, and blood vessels
What is contained in the theca externa
smooth muscle and collagen
Where does the secondary follicle migrate to?
deeper into cortex
What do the granulosa cells multiply and become in secondary follicles?
stratified cuboidal cells
What follicle synthesizes and secretes steroid hormones?
secondary follicle
What hormone stimulates the theca internal to secrete androgen and progesterone?
LH
what stimulates granulosa cells to make estrogen in secondary follicles?
FSH
What hormone surges 24 hours prior to ovulation?
LH (due to high levels of estrogen)
What is stimulated in the graafian follicle?
stimulates oocyte maturation creating secondary oocyte arrested in metaphase II
What are the structural changes that occur in postmenopasual ovary?
no functional follicles, no estrogen production, FSH levels increase, ovary atrophies and is non-palpable
What is the structure of the oviduct?
includes the infundibulum with fimbriae, ampulla, isthmus, and uterine regions
What is contained in the mucosa?
composed of mostly ciliated simple columnar epithelium with thin longitudinal folds that project into the lumen of the uterine tube
What part of the mucosa responds to hormonal changes?
uterine tube
What is the function of the oviduct?
connect ovary and uterus
What is the typical site of ovum fertilization?
oviduct
What is the inner most mucosal layer of simple columnar epithelium with lamina propria?
endometrium
What layer of the uterus responds to cyclic changes of hormones?
endometrium
What zone is not sloughed off during menstration?
stratum basalis
What is the regenerative zone for stratum functionalis?
stratum basalis
What layer is closest to the lumen and lost during menstraton?
stratum functionalis
What layer is the middle layer of smooth muscle?
myometrium
What layer is the outer layer of visceral peritoneum?
perimetrium
What phase is influenced by estrogen?
proliferative phase
What occurs during ovarian follicular phase with rapid proliferation of basal cells and elongation of spiral arteries?
proliferative phase
What phase is progesterone influenced?
secretory phase
What coincides with the activity of the corpus luteum with edematous s. functionals and gland enlargement?
secretory
What is influenced by red of estrogen and progesterone?
Menstrual phase
What contracts and breaks down to fill the lamina propria with blood?
spiral arteries
Endocervical canal is lined with….
simple columnar epithelium with glands
Ectocervix is lined with…
stratified squamous
What type of gland is a mammary gland?
modified sweat glands
What allows for erection of the nipple?
stroma contains smooth muscle
