Histology Quiz 11

primordial

what type of follicle?

primary

what type of follicle?

antral

what type of follicle?

1

how many follicles mature during each monthly cycle in humans?

atresia

degeneration process that other follicles undergo so only 1 dominant follicle can mature

corona radiata

layer of cells that surround oocyte in mature follicle and remain with oocyte during fertilization

antrum

grows in size in a mature follicle

cumulus oophorus

narrow stalk that connects the oocyte to granulosa and theca (ruptures during ovulation)

apoptosis of granulosa and oocyte, degeneration of follicle structure, phagocytosis

what is involved in follicular atresia?

mature, granulosum in tact

mature or atretic follicle? why?

atretic, granulosum in damaged

mature or atretic follicle? why?

progesterine

hormone produced by corpus luteum that induces growth of the uterine lining in preparation for possible fertilization and embryo implantation

temporary endocrine structure that produces estrogens to regulate uterus

function of corpus luteum

granulosum and follicular theca left behind by ovulated mature oocyte

what is the corpus luteum made of?

corpus albicans

what does the corpus luteum degenerate into if there is no fertilization?

it shrinks and is converted to ovarian stromal tissue

what happens to the corpus albicans over time?

atretic follicle

atretic follicle, corpus luteum, or corpus albicans?

corpus albicans

atretic follicle, corpus luteum, or corpus albicans?

corpus luteum

atretic follicle, corpus luteum, or corpus albicans?

receive oocyte form ovary, site of fertilization, mediate movement of eggs sperm and embryos

functions of oviducts

simple columnar with peg cells and ciliated cells

oviduct epithelium

highly folded mucosa with underlying muscularis

oviduct structure

peg cells

– Darker staining, non-ciliated cells \n – Secretory cells that produce multiple products

Fluid for lumen, Metabolic support for eggs and sperm, Factors for sperm capacitation

what do peg cells produce?

create current for movement, capture sperm during capicitation

functions of ciliated cells

embryo implantation, placenta formation, muscular contractions for childbirth

functions of the uterus

perimetrium, myometrium, endometrium

layers of the uterus (outside to inside)

3

how many layers/strata in the uterus myometrium?

outer and inner strata have parallel arrays but the middle layer has fiber bundles in many different directions

how are the myometrium fibers oriented?

downregulated

During pregnancy, gap junctions in the smooth muscle cells are _________ to prevent contractions

apical layer

“functional” endometrium layer that changes dramatically throughout the menstrual cycle

estrogens

what causes the changes in the endometrium during the ovarian cycle?

proliferative

which uterine stage?

secretory

which uterine stage?

menstrual

which uterine stage?