HISTOLOGY Flashcards
what is the outer layer of epithelium of ovarian cortex (outer)
cuboidal epithelium (germinal epithelium)
what is internal to cuboidal epithelium in the ovarian cortex (outer)
tunica albuginea
what is in the medulla (inner) of the ovaries
arteries, veins, lymphatics, loose connective tissue
folliculogenesis definition
growth of a follicle
what is a follicle made of
oocyte and support cells (pregranulosa cells)
by what movement does oocytes travel down the fallopian tubes
which type of epithelium allows this to happen
peristalsis
ciliated epithelium (think hairy)
which layer of the uterus contains glands
why are they here
endometrium (the layer that is shed)
to secrete mucosa into uterus
which part of the endometrium is the part that sheds and grows each month
which part remains
stratum functionalis sheds (its the functional bit)
stratum basalis stays (= its the base)
what happens to arterioles to allow the shedding of stratum functionalis
they become constricted = ischaemia of tissue = breaks down
what is the myometrium made of
smooth muscle, cartilage, elastic
what is the perimetrium made of
loose connective tissue, mesothelium (on outside)
what are the 2 histologically defined areas of the cervix
what is between them
ectocervix
endocervix
separated by the squamocoloumnar junction (transition zone TZ)
where is the ectocervix
what type of cells are there
closer to vagina
stratified squamous epithelium
where is the endocervix
what type of cells are there
closer to uterus (en = further IN)
simple columnar epithelium
in the cervix, are the cervical glands in the ectocervix or the endocervix
endocervix (next to uterus - uterus also has glands)
over time what is a normal metaplasia in the cervix
why
what does this cause
in the endocervix (closer to uterus)
simple columnar epithelium changes to squamous epithelium
bc of exposure to acid from vagina
causes a change in the transition zone
where is the transitional zone (squamocolumnar junction) of the cervix
between the endocervix (simple columnar epithelium) and ectocervix (stratified squamous epithelium)
clinical significance of transition zone (squamocolumnar epithelium) of cervix
why
most susceptible to dysplasia
bc the transition zone changes over time anyway
are there glands in the vaginal epithelium
no - lubrication only comes from cervical glands in endocervix
type of epithelium in vagina
non keratinized squamous epithelium (like inside of cheek)
differencesbetween labia major and labia minor (2)
minor - no hair follicles, non keratinsed squamous epithelium (major is keratinized)
what type of cells produce IgA, hence there are lots of in the breast
plasma cells
in the breast, what are the acini/glands lined with
secretory epithelium (columnar or cuboidal)
in the breast what are the ducts lined with (2)
stratified columnar epithelium at the start
thin stratified squamous epithelium near the nipple
