lecture 11: female reproductive system Flashcards
what are organs of the female repro system
• Ovaries
- Uterine (fallopian) tubes
- Uterus
- Vagina
- Vulva
- Mammary glands
what is located on either side of the uterus
the ovaries
what are the 3 ligaments that hold to ovaries in postion
- Broad ligament
- Ovarian ligament
- Suspensory ligament
what ligament connecets the ovary to the fundus of the uterus
the ovarian ligament
what are the 4 structures of the ovary from most superifieical to deepest
ovarian mesothelium
tunica albuginea
ovarian cortex
ovarian medulla
which structure of the ovary covers the ovary
ovarian mesothelium
which structure of the ovary is deep to the germinnal epithelium
tunica albuginea
which structure of the ovary is deep to tunica albuginnea and contnainns ovarian follicles
ovarian cortex
which structure of the ovary is deep to the ovarian cortex
ovarian medulla
the ovarian mesotheloum covers what
covers the surface of the ovary
the tunica albuginea is deep to what
germinal epithelium
the ovarian cortex containts what
ovarian follicles
the ovarian medualla is deep to what
ovarian cortex
the follicles lie in what portion of the ovary
the cortex
the follicles consist of what
consist of oocyte in various stages of development and surrounding cells
(nourish oocyte and secrete estrogens as the follicle grows larger)
what are the surrounding cells of the follicles do
(nourish oocyte and secrete estrogens as the
follicle grows larger)
what is one mature follicle
Large, fluid-filled follicle that will soon rupture and
expel a secondary oocyte (ovulation)
what does corpus luteum contain
• Contains the remnants of an ovulated mature follicle
what does corpus luteum produce
Produces progesterone, estrogen, relaxin and
inhibin until it degenerates and turns into a corpus albicans (fibrous)
what is it called when the corpus luteum degenetates
turns innto corpus albicans (fibrous)
what is the blood supply to the female repro system
ovarian
on the right side, the ovarian drains where
straight to the IVC
o nthe left side, the ovarian drains where
renal veins
true or false: the ovarian artery always drains into the IVC
false, o nthe right side its IVC and left side its renal veins
what is oogenesis
formation of gametes in the ovaries
what is the equivalent to oogenesis in men
spermatogenesis
oogenesis involves only mesiosis 1?
no also meiosis 2
primordial germ cells differentiate into what during fetal dev
oogonia
are oogonia diploid or haploid
diploid
what is atresia
degeneration of most of these cells (oogonia)
a few oogonnia delevp into what
primary oocytes ((begin meiosis I but do not complete it until after puberty))
Each month after puberty in women, release of gonadotropic hormones from the
pituitary glands stimulate what
the
resumption of oogenesis:
after the release of gonadotropic hormones, what happens to the primary follicles
meiosis 1 resumes in many primary follicles
only 1 ofllicle will mature and ovulate
after The diploid (2n) primary oocyte completes
meiosis I, what is formed
two haploid cells of unequeal size form
what are the two haploid of unequal sizes fromed in women after meiosis 1
Smaller cells (first polar body) discarded nuclear material
• Larger cell (secondary oocyte) receives most of
the cytoplasm
true or false, after the prim oocyte completes meiosis 1, the first polar body that forms recives most of the cytoplasm
false, the secondary oocyte does
true or false: also meiosis 1 occurs in females, meiosis 2 occurs right after
false, it begins then stops and only if there is a sperm present and penetrates the secondary oocyte, meiosis 2 resumes
what happens to the matture cfollicle after meiosis begins and stops
The mature follicle ruptures soon after and
releases its secondary oocyte (ovulation)
• The secondary oocyte is swept into the
uterine tube
the secondary oocyte splits into what
2 haploid cells of unequal size
- Smaller cell: second polar body
- Larger cells: ovum (mature egg)
Nuclei of the sperm cell and ovum unite to form
what
a diploid (zygote
one oogonium gives rise to what
a single gamete
(ovum
what is the functionn of the fallopian tubes
Transport secondary oocyte and fertilized ova
from the ovaries to the uterus
what are the 4 parts of the fallopian tibes
Infundibulum
• Fimbrae
• Ampulla
• Isthmus
which part of the fallopian tube is more proximal to the uterus
the isthmus
what are the 3 layers of the fallopian tubes from deepest to superficual
mucosa
muscularis
serosa
what does the mucosa layer of the fallopian tubes contain
cilia help move the the fertilized ovum or secondary oocyte to the uterus
what does the muscularis layer of the fallopian tube do
peristaltic contraction help move the oocyte or fertilized
ovum toward uterus
what helps move the oocyte or fertilized ovum towards uterus
peristatlic contraction
fertilization of the ovum usually occurs in what part of the fallopian tube
ampulla
does fertilization ALWAYS occur in the ampula
Sometimes happens in the abdominopelvic cavity
true or false: fertilization can occur for 1 weeek after ovulate ?
false, may occur up to 24 h after ovulation
The zygote usually arrives in the uterus how many days
after ovulation
7
A few hours after fertilization, what happens to the the nuclear
materials of the haploid ovum and sperm
they unite
what is the Site of menstruation, implantation of a fertilized
ovum, and development of the fetus during
pregnancy
the uterus