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Female Reproduction System
na
59
Anatomy
Undergraduate 3
11/27/2012

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Term
female reproductive system
produces:
secretes:
provides:
undergoes:
Definition
Produces gametes (ova)
Secretes most female sex hormones
Provides for a developing embryo
Undergoes cyclical changes
Term
Gamete production is -- which is--
Definition
limited, pool established at birth
Term
cyclical changes in the female reprod. sys
Definition
ovarian cycle and uterine cycle
Term
ovaries
Definition
produce ova and hormones
small/almond shaped
Term
uterine tubes
Definition
(oviduct)
trasports ova to uterus
site of fert
Term
uterus
Definition
provides environment for developing embryo/fetus
Term
vagina
Definition
delivery of baby
Term
ovaries are held in place by
Definition
ligaments and mesenteries
Term
mesentery surrounding each ovary=
part of the:
Definition
mesovarium
broad ligament
Term
attached ovary to lateral pelvic wall
Definition
suspensory ligament
Term
attached ovary to uterus
Definition
ovarian ligament
Term
arterial blood supply to ovaries:
Definition
ovarian arteries
Term
fibrous capsule of ovary=
Definition
tunica albuginea
Term
cortex of ovary
Definition
contains developing gamets
Term
medulla of ovary
Definition
Loose CT
largest blood vessels, nerves and lymphatics
Term
developint gametes=
Definition
oocytes
Term
Oocytes always surrounded by supportive cells called
Definition
follicular cells
Term
Oocytes plus follicular cells =
Definition
follicles
Term
most immature follicle-
Definition
primordial follicles
Term
primordial follicles epithelium-
Definition
single layer of squamous follicular cells
Term
primordial follicles most remain - and eventually -- but some become:
Definition
Most remain dormant and eventually degenerate;
some become primary follicles
Term
fetal ovary has about -- primordial follicles
Definition
3-4 million
Term
When is the ooctye known as a primary ooctye?
Definition
When primordial follicles become surrounded by one or more layers of cuboidal cells = granulosa cells
Term
what is a primary follicle?
Definition
Primary oocyte + granulosa cells = primary follicles
Term
how many primary follicles at birth?
How many mature and be released as ova? When does this happen?
Definition
At birth: about 2 million primary follicles
Only about 400 primary follicles will mature and be released as ova
One per month starting at puberty until about age 45
Term
to the primary follicles that dont mature what happens?
Definition
degenerate= atresia
Term
what is the development of primary follicles stimulated by and from where?
Definition
follicle stimulating hormone from anterior pituitary gland
Term
zona pellucida
Definition
A layer of protein surrounds the developing oocyte
Term
zona pellucida is secreted by
Definition
both oocyte and granulosa cells
Term
zona pellucida is a future barrier for
Definition
sperm to penetrate during fertilization
Term
what breaks through the zona pellucida?
Definition
Acrosomal enzymes in sperm head used to break through zona pellucida
Term
what happens as soon as sperm penetrates zona pellucide?
Definition
it hardens and prevents other sperm from fertilizing oocyte
Term
What are secondary (antral) follicles
Definition
primary follicles continue to grow
Term
in secondary (antral) follicles the granulosa cells:
Definition
divide and form many layers and become surrounded by specialized CT cells =Theca cells
Term
WHat is a secondary follicles?
Definition
Oocyte + granulosa cells + thecal cells
Term
secondary follicles develop
Definition
Develop fluid filled space = antrum ; filled with liquor folliculi
Term
what secretes estrogens?
Definition
Granulosa cells + thecal cells
Term
As secondary follicles continue to develope, the antrum- until- except-
Definition
The antrum expands until it separates the oocyte from most granulosa cells (remains connected by a stalk of cells), except;
A layer of granulosa cells remain around oocyte = corona radiata
Term
the corona radiata remains with mature oocyte after:
Definition
ovulation
Term
Usually (#) developing follicle matures, the rest become:
Definition
1, rest become atretic
Term
Ovarian cycle has # phases and lasts # days
Definition
2 phases
28 days
Term
Phases of ovarian cycle:
Definition
follicular phase
luteal phase
Term
follicular pahse
Definition
mensrtation to ovulation
development of follicles
Term
Luteal phase
Definition
ovulation- before menstration
preparation of uterus for implantation
Term
when does ovulation occur?
Definition
halfway through each ovarian cycle
Term
what occurs during ovulation?
Definition
Oocyte exits from one ovary; ovulated oocyte = ovum (still surrounded by corona radiata)
Enters the peritoneal cavity
Is swept into the uterine tube by currents
Term
Which phase occurs after ovulation?
Definition
luteal
Term
during the luteal phase the remaining follicle becomes
Definition
a corpus luteum
Term
Cortus luteum secretes:
Definition
progesterone
Term
progesterone acts to
Definition
prepare for implantation of an embryo
Term
uterine tubes retrieve -- and transport --
Definition
Retrieves ovulated ovum and transports it to uterus
Term
three regions of uterine tubes:
Definition
infundibulum
ampulla
isthmus
Term
infundibulum
Definition
nearest ovary
contains fimbrae- finger projection that surround each ovary
Term
ampulla
Definition
expanded region
Term
isthmus
Definition
Thin region that is continuous with uterus
Term
mucosae layer of the uterine tubes epithelium
Definition
folds
lined with columnar epithelium
Term
Columnar epithelium of the mucosae layer of the uterine tubes has -- which --
Definition
ciliated (predominately) and non ciliated cells
Beating of cilia help propel ovum toward uterus; create currents
Term
Muscularis of the uterine tubes:
Definition
smooth muscle
contraction aids in movement of ovum
Term
Uterine tubes are covered by
Definition
peritonium= supported by mesentery = mesosalpinx
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