Ch. 12 Female Reproductive System Flashcards
The female reproductive system (function):
produce and transport ova
discharge unfertilized ova
OR
nourish/provide place for developing fetus throughout pregnancy (fertilization)
The female reproductive system produces:
ova
female sex hormones
Female sex hormones and their function:
estrogen and progesterone
responsible for development of secondary sex characteristics (breast development and regulation of menstrual cycle)
external genitalia (define)
genitals
sex/reproductive organs visible on outside of body
gestation
Length of time from conception to birth
lactation
Production and release of milk by mammary glands
orifice
Mouth; entrance, or outlet of any anatomical structure
The female reproductive system is composed of:
internal organs of reproduction
external genitalia
The internal organs include:
ovaries
fallopian tubes
uterus
vagina
The external genitalia are collectively known as:
the vulva
external genitalia components:
labia minora labia majora clitoris Bartholin glands mons pubis
mons pubis:
an elevation of adipose tissue covered by skin and coarse pubic hair that cushions the pubis (pubic bone).
The area between the vaginal orifice and the anus is known as
the perineum
The female reproductive organs include:
ovaries
fallopian tubes
uterus
vagina
The female reproductive organs are designed to:
- produce reproductive cells (ova) & sex hormones
- transport ova to fertilization site
- provide favorable environment for developing fetus through pregnancy/childbirth
Hormones play an important role in:
the reproductive process, providing their influence at critical times during preconception, fertilization, and gestation.
Review Figure 12-1
pg 397
ovaries (anatomically)
almond-shaped glands located in the pelvic cavity, one on each side of the uterus.
Each ovary contains:
thousands of tiny, saclike structures called graafian follicles, each containing an ovum.
graafian follicle
saclike structures in the ovaries that contain a ovum
mature follicle
moves to surface of ovary, ruptures, and releases the ripened ovum (ovulation)
corpus luteum
empty follicle that transformed into small yellow mass that secretes estrogen and progesterone
degenerates at end of a nonfertile cycle
Estrogen and progesterone (function):
- regulate menstrual cycle/ menopause
- prepare uterus for implantation of fertilized egg
- help maintain pregnancy
- promote growth of placenta
- development of secondary sex characteristics
Review Figure 12-2
pg 398
fallopian tubes (AKA, anatomically)
AKA oviducts, uterine tubes
extend laterally from superior angles of uterus
fimbriae:
fingerlike projections that create wavelike currents in fluid surrounding ovary to move ovum into uterine tube.
uterus (location)
located in the pelvic area between bladder and rectum
normally tilts forward (anteflexion)
uterus (anatomically, function)
muscular, hollow structure shaped like an inverted pear
contains/nourishes embryo from fertilization to birth
3 parts of uterus:
fundus - upper, rounded part
body - central part
cervix - inferior constricted portion that opens into vagina (AKA neck of uterus or cervix uteri)
vagina (anatomically, location)
from cervix to exterior of body
muscular tube lined with (rugae) and
mucous membrane that give organ an elastic quality
Bartholin glands
lubricate the vaginal orifice during intercourse
vagina (function)
intercourse organ
semen receptor
discharges menstrual flow
passage for fetal birth
clitoris
located anterior to vaginal orifice
composed of erectile tissue with sensory endings
similar in structure to penis but smaller/no urethra.
episiotomy
surgical incision of the perineum during childbirth to enlarge vaginal opening for delivery
Each breast is composed:
adipose tissue 15-20 mammary lobules lactiferous duct nipple areola
lactiferous duct
drain mammary lobules of milk through nipple
Menarche
initial menstrual period
occurs at puberty
During a menstrual cycle, what changes in response to ovarian hormone levels?
uterine endometrium
3 phases of the menstrual cycle:
menstrual (days 1-5)
ovulatory (days 6-14)
postovulatory (15-28)
Menstrual Phase
Days 1-5
Uterine endometrium sloughs off because of hormonal stimulation.
Detached tissue/blood discharge through vagina.
Ovulatory Phase
Days 6–14
day 6 - menstruation stops
endometrium thickens/new tissue built
estrogen levels rise
ova matures in graafian follicles
day 14 - graafian follicle ruptures, releases egg (ovulation)
egg leaves ovary and travels down fallopian tube toward the uterus
Postovulatory Phase
Days 15–28
empty follicle fills with yellow material and becomes corpus luteum:
secretes estrogen and progesterone; stimulates regrowth of endometrium
degenerates as hormones decrease and cycle begins again
uterus during pregnancy
increases:
size/ muscle mass
vascularity/ elasticity of cervix & vagina
mucosa thickness & secretions
houses placenta
births developed fetus
vaginal canal elongates as uterus rises in pelvis
parturition
childbirth
embryo
up to 3 months gestation
fetus
3 months - birth
Toward the end of gestation, the myometrium:
begins to contract weakly at irregular intervals.
View Figure 12-4
pg 401
3 stages of labour:
dilation
expulsions
placental (or afterbirth)
stage of dilation
1st stage of labour
from uterine contractions
to complete dilation of cervix
stage of expulsion
2nd stage of labour
from complete cervical dilation
to birth of baby
placental stage (afterbirth)
final stage of labour
when uterine contractions discharge placenta from uterus
Menopause
end of ovarian activity (~age50)
- absence of menses for 1 year
- reduced hormone production
amenorrhea
absence of menses
The period in which symptoms of approaching menopause occur is:
known as the change of life or the climacteric.
Complete Anatomy Review
pg 402
Complete Anatomy Review
pg 403
The main function of the female reproductive system:
produce hormones
provide structures that support fertilization and development of a developing fetus
The limited functional relationship between the female reproductive system and
Blood, Lymphatic, and Immune
- The female immune system has special mechanisms that inhibit destruction of sperm cells.
- The female reproductive tract secretes enzymes and other substances that inhibit entry of pathogens into the internal reproductive structures.
The limited functional relationship between the female reproductive system and
Cardiovascular
• Estrogens lower blood cholesterol levels and promote cardiovascular health in premenopausal women.
The limited functional relationship between the female reproductive system and
Digestive
• Estrogens have an effect on the metabolic rate.
The limited functional relationship between the female reproductive system and
Endocrine
- Estrogens provide a feedback mechanism that influences pituitary function.
- Estrogens assist in the production of human chorionic gonadotropin (HCG) hormone.
The limited functional relationship between the female reproductive system and
Integumentary
growth/distribution of body hair.
activity of sebaceous glands.
skin texture
fat distribution
The limited functional relationship between the female reproductive system and
Male Reproductive
• The female reproductive system provides the ovum needed to make fertilization by sperm possible.
The limited functional relationship between the female reproductive system and
Musculoskeletal
• Estrogen influences muscle development/ size and bone growth/maintenance, and closure of epiphyseal plates.
The limited functional relationship between the female reproductive system and
Nervous
- Estrogen affects central nervous system development and sexual behavior.
- Estrogen provides antioxidants that have a neuroprotective function.
The limited functional relationship between the female reproductive system and
Respiratory
- Sexual arousal/pregnancy alter breathing rate/depth
* Estrogen good for alveoli
The limited functional relationship between the female reproductive system and
Urinary
• Kidneys dispose of nitrogenous wastes and maintain the homeostatic mechanisms of the mother and fetus.
amni/o
amnion (amniotic sac)
amni/o/centesis
surgical puncture of the amniotic sac
cervic/o
neck; cervix uteri (neck of the uterus)
cervic/itis
inflammation of the neck; cervix uteri (neck of the uterus)
colp/o
vagina
colp/o/scopy
visual examination of the vagina
vagin/o
vagina
vagin/itis
inflammation of the vagina
vagina
colp/o
vagin/o
galact/o
milk
lact/o
milk
milk
galact/o
lact/o
galact/o/poiesis
formation/ production of milk
lact/o/gen
forming, producing or origin of milk
gynec/o
woman/ female
gynec/o/logist
specialist in the study of women/females
hyster/o
uterus (womb)
metri/o
uterus (womb)
uter/o
uterus (womb)
uterus (womb)
hyster/o
metri/o
uter/o
hyster/ectomy
excision/removal of the uterus (womb)
endo/metri/al
pertaining to within the uterus
uter/o/vagin/al
pertaining to the uterus and vagina
mamm/o
breast