(14) Female Genitalia Flashcards
(151 cards)
mons pubis
hair covered fat pad overlying the symphysis pubis
labia majora
rounded folds of adipose tissue forming the outer lips of the vagina
labia minora
thinner pinkish-red folds or inner lips that extend anteriorly to form the prepuce
vestibule
boat-shaped fossa between th elbaia minora
introitus
vaginal opening (may be hidden by hymen in virgins)
perineum
tissue between the Introits and anus
urethral meatus
opens into vestibule between clitorus and vagina
paraurethral (Skene) glands
lie just posterior and adjacent to the meatus on either side of the openings
Bartholin glands
located posteriorly on both sides of the vaginal opening but not usually visible
vagina
musculomembranous tube extending upward and posteriorly between the urinary bladder and urethra and rectum
- its upper 3rd lies at a horizontal plane and terminates in the cup-shaped fornix
- vaginal mucosa lies in transverse folds or rugae
- lies at almost right angle to uterus
uterus
thick-walled fibromuscular structure shaped like an inverted pear
- convex upper surface is the uterine fundus
- body of uterus (corpus) and cylindrical cervix are joined inferiorly at the isthmus
3 layers of uterine wall
perimetric - serial coating from perineum
myometrium - distensible smooth muscle
endometrium - adherent inner coating
cervix
protrudes into vagina, diving the upper vagina into 3 recesses (anterior, posterior, lateral fornices)
ectocervix
vaginal surface of cervix
- seen easily w/ the help of a speculum
- at its center is round, oval, or slit-like depression(the external os of the cervix) which marks the opening into the endocervical canal
- covered by plushy red columnar epithelium that surrounds the os and lines the endocervical cancel, and by shiny pink squamous epithelium continuous with the vaginal lining
cervical puberty changes
- broad band of columnar epithelium encircling os (ectropion) is gradually replaced by squamous epithelium
- squamocolumnar junction migrates toward the os creating the transformation zone: this is the area at risk for dysplasia and tested by pap smear
Fallopian tube
has a fanlike tip (fimbria)
- extended from ovary to each side of the uterus and conducts oocyte from the periovarian peritoneal cavity to the uterine cavity
- normally not palpable
ovaries
almond shaped glands that vary considerably in size but aver approx 3.5x2x1.5cm from adulthood to menopause
-palpable on pelvic exam in 1/2 of women during reproductive years
adnexa
ovaries
tubes
supporting tissues
2 primary functions of ovaries
- production of oocytes
2. secretion of hormones (estrogen, progesterone, testosterone)
increased ovarian hormonal secretion at puberty causes:
growth of uterus and its endometrial lining
enlargement of vagina
thickening of epithelium
development of secondary sex characteristics (breasts, pubic hair)
parietal perineum
extends downward behind uterus into a cul-de-sac called rectouterine pouch (pouch of Douglas)
- can just reach on rectovaginal exam
greater pelvis
- protected by bony wings of ilia
- contains lower abdominal viscera, narrows inferiorly at lesser pelvis which surrounds the pelvic cavity and perineum
pelvic floor
supports pelvic organs
a long of tissue composed of muscle, ligaments, and end-pelvic fascia
helps support the pelvic organs above the outlet of the lesser pelvis
aid in sexual function (orgasm), urinary and fecal continence, stabilizing of connecting joints
consists of pelvic diaphragm and perineal membrane
pelvis diaphragm
separates the pelvic cavity from the perineum
consists of elevator ani and coccygeal muscles which attach to the inner surface of the lesser pelvis