Key Terms: Test1 Flashcards
external genitalia
also known as the vulva or the pudenum
consists of the mons pubis, labia minora, clitoris, urethral opening, and vestibule of the vagina
false pelvis
part of the pelvic cavity above the pelvic brim
False pelvis communicates with the abdominal cavity superiorily and with the pelvic cavity inferiorily
true pelvis
also known as the lesser or minor pelvis
cavity of the true pelvis is continuous at the pelvic brim with the cavity of the major pelvis
pelvic cavity
posterior wall formed by sacrum and coccyx
margins of the posterolateral wall-formed by the piriforms and coccygeus muscles
anterolateral walls-formed by hip bones and obturator internus muscles
lower margin-formed by levator ani and coccygeus muscles
coccygeus muscles
muscles that form the floor of the pelvis
iliacus muscles
paired muscles that form the lateral wall of the pelvis
ilipectineal line
bony ridge of the inner surface of the ilium and pubic bones
divides the true pelvis and the false pelvis
levator ani
pair of muscles that form the floor of the pelvis
obtuator internus muscle
triangular sheets of muscle that arise from the anterolateral pelvic wall and surround the obturator foramen
piriformis muscle
flat, triangular muscles that arise from the anterior sacrum and pass through the greater sciatic notch on the posterior aspect of the greater trochanter of the femur
psoas major muscle
originate at the transverse process of the lumbar vertebrae and descend inferiorly through the false pelvis on the pelvic sidewalls
striations
parallel longitudinal lines seen in muscle tissue
appear as hyperechoic parallel lines running in the long axis of the hypoechoic muscle tissue
anteverted
position of the uterus
fundus is tipped slightly forward
most common
anteflexed
position of uterus
the fundus bends forward toward the cervix
broad ligament
broad fold of peritoneum draped over the fallopian tubes, uterus, and ovaries
contain the uterine blood vessels and nerves
cardinal ligament
wide bands of fibromuscular tissue arising from the lateral aspects of the cervix and inserting along the lateral pelvic floor
estrogen
hormone secreted by the theca interna and granulosa cells of the ovarian follicle that stimulates the development of female reproductive structures
promotes the growth of endometrial tissue during proliferative phase
mesosalpinx
upper portion of the broad ligament that covers the fallopian tubes
ovarian ligament
extends from the inferior and/or medial pole of the ovary to the uterine cornua
ovum
female egg released from the ovary during ovulation
perimetrium
serous membrane covering the uterus
progesterone
hormone produced by the corpus luteum that helps prepare and maintain the endometrium for arrival and implantation of an embryo
rectouterine pouch
area in the pelvic cavity between the rectum and the uterus that is likely to accumulate free fluid
also known as the pouch of Douglas
retroflexed
position of the uterus
fundus bends posteriorly upon the cervix
retroverted
position of the uterus
entire uterus is tipped posteriorly so that the angle formed between the cervix and the vaginal canal is greater than 90o
round ligament
originate at the uterine cornua
holds uterus forward in its anteverted position
space of retzius
between the anterior bladder wall and the pubic symphysis
contains extraperitoneal fat
suspensory ligament
extend from the infundibulum of the fallopian tube and the lateral aspect of the ovary to the lateral pelvic wall
uterosacral ligament
posterior part of the cardinal ligament that extends from the cervix to the sacrum
vesicouterine pouch
area in the pelvic cavity between the urinary bladder and the uterus
corpus luteum
yellow body formed from the Graafian follicle after ovulation that produces estrogen and progesterone
amenorhhea
absense of menstruation
dysmenorrhea
pain with menstruation
FSH-follicle stimulating hormone
hormone secreted by the anterior pituitary gland that stimulates the growth and maturation of graafian follicles in the ovary
gonadotropin
hormonal substance that stimulates the function of the testes and the ovaries
gonadotropin-releasing hormone
secreted by the hypothalamus that stimulates the release of follicle-stimulating hormone and lutenizing hormone by the anterior pituitary gland
luteinizing hormone
secreted by the anterior pituitary gland
It stimulates ovulation and induces lutenization of the ruptured follicle to form corpus luteum
menarche
generally happens between 11 and 13 yrs of age
marks the beginning of menstruation
menopause
cessation of menstruation
menses
flow of blood and cellular debris that occurs during menstruation
menorrhagia
abnormally heavy or long menstrual periods
oligomenorrhea
abnormally light menstrual periods
premenarche
time in young girls before they begin menstruating
(physiologic status of prepuberty-the time before the onset of menses)
adenexa
structure or tissue next to or near another related structure
coronal plane
refers to a horizontal plane through the longitudinal axis of the body to image structures from anterior to posterior
endometrium
inner lining of the uterine cavity
appears echogenic to hypoechoic on ultrasound , depending on the menstrual cycle
introitis
opening or entrance into a canal or cavity
(ex. vagina)
myometrium
middle layer of the uterine cavity
appears very homogenous on ultrasound
parity
number of live births
translabial
across, or through, the labia
transperineal
across, or through, the perineum
cornu
any hornlike projection
refers to the fundus of the uterus, where the fallopian tube arises
arcuate vessels
small vessels found along the periphery of the uterus
internal os
inner surface of the cervical os
pourcelot resistive index
a doppler measurement that takes the highest systolic peak minus the highest diastolic peak divided by the highest systolic peak