Anatomy of the Female Reproductive System Flashcards
the genetic sex of a female is determined at
time of fertilization from the X chromosome that is carried by the sperm
the female gonads develop from
mesoderm in the embryo
absence of Y chromosome and its sex determining gene allows
undifferentiated gonads to develop into ovaries
the female reproductive ducts develop from
the paramesonephros in the embryo
absence of testosterone prevents
mesonephros from developing
absence of Muellerian-inhibiting factor allows
Muellerian ducts to develop
the female external genitalia develop from
the genital tubercle
in formation of external genitalia the absence of testosterone prevents
lateral buttresses and glans from enlarging and prevents labiosacral swellings from fusing together
the ovaries are
the female gonads
ovaries are
cytogenic because they produce new oocytes within follicles
ovaries function as
endocrine glands to produce estrogens and progesterone
and ovary is roughly the size and shape of
an almond and it is suspended in the pelvic cavity by a collection of ligaments
attaches to broad ligament at back of uterus by
mesovarium
ovarian ligament attaches
medial surface to uterus
suspensory ligament attaches
lateral surface to wall of pelvic cavity
There is or is not a direct connection between an ovary and the female reproductive tract
NOT
blood vessels and nerves enter through
hilus
a cross section of an ovary would show
several layers
germinal epithelium
covers surface of ovary (flat layer)
tunica albuginea
is inside germinal epithelium and is made of connective tissue of ovary
stroma is
at center of ovary and is made of connective tissue
cortex of stroma is
involved in egg development and filled with fine strands of tissue
medulla of stroma contains
ovarian blood vessels, lymph vessels, and nerves
during embryonic development, primordial germ cells
migrate to a developing ovary, which causes the primary sex cords to grow into the germinal epithelium
during embryonic development cortex
expands, medulla contracts, primary sex cords degenerate
ovary is homologous to
a testis
cells in medulla that surround primordial germ cell become
follicle cells, which are homologous to interstitial cells of Leydig
primordial germs cells become
oogonia
oogonia are homologous to
spermatogonia
homologous means
arisen from same embryonic tissue
the uterine (fallopian) tubes contain
smooth muscle and they are lined with cilia and they extend laterally from an ovary toward the uterus
infundibulum
the distal, funnel-shaped end of a fallopian tube
fimbriae
“catch” oocytes and are fingerlike
beyond the infundibulum is
an enlarged ampulla, where fertilization usually takes place
the ampulla leads to
a short, narrow isthmus that attaches to the wall of the uterus
the uterus is
a hollow, muscular organ roughly the size and shape of a pear and it is located between the urinary bladder and the rectum
uterus is held in place by
broad ligaments that attach it to either side of the pelvic cavity
uterosacral ligaments attach
uterus to sacrum
round ligaments attach
uterus to external genitalia