Coordinated Functions Flashcards
functions of the reproductive system
- production and transport of gametes
- production of sex hormones
- organ system responsible for the perpetuation of a species or production of a new organism
produces egg cells (ova) and sex hormones
ovary
conducts the egg cell (ovum) toward the uterus
fallopian tube (oviduct)
houses the developing fetus
uterus
opening of the uterus
cervix
tube that links the ovary to the uterus
fallopian tube (oviduct)
the specific site where fertilization of the human egg takes place
fallopian tube (oviduct)
receives the penis during copulation and serves as the birth canal
vagina
system of sex organs within an organism which work together for the purpose of sexual reproduction
reproductive system
basic units of female reproductive biology, each of which is composed of roughly spherical aggregations of cells found in the ovary
ovarian follicles
lining of the uterus
endometrium
stage of growth and maturation that produces a mature egg cell
(follicle grows to full maturity)
follicle stage
ripe follicle releases an ovum
ovulation
secretes progesterone (and estrogen) which thickens the uterine lining in preparation for the implantation of the embryo
luteal stage
lining of the uterus is sloughed off and flows out of the body
menstrual flow stage
menstrual cycle SIMPLE timeline
Follicle Stage
Ovulation
Luteal Stage
Menstrual Flow Stage
Release of FSH (Follicle-stimulating hormone) and LH (Lutenizing hormone) -> — matures
egg
Follicle secretes estrogen -> uterine lining ——–; – increases
thickens; LH
Presence of LH (Lutenizing hormone) -> follicle ruptures and releases mature egg
ovulation
increase in LH -> ——– enlarges and fills with blood vessels (become —— —— or “yellow body”)
follicle; corpus luteum
———— -> further thickening of uterine wall
progesterone
If fertilization does not occur (an egg is not fertilized), what disintegrates and degenerates?
corpus luteum (“yellow body”)
If fertilization does not occur (an egg is not fertilized), what collapses?
uterine lining
discharge of dead tissue and unfertilized egg
menstruation
the follicle becomes this structure once the egg cell is released from the ovary
corpus luteum (“yellow body”)
Low FSH and LH levels -> low ————- and ——– levels
progesterone; estrogen
what controls hormonal secretion?
(+) positive feedback
(-) negative feedback
a mechanism that STIMULATES further secretion of hormones
(+) positive feedback
arising concentration of a secreted hormone STIMULATES further secretion
(+) positive feedback
arise in the concentration of a secreted hormone INHIBITS (prevents) further secretion
(-) negative feedback
hormone that triggers the release of FSH and LH by another structure
pituitary hormone