27.3

All of these are functions of estradiol EXCEPT causes accumulation of electrolytes and water in endometrium causes closure of epiphyseal plates causes mammary gland development during pregnancy induces progesterone receptors in endometrium maintains reproductive organs after puberty

causes accumulation of electrolytes and water in endometrium

The mid-cycle surge in LH causes all of these EXCEPT: corpus luteum atrophies estrogen secretion is temporarily suppressed meiosis resumes in the oocyte ovulation is initiated

corpus luteum atrophies

Which phase of the ovarian cycle occurs before ovulation? follicular luteal

follicular

During the secretory phase, the corpus luteum secretes ________ levels of estrogen and ________ levels of progesterone. high; high high; low low; high low; low

high; high

The activity of the ovary is directly controlled by hormones from the hypothalamus hormones from the anterior pituitary hormones from the uterus

hormones from the anterior pituitary

The activity of the uterus is directly controlled by hormones from the hypothalamus hormones from the anterior pituitary hormones from the ovaries

horomones from the ovaries

What hormone causes the endometrial glands to fill with glycogen and endometrial blood vessels to become more numerous? estrogen progesterone FSH LH chorionic gonadotropin

progesterone

Which hormone reduces uterine contractility? growth hormone prolactin inhibin progesterone estrogen

progesterone

Which of the following does NOT occur during the follicular phase of the ovarian cycle? the proliferative phase of the uterine cycle FSH and LH secretion estrogen secretion progesterone secretion

progesterone secretion

Which hormone causes decreased contractility in the uterus? estrogen GnRH inhibin progestin

progestin

During which phase of the uterine cycle does cervical mucus thin? menstrual proliferative secretory

proliferative

During which phase of the uterine cycle does the endometrium increase MOST in thickness? menstrual proliferative secretory

proliferative

Which phase of the uterine cycle is controlled mainly by estrogens? menstrual proliferative secretory

proliferative

All of these are functions of estradiol EXCEPT causes development of secondary sex characteristics at puberty causes growth and maturation of reproductive organs during puberty facilitates entry of sperm into uterus and transport to oviduct reduces contractility of the uterus stimulates growth of myometrium and endometrium

reduces contractility of the uterus

Estrogen does all of these EXCEPT facilitate the entry of sperm into the uterus promotes closure of the epiphyseal plates stimulates secretory tissue development in the mammary glands reduces uterine contractility

reduces uterine contractility

During which phase of the uterine cycle do endometrial cells store glycogen? menstrual proliferative secretory

secretory

During which phase of the uterine cycle does cervical mucus thicken? menstrual proliferative secretory

secretory

Which phase of the uterine cycle is controlled mainly by progestin? menstrual proliferative secretory

secretory

During the menstrual phase of the uterine cycle ovulation is occurring estrogen and progesterone levels reach their highest levels the luteal phase of the ovarian cycle is just beginning uterine blood vessels constrict in response prostaglandins

uterine blood vessels constrict in response prostaglandins

Progesterone secretion is low during the ovarian luteal phase uterine proliferative phase uterine secretory phase

uterine proliferative phase

During the menstrual phase of the uterine cycle, prostaglandin secretion causes an increase in the size and surface area of endometrial blood vessels and glands the accumulation of glycogen in the endometrial gland cells vasoconstriction of the endometrial blood vessels

vasoconstriction of the endometrial blood vessels

During the first part of the ovarian cycle, the follicle secretes low levels of estrogen, which suppresses FSH secretion which causes development of the corpus luteum which causes ovulation which triggers a surge in LH secretion

which suppresses FSH secretion

Ovulation occurs along with peak concentrations of estrogen FSH LH progesterone

LH

The female sex reflexes acting via ___ cause ___. - parasympathetic signals to arterioles in erectile tissue of vagina, labia and clitoris; vasodilation and vasocongestion - sympathetic signals to uterus; contraction of myometrium - somatic signals to pelvic muscles; rhythmic contractions - all of the above

all

LH is responsible for reinitiating meiosis in the oocytes of developing follicles halting estrogen synthesis by the follicular cells triggering ovulation formation of the corpus luteum all of these

all of these

GnRH is secreted from the _________ and stimulates ________ secretion. anterior pituitary; FSH anterior pituitary; ADH posterior pituitary; FSH posterior pituitary; LH

anterior pituitary; FSH

As the follicle reaches its mature size it secrets very high levels of estrogen, which causes an immediate increase in progesterone secretion directly causes development of the corpus luteum directly causes ovulation directly triggers a surge in LH secretion

directly triggers a surge in LH secretion

Part of which layer dissolves and is shed at the end of a uterine cycle? endometrium myometrium perimetrium none of these

endometrium

Which ovarian hormone is secreted during the follicular phase of the ovarian cycle? FSH estrogen progesterone LH

estrogen

What hormone(s) is/are secreted from the corpus luteum? FSH and LH estrogen and progesterone LH and progesterone inhibin and FSH

estrogen and progesterone

T/F Luteinizing hormone and follicle-stimulating hormone are secreted by the gonads.

false

T/F Under the influence of estrogen from developing follicles, FSH and LH secretion BOTH continue to decline THROUGHOUT the follicular phase.

false

T/F the release of GnRH inhibits the secretion of FSH

false

Which phase of the ovarian cycle occurs after ovulation? follicular luteal

luteal

Which phase of the uterine cycle is caused by a drop in estrogen and progestin secretion? menstrual proliferative secretory

menstrual

Menstruation is caused by an increase in estrogen and progestin levels increase in FSH and LH both of the above none of the above

none

During the proliferative phase of the uterine cycle the ovary is in the luteal phase menstruation is occurring the main ovarian hormone being secreted is estrogen no secretion of LH occurs

the main ovarian hormone being secreted is estrogen

T/F A high level of estrogen stimulates LH secretion and initiates the LH surge.

true

T/F Both males and females produce testosterone and estrogen.

true

T/F High levels of estrogen directly stimulate the LH-secreting cells of the anterior pituitary.

true

T/F Progesterone causes the cervical mucus to become thick and sticky.

true

T/F Secretion of progesterone inhibits kisspeptin secretion.

true

T/F the corpus luteum develops from old follicular cells.

true

T/f Low levels of estrogen inhibit the secretion of LH and kisspeptin in negative-feedback fashion.

true