Bio 152: Wiley Chapter 28

Progesterone and estrogen production shifts from the corpus luteum to the placenta during the ninth week of pregnancy. (T/F)

True

The female reproductive cycle includes events that occur in both the uterus and the ovary (T/F)

True

The ovarian cycle revolves around the release of the secondary oocyte. (T/F)

True

hCG is detectable in a pregnant woman's blood after 8 days post fertilization. (T/F)

True

The corpus luteum may 1. degenerate into a corpus albicans if fertilization did not occur. 2. be rescued from degeneration by HCG if fertilization occurred. 3. continue to produce estrogen until the next follicle is ovulated.

1 and 2 are correct

The ovaries are held in position in the pelvic cavity by the 1. ovarian ligament. 2. suspensory ligament. 3. uterine tubes.

1 and 2 are correct

Which part of the uterus opens into the vagina? Urethra Cervix Uterine tubes Ovaries Inguinal canal

Cervix

The ___________ is/are the longest of the male reproductive system ducts. straight tubules rete testes ductus epididymis ductus deferens ejaculatory duct

Ductus epididymis

Which structure is formed by the union of the duct from the seminal vesicle and the ampulla of the vas deferens? Spermatic cord Inguinal canal Ejaculatory duct Urethra Prostate

Ejaculatory duct

FSH is release from the anterior pituitary gland and stimulates follicular growth, which in turn inhibits estrogen production. (T/F)

False

Human choriogonadotropin allows the corpus luteum to degenerate.(T/F)

False

Sperm comprise most of the volume of semen (T/F)

False

The acrosome of a sperm contains the mitochondria needed for ATP production (T/F)

False

The uterine tubes form a direct connection between the ovaries and the uterus (T/F)

False

Which hormone inhibits the release of FSH from the pituitary gland? LH Inhibin Relaxin GnRH hCG

Inhibin

Which hormone stimulates Leydig cells to secrete testosterone? GnRH LH Inhibin DHT None of these choices

LH

Which hormone triggers ovulation? GnRH Progesterone Estrogen LH FSH

LH

The ovarian phase between the end of menstruation and beginning of ovulation is the Preovulatory phase Postovulatory phase Secretory phase Menstrual phase Proliferative phase

Preovulatory phase

Which hormone is secreted by the corpus luteum after ovulation? GnRH LH HGH Progesterone FSH

Progesterone

After ovulation, the corpus luteum releases _____ to prepare the endometrium for implantation. LH. FSH. progesterone and estrogen All of these.

Progesterone and estrogen

The straight tubules in the testis lead into the Efferent ducts Rete testis Epididymis Afferent ducts Ductus epididymis

Rete testis

What is produced by the ovaries? Secondary oocytes, estrogen and progesterone Primary oocytes, estrogen and testosterone Tertiary oocytes, insulin and estrogen Primary oocytes, insulin and estrogen Secondary oocytes, progesterone and cortisol

Secondary oocytes, estrogen and progesterone

Androgen-binding protein binds to testosterone and maintains high levels of the hormone near the spermatogenic cells. (T/F)

True

During pregnancy, hormones increase the flexibility of the pubic symphysis. (T/F)

True

GnRH is secreted by the hypothalamus. (T/F)

True

Hormones, released by the hypothalamus, orchestrate the ovarian and uterine cycles. (T/F)

True

LH binds to receptors on Leydig cells to stimulate the secretion of testosterone. (T/F)

True

The last part of the preovulatory phase is characterized by a.) positive feedback caused by high levels of estrogen acting on cells releasing GnRH. b.) positive feedback caused by high levels of progesterone acting on cells secreting estrogen. c.) negative feedback caused by high levels of estrogen acting on cells releasing GnRH. d.) negative feedback caused by high levels of progesterone acting on cells secreting estrogen. e.) negative feedback from high levels of progesterone acting on cells releasing GnRH.

a

A zygote is another name for secondary oocyte a diploid fertilized ovum the mature ovarian (Graffia) follicle the same as polar body the same as an ovum

a diploid fertilized ovum

Fertilization of an ovum normally occurs in the ovary. infundibulum of the uterine tube. ampulla of the uterine tube. isthmus of the uterine tube. fundus of the uterus.

ampulla of the uterine tube

The duct of each seminal vesicle fuses with the ejaculatory duct ampulla of the vas deferens the ducts of the prostate and bulbourethral glands urethra epididymis

ampulla of vas deferens

The secretory phase of the uterine cycle is associated with a.) increased secretion of progesterone and formation of the corpus albicans. .b.) increased secretion of progesterone and formation of the corpus luteum. c.) increased secretion of luteinizing hormone and rupture of the mature follicle. d.) increased secretion of estrogen and maturation of the secondary follicle. e.) increased secretion of follicle stimulating hormone and ovulation.

b

When is the stratum functionalis the thickest? a.) in the preovulatory phase b.) at ovulation c.) in the post ovulatory phase d.) in the menstrual phase e.) the thickness of the stratum functionalis does not change

c

Which is NOT a function of estrogens? a.) promoting development and maintenance of secondary sex characteristics. b.)increasing protein anabolism. c.) increasing blood cholesterol. d.) inhibiting release of GnRH by the hypothalamus. e.) inhibiting secretion of FSH and LH by the anterior pituitary.

c

Which of the following correctly traces a sperm from its formation to ejaculation? (Note: not all structures are listed) a.) straight tubules, rete testes, seminiferous tubules, epididymis, ductus deferens, ejaculatory duct b.) straight tubules, rete testes, epididymis, seminiferous tubules, ductus deferens, ejaculatory duct c.) seminiferous tubules, straight tubules, rete testes, epididymis, ductus deferens, ejaculatory duct d.) seminiferous tubules, rete testes, epididymis, straight tubules, ductus deferens, ejaculatory duct e.) seminiferous tubules, rete testes, straight tubules, epididymis, ductus deferens, ejaculatory duct

c

Which of the following statements about accessory sex glands is CORRECT? a.) Seminal vesicles produce about 25% of the volume of semen. b.) Seminal vesicles help to decrease damage to sperm by secreting mucus. c.) Bulbourethral glands secrete an acidic fluid that contributes about 60% of the volume of semen that contributes to sperm motility and viability. d.) The prostate secretes an acidic fluid containing several substances including citric acid, which may be used for ATP production. e.) The prostate secretes an alkaline fluid containing fructose, and helps to neutralize the acidic environment of the male and female reproductive tracts.

d

Which structure helps regulate the temperature of the testes? Dartos muscle Tunica vaginalis Tunica albuginea Seminiferous tubules Both Dartos muscle and Seminiferous tubules

dartos muscle

Which cells secrete testosterone? Oogonia Spermatogenic cells Sertoli cells Leydig cells Chief cells

leydig cells

Which structure is the site of sperm production? Vas deferens Raphe Epididymis Seminiferous tubules Albuginea

seminiferous tubules

The function of the epididymis is Absorption of calcium Sperm maturation Provide nutrition to sperm Produce sperm Spermatid storage

sperm maturation

GnRH stimulates the release of all of the following hormones except follicle-stimulating hormone. luteinizing hormone. testosterone. none of these.

testosterone