ch 28 REPRODUCTION

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Sperm are moved along the ductus deferens by
peristaltic contractions.
suction.
hydrostatic force.
hydraulic action.
ciliary action.

a

The organ that monitors and adjusts the composition of tubular fluid, recycles damaged spermatozoa, and is the site of sperm maturation is the
seminal gland (seminal vesicle).
prostate gland.
epididymis.
rete testis.
ductus deferens.

c

The organ that carries sperm from the epididymis to the urethra is the
epididymis.
seminal gland (seminal vesicle).
ductus deferens.
corpus cavernosum.
ejaculatory duct

c

Which of the following muscles move the testes toward the body?
the dartos
the tunica muscularis
the cremaster
the biceps brachii
both the cremaster and the dartos muscles

e

The spermatic cord is
ANSWER:
a layer of smooth muscle in the skin of the scrotal sac.
a dense layer of connective tissue that surrounds the testis.
a narrow opening that links the scrotal chamber with the peritoneal cavity.
the external marking of the boundary between the two chambers of the scrotum.
a bundle of tissue that contains the ductus deferens, blood vessels, nerves, and lymphatics that serve the testis.

e

The dense layer of connective tissue that surrounds the testis is called the
ANSWER:
dartos.
tunica albuginea.
median raphe.
epididymis.
spermatic cord.

b

Interstitial cells produce
ANSWER:
androgen-binding protein.
sperm.
androgens.
inhibin.
nutrients.

c

Sperm production occurs in the
ANSWER:
epididymis.
rete testis.
ductus deferens.
seminiferous tubules.
seminal glands (seminal vesicles)

d

Sperm develop from stem cells called
ANSWER:
spermatozoa.
spermatogonia.
secondary spermatocytes.
spermatids.
primary spermatocytes

b

When spermatogonia divide, the daughter cells are called
ANSWER:
spermatozoa.
spermatids.
spermatogonia.
Sertoli cells.
spermatocytes.

e

The process of spermiogenesis produces
ANSWER:
secondary spermatocytes.
spermatozoa.
spermatogonia.
spermatids.
primary spermatocytes.

b

The organ that produces a secretion that contains fructose, prostaglandins, and fibrinogen is the
ANSWER:
preputial gland.
corpus cavernosum.
seminal gland (seminal vesicle).
prostate gland.
bulbourethral gland.

c

The organ that surrounds the urethra and produces an alkaline secretion is the
ANSWER:
preputial gland.
seminal gland (seminal vesicle).
Bartholin's gland.
prostate gland.
bulbourethral gland.

d

The small paired structures at the base of the penis that secrete a thick, alkaline mucus are the
ANSWER:
preputial glands.
prostate glands.
seminal vesicles.
bulbo-urethral glands.
Bartholin glands.

d

he organ that delivers semen into the female reproductive tract is the
ANSWER:
corpus spongiosum.
urethra.
ejaculatory duct.
penis.
corpus cavernosum.

d

The fold of skin that covers the glans penis is the
ANSWER:
corpus cavernosum.
prepuce.
corpus spongiosum.
penile urethra.
ejaculatory duct.

b

The role of FSH in males is to
ANSWER:
stimulate the nurse cells to produce inhibin.
initiate sperm production in the testes.
develop and maintain secondary sex characteristics.
influence sexual behaviors and sex drive.
stimulate the interstitial cells to produce testosterone.

Correct

b

The erectile tissue that surrounds the urethra is the
ANSWER:
corpus spongiosum.
glans penis.
penile urethra.
corpus cavernosum.
membranous urethra.

a

The delicate layer of serous membrane that covers the testis is called the
ANSWER:
tunica albuginea.
lamina propria.
tunica vaginalis.
median raphe.
dartos.

c

Spermatozoa are functionally matured within the
ANSWER:
seminal gland (seminal vesicle).
ductus deferens.
epididymis.
seminiferous tubules.
rete testes.

c

Testosterone is secreted by the
ANSWER:
nurse cells.
adenohypophysis.
interstitial cells.
suprarenal cortex.
hypothalamus.

c

Contraction of the cremaster muscles
ANSWER:
pulls the testes closer to the body cavity.
propels sperm through the urethra.
tenses the scrotal sac.
tenses the scrotal sac and pulls the testes closer to the body cavity.
moves sperm through the ductus deferens.

d

Contraction of the dartos muscle
ANSWER:
propels sperm through the urethra.
produces an erection.
moves sperm through the ductus deferens.
initiates seminal emission.
tightens the scrotal sac.

e

he middle piece of the sperm contains the ________ in a spiral arrangement.

mitochondria

the ________ is the part of the sperm that contains the DNA.

head

Primary spermatocytes are produced by mitosis of cells called ________.

spermatagonia

The hormone that stimulates spermatogenesis in males is ________.

FSH

The interstitial cells in the testes produce _______

testosterone

The broad ligament is
ANSWER:
a structure that anchors the ovary to the rectouterine pouch.
an extensive mesentery that encloses the ovaries, uterine tubes, and uterus.
a structure that extends from the lateral surface of the ovary to the pelvic wall.
a pocket formed between the posterior wall of the uterus and the anterior surface of the rectum.
a thickened fold of mesentery that supports and stabilizes the position of the ovary.

b

The organ that transports the ovum to the uterus is the
ANSWER:
vagina.
uterosacral ligament.
myometrium.
infundibulum.
uterine tube.

e

The round ligaments extend from the
ANSWER:
base of the uterus and vagina to the lateral walls of the pelvis.
cervix of the uterus to the vagina.
lateral margins of the uterus, through the inguinal canal to the external genitalia.
lateral surface of the uterus to the anterior surface of the sacrum.
body of the uterus to the fundus.

c

The thick muscular layer of the uterus is the
ANSWER:
endometrium.
sarcometrium.
uterometrium.
perimetrium.
myometrium.

e

The surge in luteinizing hormone that occurs during the middle of the ovarian cycle triggers
ANSWER:
menopause.
follicle maturation.
menstruation.
ovulation.
atresia.

d

A rise in the blood levels of follicle-stimulating hormone at the beginning of the ovarian cycle is responsible for
ANSWER:
ovulation.
menstruation.
follicle maturation.
atresia.
menopause.

c

During the proliferative phase of the menstrual cycle,
ANSWER:
the endometrium finalizes the preparation for implantation.
the functional zone of the endometrium is restored.
the fertilized ovum implants.
the old functional layer is sloughed off.
the corpus luteum is forming.

b

During the secretory phase of the menstrual cycle
ANSWER:
progesterone levels are high.
the corpus luteum is formed.
the fertilized ovum implants.
endometrial glands enlarge.
All of the answers are correct.

Correct

e

The uterine phase that develops because of a fall in progesterone levels is
ANSWER:
the proliferative phase.
the follicular phase.
the menses.
the secretory phase.
the luteal phase.

c

The pigmented skin that surrounds the nipple is the
ANSWER:
peripapilla.
zona pellucida.
fornix.
zona reticularis.
areola.

e

The principal hormone secreted by the corpus luteum is
ANSWER:
FSH.
LH.
luteosterone.
estrogen.
progesterone.

e

Menstruation is triggered by a drop in the levels of
ANSWER:
FSH.
LH.
inhibin.
relaxin.
progesterone.

e

the granulosa cells of developing follicles secrete
ANSWER:
estradiol.
LH.
FSH.
progesterone.
GnRH.

a

The primary follicle develops from the
ANSWER:
ovarian hilum.
granulosa cells.
ovarian follicles.
ovarian stroma.
primordial follicle.

e

The portion of the uterine tube that ends in fingerlike fimbriae is the
ANSWER:
proximal segment.
infundibulum.
isthmus.
distal segment.
ampulla.

b

After ovulation, the ovary secretes
ANSWER:
estrogen.
luteinizing hormone.
luteinizing hormone, estrogen, and progesterone.
progesterone.
both estrogen and progesterone.

e

The hormone that stimulates ovulation is _______

LH

The main portion of the uterus is called the corpus or

body

The ________ is the inner lining of the uterus.

endometrium

female reproductive hormone:

Is most abundant
Has most pronounced effects on target tissues
Is dominant hormone prior to ovulation

estradiol

Early in follicular phase of ovarian cycle
Estrogen levels are ___________

low

stimulates FSH secretions and LH synthesis

androgens
estrogens
protestins
inhibin
GnRH
LH
FSH

gnRH

in males stimulates spermatogenesis females stimulates follicle development, estrogen production, oocyte maturation

androgens
estrogens
protestins
inhibin
GnRH
LH
FSH

fsh

in males stimulates interstital cells to secrete testosterone
females stimulates ovulation, formation of corpus luteum and progestin secretion

androgens
estrogens
protestins
inhibin
GnRH
LH
FSH

LH

to establish and maintain male secondary sex characteristics and sexual behavior

androgens
estrogens
protestins
inhibin
GnRH
LH
FSH

androgens

stimulate LH secretion, establish maintain secondary female charac.

androgens
estrogens
protestins
inhibin
GnRH
LH
FSH

estrogens

stimulate endometrial growth and glandular secretions reduce frequences of GnRh pulses

androgens
estrogens
protestins
inhibin
GnRH
LH
FSH

progestins

inhibits secretion of FSH

androgens
estrogens
protestins
inhibin
GnRH
LH
FSH

inhibin

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