Module 18 (Ch27 Reproductive System)

Spermatogenesis takes place in the ________.

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glans penis

 

ejaculatory duct

 

seminiferous tubules

 

prostate gland

seminiferous tubules

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The _______________ is a fluid-filled chamber that characterizes a mature tertiary follicle.

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atrium

 

antrum

 

cervix

 

ductus

antrum

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What are the female gonads called?

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 ova

 

oocytes

 

ovaries

 

oviducts

ovaries

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From what structure does the corpus luteum originate?

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fallopian tube

 

uterine corpus

 

dominant follicle

 

corpus albicans

dominant follicle

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What is the function of the epididymis?

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sperm maturation and storage

 

spermatogenesis

 

provides nitric oxide needed for erections

 

produces the bulk of seminal fluid

sperm maturation and storage

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Leydig cells ________.

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secrete seminal fluid

 

activate the sperm flagellum

 

secrete testosterone

 

support spermatogenesis

secrete testosterone

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Where does fertilization of the egg by the sperm typically occur?

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uterine tube

 

vagina

 

ovary

 

uterus

uterine tube

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Spermatogenesis begins with mitotic division of spermatogonia (stem cells) to produce primary spermatocytes that undergo Meiosis I to create ____ secondary spermatocytes.

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1

 

2

 

3

 

4

2

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The ___________________ glands are glands that secrete a lubricating mucus that cleans and lubricates the urethra prior to and during ejaculation.

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 ductus

 

bulbourethral

 

corpus

 

urinary

bulbourethral

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Which hypothalamic hormone contributes to the regulation of the male reproductive system?

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androgens

 

gonadotropin-releasing hormone

 

follicle-stimulating hormone

 

luteinizing hormone

gonadotropin-releasing hormone

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Why do estrogen levels fall after menopause?

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The pituitary secretes a menopause-specific hormone.

 

There are no follicles left to produce estrogen.

 

The ovaries degrade.

 

The cells of the endometrium degenerate.

There are no follicles left to produce estrogen.

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When do the oogonia undergo mitosis?

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 at the beginning of each menstrual cycle

 

at puberty

 

during fertilization

 

before birth

before birth

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The vulva includes the ________.

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mons pubis, labia majora, and Bartholin’s glands

 

lactiferous duct, endometrium, and bulbourethral glands

 

mons pubis, endometrium, and hymen

 

lactiferous duct, rugae, and hymen

mons pubis, labia majora, and Bartholin’s glands

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The ____________________ are fingerlike projections on the distal uterine tubes.

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fimbriae

 

isthmus

 

epididymis

 

follicle

fimbriae

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What controls whether an embryo will develop testes or ovaries?

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presence or absence of estrogen

 

hypothalamus

 

Y chromosome

 

pituitary gland

Y chromosome

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What are male gametes called?

---

 testosterone

 

ova

 

testes

 

sperm

sperm

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Without SRY expression, an embryo will develop ________.

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no reproductive structures

 

male reproductive structures

 

female reproductive structures

 

male reproductive structures 50 percent of the time and female reproductive structures 50 percent of the time

 

female reproductive structures

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The timing of puberty can be influenced by which of the following?

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genes

 

all of these

 

amount of body fat

 

stress

all of these

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What is a gamete?

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 a haploid somatic cell that contributes genetic material to form an offspring

 

a diploid somatic cell that contributes genetic material to form an offspring

 

a diploid reproductive cell that contributes genetic material to form an offspring

 

a haploid reproductive cell that contributes genetic material to form an offspring

a haploid reproductive cell that contributes genetic material to form an offspring

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Which of the following statements about female external genitalia is accurate?

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 The labia minora encircle the clitoris.

 

The hymen completely covers the vaginal opening in virgins.

 

The Bartholin's glands are located within the urethra.

 

The clitoris is derived from different embryonic tissue than the glans penis.

 The labia minora encircle the clitoris.

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During a vasectomy, a small incision is made into the scrotum. 

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True

 

False

True

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During a vasectomy, the vas deferens is then severed to prevent sperm from travelling. 

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True

 

False

True

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LH is a hormone created by the pituitary gland.

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True

 

False

True

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LH is not involved in the release of the egg.

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True

 

False

Once in the fallopian tube, an egg will either become fertilized by a sperm or dissolved if not fertilized. 

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True

 

False

True

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