Chapter 27 Anatomy Male Reproductive

Which of the following is the site where sperm are stored until they are ejaculated?

tail of the epididymis
body of the epididymis
rete testis
seminiferous tubule

tail of the epididymis

If a male undergoes a vasectomy, which of the following can no longer take place?

-passage of sperm cells from the rete testes to the epididymis duct
-passage of sperm cells from the seminiferous tubules to the rete testes
-passage of sperm cells from the epididymis to the penis
-passage of sperm cells from the epididymis duct to the epididymis tail

-passage of sperm cells from the epididymis to the penis

Which of the following is/are contained within the spermatic cord?

testicular arteries and veins
epididymis
seminiferous tubules
rete testis

testicular arteries and veins

Viable sperm production is optimal below the body’s core temperature.

True
False

True

Sperm is produced in the __________.

ductus deferens
epididymis
seminiferous tubules
ejaculatory duct

seminiferous tubules

Why are the male testes located in the scrotum, outside the body?

-The testes develop better outside the body.
-Spermatogenesis is temperature sensitive.
-Their external location is necessary for penile development.
-It helps the male secondary sexual characteristics develop.

-Spermatogenesis is temperature sensitive

Which portion of the penis is removed during circumcision?

glans penis
prepuce (foreskin)
bulb of the penis
crus of the penis

prepuce (foreskin)

Which of these male accessory ducts transports both sperm cells and urine?

ejaculatory duct
ductus (vas) deferens
epididymis
urethra

urethra

Which of these does NOT empty materials into the area of the prostatic urethra?

prostate
ductus (vas) deferens
bulbo-urethral gland
seminal gland

bulbo-urethral gland

Which male reproductive structure is NOT correctly matched with its function?

seminal vesicles: produce semen
bulbourethral gland: neutralize urethra before ejaculation
epididymis: produce sperm
ductus deferens: carry sperm toward ejaculation

epididymis: produce sperm

What is the function of meiosis?

-to produce cells with double the chromosome number of the original cell
-to produce genetically identical cells through the two nuclear divisions
-to produce cells with half the chromosome number of the original spermatogonium or oogonium
-to produce four cells, each with identical chromosomes

to produce cells with half the chromosome number of the original spermatogonium or oogonium

Which of these cells would contain 23 unpaired chromosomes?

spermatogonia
secondary spermatocytes
primary spermatocytes
early spermatids

early spermatids

Which of the following cells remains at the basal lamina to continue the pool of dividing germ cells?

type A daughter cells
type B daughter cells
primary spermatocytes
secondary spermatocytes

type A daughter cells

The number of chromosomes in a human gamete is __________; this is referred to as a __________ chromosome number.

23; haploid
23; diploid
46; haploid
46; diploid

23; haploid

Which portion of the sperm contains the enzymes needed to penetrate the oocyte?

midpiece
acrosome
tail
head

acrosome

What is the product of spermatogenesis?

capacitation of sperm
formation of semen
formation of haploid sperm
activation of spermatids

formation of haploid sperm

What is the function of the blood-testis barrier?

-to provide only select nutrients to the developing sperm
-to ensure that semen contains only sperm and seminal fluid
-to filter out male sex hormones
-to prevent activation of the immune system of the male against the developing sperm

-to prevent activation of the immune system of the male against the developing sperm

What is the testicular target for follicle-stimulating hormone (FSH)?

interstitial endocrine cells (Leydig cells)
spermatogonia
spermatozoa
sustentocytes (Sertoli cells)

sustentocytes (Sertoli cells)

Which hormone promotes the formation of secondary sex characteristics such as the appearance of pubic, axillary, and facial hair; enhanced hair growth on the chest; and a deepening voice?

-testosterone
-follicle-stimulating hormone (FSH)
-gonadotropin-releasing hormone (GnRH)
-luteinizing hormone (LH)

-testosterone

The release of __________ encourages sustentocytes to release __________.

-luteinizing hormone; testosterone
-inhibin; testosterone
-luteinizing hormone; androgen-binding protein
-follicle-stimulating hormone; androgen-binding protein

follicle-stimulating hormone; androgen-binding protein

In males, which of the following includes the correct target and result of LH stimulation?

-interstitial cells: androgen secretions
-sustentacular cells: increase testosterone
-sustentacular cells: increase spermatogenesis
-interstitial cells: ABP secretions

-interstitial cells: androgen secretions