CH 28.1-28.2
What is the hormone that directly stimulates testosterone production
LH
What is the term for the organs that produce gametes and hormones
gonads
Which reproductive gland encircles the urethra as it leaves the bladder and produces an acidic fluid that contributes to semen
prostate gland
The functions of the sustentacular cells (nurse cells) in the male include all of the following except
Secretion of testosterone
What is produced by spermiogenesis
Sperm
For a sperm to be able to fertilize an egg, it must undergo capacitation, which does not involve what process
Sperm mixing with secretions from the bulbourethral gland
Which of the following is accurate regarding the events of fertilization
Two haploid gametes combine to make the diploid zygote
Which of the following is not found in seminal fluids
smegma
The male gonad is the
testis
Which of the following structures are not found in the spermatic cord
Dartos muscle and cremaster muscle
For normal human reproduction to occur, which of the following organ systems would not necessarily have to function normally
Digestive system
The body of the spermatic cord is a structure that includes which of the following
Ductus deferens, blood vessels, nerves, and lymphatics
Which of the following do(es) NOT contribute to semen production
Endometrial glands
Which of the following is true regarding meiosis
Homologous chromosomes separate during meiosis I, and sister chromatids separate during meiosis II
Which of the following is not consistent with benign prostatic hyperplasia (BPH)
Occurs as estrogen levels drop
What is the function of the dartos and cremaster muscles
Regulating the temperature of the testes
Which of the following is not true of testosterone?
Testosterone is a protein.
Seminiferous tubules and newly produced sperm are separated from the general circulation and the immune system by all of the following except
blood brain barrier
Which of the following terms is not specifically used to describe egg and sperm
gonads
What hormone produced by the nurse cells depresses the formation of FSH and provides a negative feedback mechanism for the control of spermatogenesis
inhibin
Which hormone acts to reduce the rate at which the anterior pituitary produces FSH
inhibin
What is the function of the ducts of the reproductive systems
Receiving and transporting gametes
Which cells in the seminiferous tubules regularly undergo mitosis
Spermatogonia
Which of the following states the correct order in which are cells produced in spermatogenesis
Spermatogonium a primary spermatocyte a secondary spermatocyte a spermatid a sperm
Which of the following does not occur during spermiogenesis
The mitochondria and Golgi apparatus are packaged into the head of the sperm.
Which of the following statements about the bulbourethral glands is incorrect
They contribute approximately 25 percent of the semen volume.
The enzymes needed to bore into the corona radiata reside in which portion of the sperm?
acrosomal cap
Enzymes that help the sperm penetrate the ovum, or egg, are in the ________ of the sperm cell
acrosome
When sperm become motile and fully functional, they have undergone
capacitation
The secretions of the seminal vesicles are discharged into the _________________.
ejaculatory duct
The dense layer of connective tissue that directly covers the testes is the
tunica albuginea
The three masses of erectile tissue that compose the body of the penis are
two cylindrical corpora cavernosa and a slender corpus spongiosum
Which muscle is part of the spermatic cord
Cremaster muscle
The hormone that promotes spermatogenesis along the seminiferous tubules is
FSH
Which of the following is not a peripheral effect of testosterone
Facilitates both spermatogenesis and spermiogenesis
Which cells in the testes are responsible for producing testosterone and other androgens
Interstitial cells
Which of the following is not true of the epididymis
It connects the ductus deferens with the seminal vesicle.
Which statement about oogenesis mentions the one characteristic that is the same in spermatogenesis and oogenesis
Meiosis in oogenesis reduces the chromosome number by half
Which correctly describes mitosis and meiosis
Mitosis creates genetically identical cells, whereas meiosis creates genetically unique cells
Men over the age of 50 are periodically screened for prostate cancer by measuring the blood for elevated levels
PSA
What is the term for the human male gamete
Spermatozoon
The reproductive structures in the perineal region are called
external genitalia
What happens to the chromosome number as a result of meiosis
it is reduced by half
The female gonad is the
ovary
What structure is the female gonad?
ovary
Which of the following male reproductive structures is responsible for conducting semen into the vagina of the female
penis
The prostate, seminal vesicle, and bulbourethral glands do NOT
provide chemicals to make the female's vagina more acidic
The fleshy pouch that suspends the testes outside of the body cavity is the
scrotum
The external genitalia of the male include the
scrotum and the penis
The seminal vesicles __________.
secrete a fructose-rich, mucoid substance
The accessory organs in the male that secrete into the ejaculatory ducts and the urethra are the
seminal vesicles, prostate gland, and bulbo-urethral glands