A&P CH 28.1-28.2 DSM

Which of the following structures are NOT found in the spermatic cord? a. Testicular artery and deferential artery b. Ductus deferens and branches of the genitofermoral nerve c. Dartos muscle and cremaster muscle d. Pampiniform plexus of a testicular vein

Dartos muscle and cremaster muscle

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 is not a peripheral effect of testosterone? a. Facilitates both spermatogenesis and spermiogenesis b. maintains libido c. stimulates bone and muscle growth d. establishes and maintains male secondary sex characteristics

Facilitates both spermatogenesis and spermiogenesis

What is the term for the organs that produce gamete and hormones?

Gonads

Which of the following is true regarding meiosis?

Homologous chromosomes separate during meiosis I and sister chromatids separate during meiosis II

Which correctly describes mitosis and meiosis?

Mitosis creates genetically identical cells, whereas meiosis creates genetically unique cells

Which of the following is not consistent with benign prostatic hyperplasia (BPH)? a. Occurs as testosterone levels drop b. Can constrict the urethra and the rectum c. Occurs in men over the age of 50 d. Occurs as estrogen levels drop

Occurs as estrogen levels drop

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

Which reproductive gland encircles the urethra as it leaves the bladder and produces an acidic fluid that contributes to semen?

Prostate gland

What is the function of the ducts of the reproductive system?

Receiving and transporting gametes

What is the function of the dartos and cremaster muscles?

Regulating temperature of the testes

For sperm to be able to fertilize an egg, it must undergo capacitation, which does not involve what process? a. Sperm mixing with secretions from the bulbourethral gland b. Sperm dealing with the conditions in the female reproductive tract c. Mixing of the sperm with fluid from the seminal vesicles d. None of the listed responses is correct.

Sperm mixing with secretions from the bulbourethral gland

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

What is the term for the human male gamete?

Spermatozoon

Seminiferous tubules and newly produced sperm are separated from the general circulation and the immune system by all of the following except ______________. a. blood-brain barrier b. tight junctions c. nurse cells d. blood-tesis barrier

blood-brain barrier

When sperm become motile and fully functional, they have undergone

capacitation

which muscle is part of the spermatic cord?

cremaster muscle

The hormone that promotes spermatogenesis along the seminiferous tubules is

follicle stimulating hormone (FSH)

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 cells in the testes are responsible for producing testosterone and other androgens?

interstitial cells

The female gonad is the

ovary

men over the age of 50 are periodically screened for prostate cancer by measuring the blood for elevate levels of

prostate specific antigen(PSA)

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 functions of the sustentacular cells (nurse cells) in the male include all of the following except?

secretion of testosterone

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

Which of the following is not found in seminal fluids? a. fructose b. prostaglandins c. smegma d. seminalplasmin

smegma

What is produced by spermiogenesis?

sperm

Which cells in the seminiferous tubules regularly undergo mitosis?

spermatogonia

The male gonad is the

testis

Which of the following is not true of testosterone? a. About two-thirds of testosterone is bound to gonadal-binding globulin (GBG), which carries testosterone throughout the body. b. Testosterone is a protein. c. Testosterone diffuses across the plasma membrane of target cells and binds to an intracellular receptor, which then directly binds to DNA in the nucleus. d. About one-third of testosterone is bound to albumin.

testosterone is a protein

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

The reproductive structures in the perineal region are called

external genitalia

The enzymes needed to bore into the corona radiata reside in which portion of the sperm?

Acrosomal cap

Which hormone acts to reduce the rate at which the anterior pituitary produces FSH?

Inhibin

Which of the following is not true of the epididymis? a. It acts as a recycling center for damaged sperm. b. It connects the ductus deferens with the seminal vesicle. c. It monitors and adjusts the compostition of the fluids produced by the seminiferous tubules. d. It stores and protects sperm and facilitates their functional maturation.

It connects the ductus deferens with the seminal vesicle

What happens to the chromosome number as a result of meiosis?

It is reduced by half.

What is the hormone that directly stimulates testosterone production?

LH

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 of the following does not occur during spermiogenesis? a. The acrosome and nucleus are packaged into the head of the sperm. b. The mitochondria and Golgi apparatus are packaged into the head of the sperm. c. The mitochondria are packaged into the middle piece of the sperm. d. The majority of the cytoplasm is shed.

The mitochondria and Golgi apparatus are packaged into the head of the sperm.

Which of the following statements about bulbourethral glands is incorrect?

They contribute approximately 25 percent of the semen volume.

Which of the following is accurate regarding the events of fertilization?

Two haploid gametes combine to make the diploid zygote

Enzymes that help the sperm penetrate the ovum, or egg, are in the _____ of the sperm cell.

acrosome

For normal human reproduction to occur, which of the following organ systems would not necessarily have to function normally? a. Nervous system b. digestive system c. endocrine system d. cardiovascular system

digestive system

The secretions of the seminal vesicles are discharged into the

ejaculatory duct

Which of the following do(es) NOT contribute to semen production? a. prostate gland b. seminal vesicles c. testes d. endometrial glands

endometrial glands