mastering A&P 2 ch. 26 group 1 modules 26.1-26.4 DSM

the reproductive structures in the perineal region are called. accessory glands external genitalia gonads reproductive ducts

external genitalia

What is produced by spermiogenesis? Sperm Spermatids Primary spermatocytes Secondary spermatocytes

sperm

the male gonad is the _________. ovary ductus deferens penis testis

testis

which of the following structures are not found in the spermatic cord? Ductus deferens and branches of the genitofermoral nerve Dartos muscle and cremaster muscle Pampiniform plexus of a testicular vein Testicular artery and deferential artery

Dartos muscle and cremaster muscle

The body of the spermatic cord is a structure that includes which of the following? Vas deferens, prostate gland, blood vessels, and urethra Seminal vesicles, prostate, and bulbo-urethral glands Ductus deferens, blood vessels, nerves, and lymphatics Epididymis, ductus deferens, blood vessels, and nerves

Ductus deferens, blood vessels, nerves, and lymphatics

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 tight junctions nurse cells blood-testis barrier

blood-brain barrier

what is the term for the organs that produce gametes and hormones? accessory reproductive glands uterus gonads external genitalia

gonads

which of the following terms is not specifically to describe egg and sperm? gametes gonads haploids formed by meiosis

gonads

the enzymes needed to bore into the corona radiata reside in which portion of the sperm? Spiral mitochondria of the neck Tail Acrosomal cap Nucleus

Acrosomal cap

Which cells in the seminiferous tubules regularly undergo mitosis? Spermatids Secondary spermatocytes Spermatogonia Primary spermatocytes

Spermatogonia

Enzymes that help the sperm penetrate the ovum, or egg, are in the ________ of the sperm cell. neck acrosome tail middle piece

acrosome

which muscle is part of the spermatic cord? dartos muscle ischiocavernous muscle bulbospongeous muscle cremaster muscle

cremaster muscle

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

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

The dense layer of connective tissue that directly covers the testes is the __________. tunica albuginea raphe of the scrotum visceral layer of the tunica vaginalis paritetal layer of the tunica vaginalis

tunica aluginea

Which of the following is true regarding meiosis? The products of meiosis I are diploid, while the products of meiosis II are haploid. Homologous chromosomes separate during meiosis I, and sister chromatids separate during meiosis II. Sister chromatids separate during meiosis I, and homologous chromosomes separate during meiosis II. Equatorial division is followed by reductional division.

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. Spermatogonia undergo meiosis, whereas primary spermatocytes undergo mitosis. Mitosis involves separation of homologous chromosomes, whereas meiosis involves the separation of sister chromatids. Mitosis creates haploid cells, whereas meiosis creates diploid cells.

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

Which of the following states the correct order in which are cells produced in spermatogenesis? Spermatogonium a spermatid a primary spermatocyte a secondary spermatocyte a sperm. Spermatogonium a primary spermatocyte a secondary spermatocyte a spermatid a sperm. Spermatogonium a primary spermatocyte a spermatid a secondary spermatocyte a sperm. Spermatid a primary spermatocyte a secondary spermatocyte a spermatogonium a sperm.

Spermatogonium a primary spermatocyte a secondary spermatocyte a spermatid a sperm.

which cells in the testes are responsible for producing testosterone and other androgens? follicle cells interstitial cells spermatogonia nurse cells

interstitial cells

what happens to the chromosome number as a result of meiosis? it is doubled it is reduced by half it is not changed the cell becomes diploid

it is reduced by half

Which of the following male reproductive structures is responsible for conducting semen into the vagina of the female? Ductus deferens Epididymis Ejaculatory duct Penis

penis

what is the function of the dartos and cremaster muscles? moving sperm out of the testes helping in ejaculation regulating the temperature of the testes helping in emission

regulating the temperature of the testes

the fleshy pouch that suspends the testes outside of the body cavity is the ___________. scrotum penis ductus deferens epididymis

scrotum

the external genitalia of the male include the _________. epididymis prepuce and the glans scrotum and the penis bulbourethral glands

scrotum and the penis

the functions of the senstentacular cells (nurse cells) in the male include all of the following except? secretion of testosterone maintenance of the blood-testis barrier secretion of inhibin- and androgen-binding protein support of spermiogenesis

secretion of testosterone