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BIO 169 > Male Reproductive System > Flashcards

Male Reproductive System Flashcards

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Biology 101 flashcards
1
Q

Male sex hormone

A

Androgen

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2
Q

*Male gonads

A

testes

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3
Q

*Male gamete

A

sperm

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4
Q

extension from the teste that connect blood vessel and ductus deferen. It is located between abdominal pelvic and teste

A

spermatic chord

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5
Q

Venous system from teste

A

pampiniform plexus

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6
Q

nerve of the teste

A

genitofemoral nerve

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7
Q

raised thickening in scrotal surface that divides scrotum into 2 chamber

A

raphe of scrotum

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8
Q

a serous membrane that lines the scrotal cavity.

A

tunica vaginalis

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9
Q

function of tunica vaginalis

A

reduces friction between opposing surfaces

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10
Q

layer of smooth muscle in dermis of scrotum that causes wrinkling of scrotal surface.

A

dartos muscle

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11
Q

*layer of skeletal muscle deep to dermis that causes scrotum to move closer to body due to drop in temperature or sexual arousal

A

cremaster

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12
Q

this structure divides testis into lobules

A

septa

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13
Q

*Found in lobules of scrotum tightly coiled. Also location of sperm production

A

seminiferous tubules

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14
Q

interconnected straight tubules that extend from seminiferous tubules

A

rete testis

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15
Q

this vessel connects rete testis to epididymis

A

efferent ductules

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16
Q

another name for interstitial endocrine cells

A

leydig cells

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17
Q

*important androgen hormone of male reproductive system

A

testosterone

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18
Q

what does leydig cell produce

A

dominant sex hormone androgen

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19
Q

The wide opening where ductus deferen ends. This structure also store sperm.

A

ampullla

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20
Q

*these tubular glands produce majority of semen volume

A

seminal gland

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21
Q

a short passage found where ampulla of vas deferen and seminal glands meet. It penetrate wall of prostate and empties into prostatic urethra

A

ejaculatory duct

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22
Q

small male organ found inferior to urinary bladder that release 25% of semen volume

A

prostate gland

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23
Q

another name for bulbourethral gland

A

cowper’s gland

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24
Q

*what does bulbo-urethral secrete

A

thick alkaline mucus

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25
Q

antibiotic protein found in semen

A

seminal plasmin

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26
Q

made up of sperm, seminal fluid, and enzyme

A

semen

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27
Q

another name for foreskin of penis

A

prepice

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28
Q

fold of skin surrounding tip of penis

A

prepice

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29
Q

gland found in neck and inner surface of foreskin

A

preputial gland

30
Q

waxy material secreted by preputial gland that can support bacteria

A

smegma

31
Q

*two cylindrical mass of erectile tissue

A

corpora cavernosa

32
Q

erectile body that surround distal portion of urethra

A

corpus spongiosum

33
Q

three section male urethra is divided into

A

prostatic, membranous, and spongy

34
Q

process of sperm production

A

spermatogenesis

35
Q

steps of spermatogenesis

A

mitosis, meiosis, and spermiogenesis

36
Q

what are spermatogonia

A

stem cells

37
Q

primary spermatocyte has how many chromosomes?

A

46 chromosomes

38
Q

secondary spermatocyte has how many chromosomes?

A

23 chromonsome

39
Q

what do spermatogonia differentiate into?

A

primary spermatocyte

40
Q

what do primary spermatocyte differentiate into?

A

secondary spermatocyte

41
Q

haploid male gamete that results from division of secondary spermatocyte

A

spermatid

42
Q

process where spermatid undergo (physical) maturation into sperm

A

spermiogenesis

43
Q

lose contact with wall of seminiferous tubules and enter fluid in lumen

A

spermiation

44
Q

these cells aid in the development and growth of sperm (mitosis and meiosis).

A

Nurse cells

45
Q

another name for sertoli cells

A

nurse cells

46
Q

*this structure isolate seminiferous tubules from general circulation and provide immune protection

A

Blood Testis Barrier

47
Q

What do nurse cells secrete?

A

Inhibins (which decrease the production of FSH and GnRH). It also secretes Androgen binding protein (ABP) which stimulate spermiogenesis.

48
Q

*part of sperm that contains enzyme essential for fertilization?

A

acrosome

49
Q

where is the nucleus found in sperm?

A

head

50
Q

which part of sperm contains the mitochondrial spiral

A

middle

51
Q

process where sperm becomes motile

A

capacitation

52
Q

where do capacitation first occur?

A

when sperm mix with secretion of seminal gland

53
Q

where does capacitation occur second?

A

reproductive tract of female

54
Q

what steroid hormone does interstitial endocrine cell (leydig cells) secrete?

A

testosterone (androgen)

55
Q

what does LH target in male reproductive system

A

Interstitial endocrine cell (leydig)

56
Q

*What does FSH target

A

Nurse cell (sertoli)

57
Q

neurostimulator that bring on an erection caused by vasodilation

A

nitric oxide

58
Q

two forms of testosterone

A

dihydrotestosterone (DHT) and Estradiol

59
Q

function of aromatase

A

convert testosterone to estradiol when bound

60
Q

contraction of ischiocavernosus and bulbospongiosus muscle cause this event

A

ejaculation

61
Q

process of losing erection

A

detumescence

62
Q

arousal pathway

A

arousal, erection, emission, then ejaculation

63
Q

spermatogenesis pathway

A

testis, epididymis, ductus deferen, ejaculatory duct, then urethra

64
Q

what are the accessory gland of male reproductive system

A

seminal gland, prostate gland, and bulbourethral gland

65
Q

what form temporary semen clot in vagina?

A

fibrinogen

66
Q

what stimulates smooth muscle contraction in the reproductive tract

A

prostaglandin

67
Q

another name for semen

A

ejaculate

68
Q

primary spermatocyte takes how many days

A

16 days

69
Q

secondary spermatocyte takes how many days

A

24 days

70
Q

what stimulate nurse cells

A

testosterone and FSH

71
Q

testosterone is what type of hormone

A

steroid

72
Q

where is estradiol found in male adult

A

plasma

BIO 169 (8 decks)

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