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BIO 169 > Male Reproductive System > Flashcards

Male Reproductive System Flashcards

(72 cards)

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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
antibiotic protein found in semen
seminal plasmin
26
made up of sperm, seminal fluid, and enzyme
semen
27
another name for foreskin of penis
prepice
28
fold of skin surrounding tip of penis
prepice
29
gland found in neck and inner surface of foreskin
preputial gland
30
waxy material secreted by preputial gland that can support bacteria
smegma
31
*two cylindrical mass of erectile tissue
corpora cavernosa
32
erectile body that surround distal portion of urethra
corpus spongiosum
33
three section male urethra is divided into
prostatic, membranous, and spongy
34
process of sperm production
spermatogenesis
35
steps of spermatogenesis
mitosis, meiosis, and spermiogenesis
36
what are spermatogonia
stem cells
37
primary spermatocyte has how many chromosomes?
46 chromosomes
38
secondary spermatocyte has how many chromosomes?
23 chromonsome
39
what do spermatogonia differentiate into?
primary spermatocyte
40
what do primary spermatocyte differentiate into?
secondary spermatocyte
41
haploid male gamete that results from division of secondary spermatocyte
spermatid
42
process where spermatid undergo (physical) maturation into sperm
spermiogenesis
43
lose contact with wall of seminiferous tubules and enter fluid in lumen
spermiation
44
these cells aid in the development and growth of sperm (mitosis and meiosis).
Nurse cells
45
another name for sertoli cells
nurse cells
46
*this structure isolate seminiferous tubules from general circulation and provide immune protection
Blood Testis Barrier
47
What do nurse cells secrete?
Inhibins (which decrease the production of FSH and GnRH). It also secretes Androgen binding protein (ABP) which stimulate spermiogenesis.
48
*part of sperm that contains enzyme essential for fertilization?
acrosome
49
where is the nucleus found in sperm?
head
50
which part of sperm contains the mitochondrial spiral
middle
51
process where sperm becomes motile
capacitation
52
where do capacitation first occur?
when sperm mix with secretion of seminal gland
53
where does capacitation occur second?
reproductive tract of female
54
what steroid hormone does interstitial endocrine cell (leydig cells) secrete?
testosterone (androgen)
55
what does LH target in male reproductive system
Interstitial endocrine cell (leydig)
56
*What does FSH target
Nurse cell (sertoli)
57
neurostimulator that bring on an erection caused by vasodilation
nitric oxide
58
two forms of testosterone
dihydrotestosterone (DHT) and Estradiol
59
function of aromatase
convert testosterone to estradiol when bound
60
contraction of ischiocavernosus and bulbospongiosus muscle cause this event
ejaculation
61
process of losing erection
detumescence
62
arousal pathway
arousal, erection, emission, then ejaculation
63
spermatogenesis pathway
testis, epididymis, ductus deferen, ejaculatory duct, then urethra
64
what are the accessory gland of male reproductive system
seminal gland, prostate gland, and bulbourethral gland
65
what form temporary semen clot in vagina?
fibrinogen
66
what stimulates smooth muscle contraction in the reproductive tract
prostaglandin
67
another name for semen
ejaculate
68
primary spermatocyte takes how many days
16 days
69
secondary spermatocyte takes how many days
24 days
70
what stimulate nurse cells
testosterone and FSH
71
testosterone is what type of hormone
steroid
72
where is estradiol found in male adult
plasma

BIO 169 (8 decks)

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