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Maris anatomy 1 > male reproductive system > Flashcards

male reproductive system Flashcards

1
Q

what is the embryological origin of the testes and ovaries

A

intermediate mesoderm found in post abdominal wall

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2
Q

what time does testes descended

A

before birth

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3
Q

failure of testes to descend

A

cryptochordism

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4
Q

where does the spermatic cord come out of

A

superficial inguinal ring

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5
Q

what are the layers of the spermatic cord

A

intermal spermatic fascia
cremasteric fascia
external spermatic fascia

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6
Q

internal spermatic fascia is from what

A

transversalis fascia

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7
Q

cremasteric fascia is from what

A

internal oblique muscle

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8
Q

external spermatic fascia is from what

A

external oblique muscle

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9
Q

contents of the spermatic cord

A 
ductus deferens
testicular a and v  (pampiniform plexus)
genital branch of genitofermoral n
deferential a and v
cremasteric a
lymphatics and autonomic nerves
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10
Q

pampiniform plexus aka

A

testicular a and v

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11
Q

skin of the scrotum is () and covered with sparse ()

A

rugose (wrinkled) and covered with sparse hairs

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12
Q

what makes the scrotum wrinkly

A

dartos muscle

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13
Q

where do u find the dartos muscle

A

superficial fascia (fatty layer but no fat there)

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14
Q

what is the scrotum that is separated chambers is marked externally by

A

perineal raphe

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15
Q

layers of scrotum

A 
skin
dartos
colle's fascia
spermatic fascia-cremaster muscle
tunica vaginalis-lines the scrotal cavity
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16
Q

the innermost layer (tunica vaginalis) is derived from

A

parietal peritoneum

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17
Q

scrotum blood supply

A

internal pudendal a
external pudendal a
cremasteric a

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18
Q

internal pudendal ais branch of

A

internal iliac a

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19
Q

external pudendal a is branch of

A

femoral a

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20
Q

cremasteric a is branch of

A

testicular a

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21
Q

nerve supply of scrotum

A

ilioinguinal nerve
genital branch of gf n
perineal nn (branches of pudendal nerve)
PFC nerve

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22
Q

cremasteric reflex

A

(look uP)

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23
Q

elephantiasis

A

protozoa infection infecting lymphatic vessels obstruction so get enlarged scrotum

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24
Q

varicocele

A

having varicose veins in scrotum like bag of warms

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25
Q

hydrocele

A

fluid in tunica vaginalis testes (the space)

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26
Q

cause of hydrocele

A

suspect from increased secretion of serous fluid case from parietal peritoneum

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27
Q

sign of hydrocele

A

shine a light through scrotum it will be luminous (transilumination)

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28
Q

hematocele

A

blood in scrotum

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29
Q

inguinal hernia check where

A

superficial inguinal ring

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30
Q

on tip of finger its what typeof hernia

A

indirect

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31
Q

on side of finger is what type of hernia

A

direct

32
Q

what are the dimentions of the testis

A

4-5 cm long, 3 cm wide, 2 cm thick

33
Q

what is the serous membrane that covers the testes called

A

tunica vaginalis

34
Q

internal to the tunica vaginalis is a dense white fibrous capsule called

A

tunica albuginea

35
Q

what are the two layers of the tunica vaginalis

A

parietal and visceral layer

36
Q

function of testes

A

production of sperm by seminiferous tubules

secretion of testosterone by interstitial cells

37
Q

where do you find the interstitial cells

A

seminiferous tubules

38
Q

what hormones stimulate the testes

A

LH (ICSH) and FSH

39
Q

what does the pituitary gland secrete to stimulate spermatigogenesis

A

fsh

40
Q

what does icsh stand for

A

interstitial cell stimulating hormone

41
Q

what does lh do

A

stimulates interstitial cells to produce testosterone

42
Q

whats responsible for male secondary sex characteristics

A

testosterone

43
Q

why does the scrotum wrinkle

A

cold weather to maintain the temperature constant if warm it hangs

sexual arousal right before ejaculation

44
Q

what two muscles keep the testes close to the cavity

A

cremasteric and dartos

45
Q

blood supply of testes

A

testicular a

46
Q

nerve supply of testes

A

testicular plexus T10

47
Q

why when get hit in balls it hurts around umbilicus

A

cause testes innervated by t10

48
Q

where do you find the testicular plexus

A

just below renal a from abdominal aorta

49
Q

what od they do to induce descent of testes

A

inject HCG or testosterone

surgery

50
Q

what could happen if left testes in cavity

A

sterility cause too warm

predispose to testicular cancer

51
Q

testicular torsion what is it

A

ligament that attaches the testes to bottom of scrotum you could lose blood supply to testes cause it twists

52
Q

what does didumos mean

A

twins

53
Q

what does epididymis stand for

A

on top of the twins

54
Q

what are part of the male reproductive tract

A

epididymis
ductus deferens
ejaculatory ducts
urethra

55
Q

what is the epidiymids shape nad length

A

comma shaped structure about 1.5 inches long curved over the back and upper end of testis. irregularly twisted tube 15-20ft long when straightened (almost as long as small intestines)

56
Q

functions of epididymus

A

monitors and adjusts the composition of the tubular fluid

site of sperm maturation
storage of sperm
helps in propelling sperm cells toward the urethra
acts as a recycling center for damaged spermatozoa

57
Q

what part of epididymis becomes vas deferens

A

tail of epidiymis

58
Q

the vas deferens goes behind () and crosses () and emerges through the () () (), and enters () ()

A

bladder and crosses ureter, emerges through deep inguinal ring and enters pelvic cavity

59
Q

how long is vas deferens

A

18 inches

60
Q

does the vas deferens pass through the inguinal canal

A

yes

61
Q

vas deferens ends as a dilated portion called

A

ampulla

62
Q

the ampulla joins the () to form the ejaculatory duct

A

duct of seminal vesicle

63
Q

vas deferens function

A

convey mature sperm from epididymis to ejaculatory duct

64
Q

how long is the ejaculatory duct

A

2cm in length

65
Q

ejaculatory duct formed by union of

A

vas deferens and duct of seminal vesicle

66
Q

the ejaculatory duct pierces the posterior surface of () and open into the prostatic part of the ()

A

prostate, part of urethra

67
Q

function of ejaculatory ducts

A

drains seminal fluid into the prostatic urethra

68
Q

what are the three parts of urethra

A

prostatic urethra
membranous urethra
penile urethra

69
Q

what happens when get enlarged prostate

A

causes constriction of urethra so have problems with urination and goin a lot and retaining it

70
Q

accessory glands in the male

A

seminal vesicles
prostate gland
bulbourethral gland (cowper’s gland)
urethral glands (glands of littre)

71
Q

what is the seminal vesicles

A

two lobulated organs about 2 inch long

72
Q

where does the seminal vesicles lie

A

posterior surface/base of urinary bladder and lateral to ampulla of vas def

73
Q

function of seminal vesicles

A

secrete alkaline, viscous fluid that contains the sugar fructose, prostaglandins, amd clotting proteins (semenogelin)

74
Q

the fluid of the seminal vesicle secretion constitutes % of volume of semen

A

60% majority of it

75
Q

what does prostaglandins do

A

helps propel the sperm and stimulates the female genital tract to propel the sperm

76
Q

what does semenogelin do

A

clumps semen

Maris anatomy 1 (18 decks)

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