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UROGENITAL > [ANAT] SCROTUM & TESTIS > Flashcards

[ANAT] SCROTUM & TESTIS Flashcards

1
Q

external genital organs (5)

A

1-scrotum
2-testis
3-epididymis
4-spermatic cord
5-penis

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2
Q

internal genital organs (4)

A

1-prostate
2-seminal vesicles
3-vas deferens
4-ejaculatory duct

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3
Q

scrotum contains

A

testis
epidydymis
spermatic cord

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4
Q

site of scrotum

A

below symphysis pubis
b/w anteromedial aspects of thighs

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5
Q

layers of scrotum

A

1-skin
2-superficial fascia (dartos & colle’s)
3-external spermatic fascia
4-cremasteric muscle & fascia
5-internal spermatic fascia
6-loose areolar tissue

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6
Q

superficial fascia covering scrotum consists of

A

dartos muscle
colle’s fascia

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7
Q

external spermatic fascia is an extension of

A

external oblique aponeurosis

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8
Q

internal spermatic fascia is an extension of

A

fascia transversalis

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9
Q

cremasteric muscle & fascia are an extension of

A

internal oblique muscle

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10
Q

loose areolar tissue of scrotum connects which 2 structures

A

internal spermatic fascia w/ parietal layer of tunica vaginalis

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11
Q

dartos muscle characteristics

A

1-smooth muscle
2-supply: sympathetic fibers
3-regulates temp of testis & scrotum

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12
Q

nerve fibers supplying dartos muscle accompany____

A

genital branch of genitofemoral n.

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13
Q

scrotum is divided into 2 halves by

A

scrotal septum

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14
Q

scrotal septum indicates

A

bilateral origin of scrotum from 2 genital swellings

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15
Q

which side of scrotum is longer & why?

A

left.
longer left spermatic cord

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16
Q

characteristics of skin covering scrotum

A

has longitudinal median raphe
thin, pigmented, rugose
sebaceous & sweat glands

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17
Q

longitudinal median raphe of scrotum demarcates

A

line of fusion of 2 halves of scrotum during development

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18
Q

anterior 1/3 of scrotum nerve supply

A

1-ilioinguinal nerve
2-genital br of genitofemoral

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19
Q

posterior 2/3 of scrotum nerve supply

A

1-scrotal br of perineal nerve
2-perineal br of posterior cutaneous nerve of thigh

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20
Q

L1 supplies

A

anterior 1/3 of scrotum

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21
Q

S3 supplies

A

posterior 2/3 of scrotum

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22
Q

scrotum arterial supply

A

1-external pudendal br of femoral artery
2-scrotal br of internal pudendal artery
3-cremasteric br of inferior epigastric artery

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23
Q

1ry sex organ

A

testis

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24
Q

tunica albuginea is thickened along the

A

Mediastinum of testis

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25
Q

describe structure of testis in detail

A

1- Tunica albuginea sends fibrous septa & divides testis into 200-300 lobules
2-each lobule has 2 seminiferous tubules
3-seminiferous tubules unite & form seminiferous ductules
4-seminiferous ductules unite & form rete testis @ mediastinum testis
5-rete testis give rise to 12-20 vasa efferentia
6-vasa efferentia form head of epididymis
7-unite & form duct of epididymis

26
Q

testis arterial supply

A

1-testicular artery: br of abdominal arota
2-artery of vas: br of superior vesical
3-cremasteric: br of inferior epigasteric

27
Q

testis venous drainage

A

right testicular vein
left testicular vein

28
Q

right testicular vein drains into

A

IVC

29
Q

left testicular vein drains into

A

left renal vein

30
Q

testicular artery is a branch of

A

abdominal aorta
@ L2

31
Q

testicular artery is a branch of

A

abdominal aorta
@ L2

32
Q

abdominal aorta branches into testicular artery at level

A

L2

33
Q

artery of vas is a branch of

A

superior vesical artery

34
Q

cremasteric artery is a branch of

A

inferior epigastric artery

35
Q

testis lymphatic drainage

A

pre-aortic LNs
lateral aortic LNs

36
Q

plexus regulating temperature of testis

A

pampiniform plexus

37
Q

pampinform plexus condenses into

A

4 veins @ superficial inguinal ring
2 veins @ deep inguinal ring

38
Q

testis nerve supply

A

sympathetic fibers accompanying testicular artery

39
Q

nerve fibers supplying testis are connected to

A

T10

40
Q

how to identify the side

A

1-epididymis is posterior to testis
2-vas deferens lies postero-medially
3-sinus of epididymis is lateral

41
Q

testis are kept cool for spermatogenesis by

A

1-vascularity of scrotal skin
⤷ rich in sweat glands
2-absence of subcutaneous fat
3-Relaxation of dartos muscle

42
Q

testis are kept warm through

A

1-contraction of dartos muscle
2-contraction of cremaster muscle

43
Q

relaxation of dartos muscle causes

A

elongates scrotal skin
↑surface area of scrotum

44
Q

sinus of epididymis is located

A

LATERALLY

45
Q

site of testis

A

suspended in scrotum by spermatic cord

46
Q

posterior border is related to

A

vas deferens
epididymis

47
Q

upper pole of testis provide attachment for

A

spermatic cord

48
Q

upper pole of testis is related to

A

appendix of testis

49
Q

border not/partially covered by tunica vaginalis

A

posterior border

50
Q

the lateral part of the posterior border is related to

A

epididymis

51
Q

posterior border of testis is separated from epididymis by

A

sinus of epididymis

52
Q

coverings of testis

A

T. vaginalis
T. albuginea
T. vasculosa

53
Q

innermost covering

A

T. vaginalis

54
Q

deepest covering

A

T. vasculosa

55
Q

T. vaginalis represents

A

lower end of processus vaginalis

56
Q

tunica vaginalis covers___except__

A

whole testis except posterior border

57
Q

layers of T. vaginalis

A

parietal & visceral

58
Q

T. albuginea is covered by parietal T. vaginalis all around except

A

posteriorly (entrance of BVs)

59
Q

T vasculosa

A

innermost vascular layer
vascularized CT

60
Q

T vasculosa lines

A

lobules

61
Q

proximal part of T. vaginalis is obliterated at_____to form____

A

birth to form vestige of processus vaginalis

UROGENITAL (22 decks)

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